3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
11 * Ext.data.Api is a singleton designed to manage the data API including methods
12 * for validating a developer's DataProxy API. Defines variables for CRUD actions
13 * create, read, update and destroy in addition to a mapping of RESTful HTTP methods
14 * GET, POST, PUT and DELETE to CRUD actions.
17 Ext.data.Api = (function() {
19 // private validActions. validActions is essentially an inverted hash of Ext.data.Api.actions, where value becomes the key.
20 // Some methods in this singleton (e.g.: getActions, getVerb) will loop through actions with the code <code>for (var verb in this.actions)</code>
21 // For efficiency, some methods will first check this hash for a match. Those methods which do acces validActions will cache their result here.
22 // We cannot pre-define this hash since the developer may over-ride the actions at runtime.
23 var validActions = {};
27 * Defined actions corresponding to remote actions:
30 create : 'create', // Text representing the remote-action to create records on server.
31 read : 'read', // Text representing the remote-action to read/load data from server.
32 update : 'update', // Text representing the remote-action to update records on server.
33 destroy : 'destroy' // Text representing the remote-action to destroy records on server.
47 * Defined {CRUD action}:{HTTP method} pairs to associate HTTP methods with the
48 * corresponding actions for {@link Ext.data.DataProxy#restful RESTful proxies}.
67 * Returns true if supplied action-name is a valid API action defined in <code>{@link #actions}</code> constants
68 * @param {String} action
69 * @param {String[]}(Optional) List of available CRUD actions. Pass in list when executing multiple times for efficiency.
72 isAction : function(action) {
73 return (Ext.data.Api.actions[action]) ? true : false;
77 * Returns the actual CRUD action KEY "create", "read", "update" or "destroy" from the supplied action-name. This method is used internally and shouldn't generally
78 * need to be used directly. The key/value pair of Ext.data.Api.actions will often be identical but this is not necessarily true. A developer can override this naming
79 * convention if desired. However, the framework internally calls methods based upon the KEY so a way of retreiving the the words "create", "read", "update" and "destroy" is
80 * required. This method will cache discovered KEYS into the private validActions hash.
81 * @param {String} name The runtime name of the action.
82 * @return {String||null} returns the action-key, or verb of the user-action or null if invalid.
85 getVerb : function(name) {
86 if (validActions[name]) {
87 return validActions[name]; // <-- found in cache. return immediately.
89 for (var verb in this.actions) {
90 if (this.actions[verb] === name) {
91 validActions[name] = verb;
95 return (validActions[name] !== undefined) ? validActions[name] : null;
99 * Returns true if the supplied API is valid; that is, check that all keys match defined actions
100 * otherwise returns an array of mistakes.
101 * @return {String[]||true}
103 isValid : function(api){
105 var crud = this.actions; // <-- cache a copy of the actions.
106 for (var action in api) {
107 if (!(action in crud)) {
108 invalid.push(action);
111 return (!invalid.length) ? true : invalid;
115 * Returns true if the supplied verb upon the supplied proxy points to a unique url in that none of the other api-actions
116 * point to the same url. The question is important for deciding whether to insert the "xaction" HTTP parameter within an
117 * Ajax request. This method is used internally and shouldn't generally need to be called directly.
118 * @param {Ext.data.DataProxy} proxy
119 * @param {String} verb
122 hasUniqueUrl : function(proxy, verb) {
123 var url = (proxy.api[verb]) ? proxy.api[verb].url : null;
125 for (var action in proxy.api) {
126 if ((unique = (action === verb) ? true : (proxy.api[action].url != url) ? true : false) === false) {
134 * This method is used internally by <tt>{@link Ext.data.DataProxy DataProxy}</tt> and should not generally need to be used directly.
135 * Each action of a DataProxy api can be initially defined as either a String or an Object. When specified as an object,
136 * one can explicitly define the HTTP method (GET|POST) to use for each CRUD action. This method will prepare the supplied API, setting
137 * each action to the Object form. If your API-actions do not explicitly define the HTTP method, the "method" configuration-parameter will
138 * be used. If the method configuration parameter is not specified, POST will be used.
140 new Ext.data.HttpProxy({
141 method: "POST", // <-- default HTTP method when not specified.
143 create: 'create.php',
146 destroy: 'destroy.php'
150 // Alternatively, one can use the object-form to specify the API
151 new Ext.data.HttpProxy({
153 load: {url: 'read.php', method: 'GET'},
154 create: 'create.php',
155 destroy: 'destroy.php',
161 * @param {Ext.data.DataProxy} proxy
163 prepare : function(proxy) {
165 proxy.api = {}; // <-- No api? create a blank one.
167 for (var verb in this.actions) {
168 var action = this.actions[verb];
169 proxy.api[action] = proxy.api[action] || proxy.url || proxy.directFn;
170 if (typeof(proxy.api[action]) == 'string') {
171 proxy.api[action] = {
172 url: proxy.api[action]
179 * Prepares a supplied Proxy to be RESTful. Sets the HTTP method for each api-action to be one of
180 * GET, POST, PUT, DELETE according to the defined {@link #restActions}.
181 * @param {Ext.data.DataProxy} proxy
183 restify : function(proxy) {
184 proxy.restful = true;
185 for (var verb in this.restActions) {
186 proxy.api[this.actions[verb]].method = this.restActions[verb];
188 // TODO: perhaps move this interceptor elsewhere? like into DataProxy, perhaps? Placed here
189 // to satisfy initial 3.0 final release of REST features.
190 proxy.onWrite = proxy.onWrite.createInterceptor(function(action, o, response, rs) {
191 var reader = o.reader;
192 var res = new Ext.data.Response({
197 switch (response.status) {
198 case 200: // standard 200 response, send control back to HttpProxy#onWrite
201 case 201: // entity created but no response returned
202 //res[reader.meta.successProperty] = true;
205 case 204: // no-content. Create a fake response.
206 //res[reader.meta.successProperty] = true;
207 //res[reader.meta.root] = null;
216 if (res[reader.meta.successProperty] === true) {
217 this.fireEvent("write", this, action, res[reader.meta.root], res, rs, o.request.arg);
219 this.fireEvent('exception', this, 'remote', action, o, res, rs);
222 if (res.success === true) {
223 this.fireEvent("write", this, action, res.data, res, rs, o.request.arg);
225 this.fireEvent('exception', this, 'remote', action, o, res, rs);
227 o.request.callback.call(o.request.scope, res.data, res, res.success);
229 return false; // <-- false to prevent intercepted function from running.
237 * Experimental. Do not use directly.
239 Ext.data.Response = function(params, response) {
240 Ext.apply(this, params, {
244 Ext.data.Response.prototype = {
251 getMessage : function() {
254 getSuccess : function() {
257 getStatus : function() {
260 getRoot : function() {
263 getRawResponse : function() {
269 * @class Ext.data.Api.Error
271 * Error class for Ext.data.Api errors
273 Ext.data.Api.Error = Ext.extend(Ext.Error, {
274 constructor : function(message, arg) {
276 Ext.Error.call(this, message);
280 Ext.apply(Ext.data.Api.Error.prototype, {
282 'action-url-undefined': 'No fallback url defined for this action. When defining a DataProxy api, please be sure to define an url for each CRUD action in Ext.data.Api.actions or define a default url in addition to your api-configuration.',
283 'invalid': 'received an invalid API-configuration. Please ensure your proxy API-configuration contains only the actions defined in Ext.data.Api.actions',
284 'invalid-url': 'Invalid url. Please review your proxy configuration.',
285 'execute': 'Attempted to execute an unknown action. Valid API actions are defined in Ext.data.Api.actions"'
292 * @class Ext.data.SortTypes
\r
294 * Defines the default sorting (casting?) comparison functions used when sorting data.
\r
296 Ext.data.SortTypes = {
\r
298 * Default sort that does nothing
\r
299 * @param {Mixed} s The value being converted
\r
300 * @return {Mixed} The comparison value
\r
302 none : function(s){
\r
307 * The regular expression used to strip tags
\r
311 stripTagsRE : /<\/?[^>]+>/gi,
\r
314 * Strips all HTML tags to sort on text only
\r
315 * @param {Mixed} s The value being converted
\r
316 * @return {String} The comparison value
\r
318 asText : function(s){
\r
319 return String(s).replace(this.stripTagsRE, "");
\r
323 * Strips all HTML tags to sort on text only - Case insensitive
\r
324 * @param {Mixed} s The value being converted
\r
325 * @return {String} The comparison value
\r
327 asUCText : function(s){
\r
328 return String(s).toUpperCase().replace(this.stripTagsRE, "");
\r
332 * Case insensitive string
\r
333 * @param {Mixed} s The value being converted
\r
334 * @return {String} The comparison value
\r
336 asUCString : function(s) {
\r
337 return String(s).toUpperCase();
\r
342 * @param {Mixed} s The value being converted
\r
343 * @return {Number} The comparison value
\r
345 asDate : function(s) {
\r
350 return s.getTime();
\r
352 return Date.parse(String(s));
\r
357 * @param {Mixed} s The value being converted
\r
358 * @return {Float} The comparison value
\r
360 asFloat : function(s) {
\r
361 var val = parseFloat(String(s).replace(/,/g, ""));
\r
362 return isNaN(val) ? 0 : val;
\r
367 * @param {Mixed} s The value being converted
\r
368 * @return {Number} The comparison value
\r
370 asInt : function(s) {
\r
371 var val = parseInt(String(s).replace(/,/g, ""), 10);
\r
372 return isNaN(val) ? 0 : val;
\r
375 * @class Ext.data.Record
376 * <p>Instances of this class encapsulate both Record <em>definition</em> information, and Record
377 * <em>value</em> information for use in {@link Ext.data.Store} objects, or any code which needs
378 * to access Records cached in an {@link Ext.data.Store} object.</p>
379 * <p>Constructors for this class are generated by passing an Array of field definition objects to {@link #create}.
380 * Instances are usually only created by {@link Ext.data.Reader} implementations when processing unformatted data
382 * <p>Note that an instance of a Record class may only belong to one {@link Ext.data.Store Store} at a time.
383 * In order to copy data from one Store to another, use the {@link #copy} method to create an exact
384 * copy of the Record, and insert the new instance into the other Store.</p>
385 * <p>When serializing a Record for submission to the server, be aware that it contains many private
386 * properties, and also a reference to its owning Store which in turn holds references to its Records.
387 * This means that a whole Record may not be encoded using {@link Ext.util.JSON.encode}. Instead, use the
388 * <code>{@link #data}</code> and <code>{@link #id}</code> properties.</p>
389 * <p>Record objects generated by this constructor inherit all the methods of Ext.data.Record listed below.</p>
391 * <p>This constructor should not be used to create Record objects. Instead, use {@link #create} to
392 * generate a subclass of Ext.data.Record configured with information about its constituent fields.<p>
393 * <p><b>The generated constructor has the same signature as this constructor.</b></p>
394 * @param {Object} data (Optional) An object, the properties of which provide values for the new Record's
395 * fields. If not specified the <code>{@link Ext.data.Field#defaultValue defaultValue}</code>
396 * for each field will be assigned.
397 * @param {Object} id (Optional) The id of the Record. This id should be unique, and is used by the
398 * {@link Ext.data.Store} object which owns the Record to index its collection of Records. If
399 * an <code>id</code> is not specified a <b><code>{@link #phantom}</code></b> Record will be created
400 * with an {@link #Record.id automatically generated id}.
402 Ext.data.Record = function(data, id){
403 // if no id, call the auto id method
404 this.id = (id || id === 0) ? id : Ext.data.Record.id(this);
405 this.data = data || {};
409 * Generate a constructor for a specific Record layout.
410 * @param {Array} o An Array of <b>{@link Ext.data.Field Field}</b> definition objects.
411 * The constructor generated by this method may be used to create new Record instances. The data
412 * object must contain properties named after the {@link Ext.data.Field field}
413 * <b><tt>{@link Ext.data.Field#name}s</tt></b>. Example usage:<pre><code>
414 // create a Record constructor from a description of the fields
415 var TopicRecord = Ext.data.Record.create([ // creates a subclass of Ext.data.Record
416 {{@link Ext.data.Field#name name}: 'title', {@link Ext.data.Field#mapping mapping}: 'topic_title'},
417 {name: 'author', mapping: 'username', allowBlank: false},
418 {name: 'totalPosts', mapping: 'topic_replies', type: 'int'},
419 {name: 'lastPost', mapping: 'post_time', type: 'date'},
420 {name: 'lastPoster', mapping: 'user2'},
421 {name: 'excerpt', mapping: 'post_text', allowBlank: false},
422 // In the simplest case, if no properties other than <tt>name</tt> are required,
423 // a field definition may consist of just a String for the field name.
427 // create Record instance
428 var myNewRecord = new TopicRecord(
430 title: 'Do my job please',
433 lastPost: new Date(),
434 lastPoster: 'Animal',
435 excerpt: 'No way dude!',
438 id // optionally specify the id of the record otherwise {@link #Record.id one is auto-assigned}
440 myStore.{@link Ext.data.Store#add add}(myNewRecord);
443 * @return {function} A constructor which is used to create new Records according
444 * to the definition. The constructor has the same signature as {@link #Record}.
447 Ext.data.Record.create = function(o){
448 var f = Ext.extend(Ext.data.Record, {});
450 p.fields = new Ext.util.MixedCollection(false, function(field){
453 for(var i = 0, len = o.length; i < len; i++){
454 p.fields.add(new Ext.data.Field(o[i]));
456 f.getField = function(name){
457 return p.fields.get(name);
462 Ext.data.Record.PREFIX = 'ext-record';
463 Ext.data.Record.AUTO_ID = 1;
464 Ext.data.Record.EDIT = 'edit';
465 Ext.data.Record.REJECT = 'reject';
466 Ext.data.Record.COMMIT = 'commit';
470 * Generates a sequential id. This method is typically called when a record is {@link #create}d
471 * and {@link #Record no id has been specified}. The returned id takes the form:
472 * <tt>{PREFIX}-{AUTO_ID}</tt>.<div class="mdetail-params"><ul>
473 * <li><b><tt>PREFIX</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.PREFIX</tt>
474 * (defaults to <tt>'ext-record'</tt>)</p></li>
475 * <li><b><tt>AUTO_ID</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.AUTO_ID</tt>
476 * (defaults to <tt>1</tt> initially)</p></li>
478 * @param {Record} rec The record being created. The record does not exist, it's a {@link #phantom}.
479 * @return {String} auto-generated string id, <tt>"ext-record-i++'</tt>;
481 Ext.data.Record.id = function(rec) {
483 return [Ext.data.Record.PREFIX, '-', Ext.data.Record.AUTO_ID++].join('');
486 Ext.data.Record.prototype = {
488 * <p><b>This property is stored in the Record definition's <u>prototype</u></b></p>
489 * A MixedCollection containing the defined {@link Ext.data.Field Field}s for this Record. Read-only.
491 * @type Ext.util.MixedCollection
494 * An object hash representing the data for this Record. Every field name in the Record definition
495 * is represented by a property of that name in this object. Note that unless you specified a field
496 * with {@link Ext.data.Field#name name} "id" in the Record definition, this will <b>not</b> contain
497 * an <tt>id</tt> property.
502 * The unique ID of the Record {@link #Record as specified at construction time}.
507 * Readonly flag - true if this Record has been modified.
514 * This object contains a key and value storing the original values of all modified
515 * fields or is null if no fields have been modified.
521 * <tt>false</tt> when the record does not yet exist in a server-side database (see
522 * {@link #markDirty}). Any record which has a real database pk set as its id property
523 * is NOT a phantom -- it's real.
530 join : function(store){
532 * The {@link Ext.data.Store} to which this Record belongs.
534 * @type {Ext.data.Store}
540 * Set the {@link Ext.data.Field#name named field} to the specified value. For example:
542 // record has a field named 'firstname'
543 var Employee = Ext.data.Record.{@link #create}([
548 // update the 2nd record in the store:
549 var rec = myStore.{@link Ext.data.Store#getAt getAt}(1);
551 // set the value (shows dirty flag):
552 rec.set('firstname', 'Betty');
554 // commit the change (removes dirty flag):
555 rec.{@link #commit}();
557 // update the record in the store, bypass setting dirty flag,
558 // and do not store the change in the {@link Ext.data.Store#getModifiedRecords modified records}
559 rec.{@link #data}['firstname'] = 'Wilma'); // updates record, but not the view
560 rec.{@link #commit}(); // updates the view
562 * <b>Notes</b>:<div class="mdetail-params"><ul>
563 * <li>If the store has a writer and <code>autoSave=true</code>, each set()
564 * will execute an XHR to the server.</li>
565 * <li>Use <code>{@link #beginEdit}</code> to prevent the store's <code>update</code>
566 * event firing while using set().</li>
567 * <li>Use <code>{@link #endEdit}</code> to have the store's <code>update</code>
570 * @param {String} name The {@link Ext.data.Field#name name of the field} to set.
571 * @param {Object} value The value to set the field to.
573 set : function(name, value){
574 var isObj = (typeof value === 'object');
575 if(!isObj && String(this.data[name]) === String(value)){
577 } else if (isObj && Ext.encode(this.data[name]) === Ext.encode(value)) {
584 if(typeof this.modified[name] == 'undefined'){
585 this.modified[name] = this.data[name];
587 this.data[name] = value;
594 afterEdit: function(){
596 this.store.afterEdit(this);
601 afterReject: function(){
603 this.store.afterReject(this);
608 afterCommit: function(){
610 this.store.afterCommit(this);
615 * Get the value of the {@link Ext.data.Field#name named field}.
616 * @param {String} name The {@link Ext.data.Field#name name of the field} to get the value of.
617 * @return {Object} The value of the field.
619 get : function(name){
620 return this.data[name];
624 * Begin an edit. While in edit mode, no events (e.g.. the <code>update</code> event)
625 * are relayed to the containing store.
626 * See also: <code>{@link #endEdit}</code> and <code>{@link #cancelEdit}</code>.
628 beginEdit : function(){
630 this.modified = this.modified || {};
634 * Cancels all changes made in the current edit operation.
636 cancelEdit : function(){
637 this.editing = false;
638 delete this.modified;
642 * End an edit. If any data was modified, the containing store is notified
643 * (ie, the store's <code>update</code> event will fire).
645 endEdit : function(){
646 this.editing = false;
653 * Usually called by the {@link Ext.data.Store} which owns the Record.
654 * Rejects all changes made to the Record since either creation, or the last commit operation.
655 * Modified fields are reverted to their original values.
656 * <p>Developers should subscribe to the {@link Ext.data.Store#update} event
657 * to have their code notified of reject operations.</p>
658 * @param {Boolean} silent (optional) True to skip notification of the owning
659 * store of the change (defaults to false)
661 reject : function(silent){
662 var m = this.modified;
664 if(typeof m[n] != "function"){
669 delete this.modified;
670 this.editing = false;
677 * Usually called by the {@link Ext.data.Store} which owns the Record.
678 * Commits all changes made to the Record since either creation, or the last commit operation.
679 * <p>Developers should subscribe to the {@link Ext.data.Store#update} event
680 * to have their code notified of commit operations.</p>
681 * @param {Boolean} silent (optional) True to skip notification of the owning
682 * store of the change (defaults to false)
684 commit : function(silent){
686 delete this.modified;
687 this.editing = false;
694 * Gets a hash of only the fields that have been modified since this Record was created or commited.
697 getChanges : function(){
698 var m = this.modified, cs = {};
700 if(m.hasOwnProperty(n)){
701 cs[n] = this.data[n];
708 hasError : function(){
709 return this.error !== null;
713 clearError : function(){
718 * Creates a copy of this Record.
719 * @param {String} id (optional) A new Record id, defaults to {@link #Record.id autogenerating an id}.
720 * Note: if an <code>id</code> is not specified the copy created will be a
721 * <code>{@link #phantom}</code> Record.
724 copy : function(newId) {
725 return new this.constructor(Ext.apply({}, this.data), newId || this.id);
729 * Returns <tt>true</tt> if the passed field name has been <code>{@link #modified}</code>
730 * since the load or last commit.
731 * @param {String} fieldName {@link Ext.data.Field.{@link Ext.data.Field#name}
734 isModified : function(fieldName){
735 return !!(this.modified && this.modified.hasOwnProperty(fieldName));
739 * By default returns <tt>false</tt> if any {@link Ext.data.Field field} within the
740 * record configured with <tt>{@link Ext.data.Field#allowBlank} = false</tt> returns
741 * <tt>true</tt> from an {@link Ext}.{@link Ext#isEmpty isempty} test.
744 isValid : function() {
745 return this.fields.find(function(f) {
746 return (f.allowBlank === false && Ext.isEmpty(this.data[f.name])) ? true : false;
747 },this) ? false : true;
751 * <p>Marks this <b>Record</b> as <code>{@link #dirty}</code>. This method
752 * is used interally when adding <code>{@link #phantom}</code> records to a
753 * {@link Ext.data.Store#writer writer enabled store}.</p>
754 * <br><p>Marking a record <code>{@link #dirty}</code> causes the phantom to
755 * be returned by {@link Ext.data.Store#getModifiedRecords} where it will
756 * have a create action composed for it during {@link Ext.data.Store#save store save}
759 markDirty : function(){
764 this.fields.each(function(f) {
765 this.modified[f.name] = this.data[f.name];
769 * @class Ext.StoreMgr
770 * @extends Ext.util.MixedCollection
771 * The default global group of stores.
774 Ext.StoreMgr = Ext.apply(new Ext.util.MixedCollection(), {
776 * @cfg {Object} listeners @hide
780 * Registers one or more Stores with the StoreMgr. You do not normally need to register stores
781 * manually. Any store initialized with a {@link Ext.data.Store#storeId} will be auto-registered.
782 * @param {Ext.data.Store} store1 A Store instance
783 * @param {Ext.data.Store} store2 (optional)
784 * @param {Ext.data.Store} etc... (optional)
786 register : function(){
787 for(var i = 0, s; (s = arguments[i]); i++){
793 * Unregisters one or more Stores with the StoreMgr
794 * @param {String/Object} id1 The id of the Store, or a Store instance
795 * @param {String/Object} id2 (optional)
796 * @param {String/Object} etc... (optional)
798 unregister : function(){
799 for(var i = 0, s; (s = arguments[i]); i++){
800 this.remove(this.lookup(s));
805 * Gets a registered Store by id
806 * @param {String/Object} id The id of the Store, or a Store instance
807 * @return {Ext.data.Store}
809 lookup : function(id){
811 var fields = ['field1'], expand = !Ext.isArray(id[0]);
813 for(var i = 2, len = id[0].length; i <= len; ++i){
814 fields.push('field' + i);
817 return new Ext.data.ArrayStore({
826 return Ext.isObject(id) ? (id.events ? id : Ext.create(id, 'store')) : this.get(id);
829 // getKey implementation for MixedCollection
830 getKey : function(o){
834 * @class Ext.data.Store
835 * @extends Ext.util.Observable
836 * <p>The Store class encapsulates a client side cache of {@link Ext.data.Record Record}
837 * objects which provide input data for Components such as the {@link Ext.grid.GridPanel GridPanel},
838 * the {@link Ext.form.ComboBox ComboBox}, or the {@link Ext.DataView DataView}.</p>
839 * <p><u>Retrieving Data</u></p>
840 * <p>A Store object may access a data object using:<div class="mdetail-params"><ul>
841 * <li>{@link #proxy configured implementation} of {@link Ext.data.DataProxy DataProxy}</li>
842 * <li>{@link #data} to automatically pass in data</li>
843 * <li>{@link #loadData} to manually pass in data</li>
845 * <p><u>Reading Data</u></p>
846 * <p>A Store object has no inherent knowledge of the format of the data object (it could be
847 * an Array, XML, or JSON). A Store object uses an appropriate {@link #reader configured implementation}
848 * of a {@link Ext.data.DataReader DataReader} to create {@link Ext.data.Record Record} instances from the data
850 * <p><u>Store Types</u></p>
851 * <p>There are several implementations of Store available which are customized for use with
852 * a specific DataReader implementation. Here is an example using an ArrayStore which implicitly
853 * creates a reader commensurate to an Array data object.</p>
855 var myStore = new Ext.data.ArrayStore({
856 fields: ['fullname', 'first'],
857 idIndex: 0 // id for each record will be the first element
860 * <p>For custom implementations create a basic {@link Ext.data.Store} configured as needed:</p>
862 // create a {@link Ext.data.Record Record} constructor:
863 var rt = Ext.data.Record.create([
867 var myStore = new Ext.data.Store({
868 // explicitly create reader
869 reader: new Ext.data.ArrayReader(
871 idIndex: 0 // id for each record will be the first element
877 * <p>Load some data into store (note the data object is an array which corresponds to the reader):</p>
880 [1, 'Fred Flintstone', 'Fred'], // note that id for the record is the first element
881 [2, 'Barney Rubble', 'Barney']
883 myStore.loadData(myData);
885 * <p>Records are cached and made available through accessor functions. An example of adding
886 * a record to the store:</p>
889 fullname: 'Full Name',
892 var recId = 100; // provide unique id for the record
893 var r = new myStore.recordType(defaultData, ++recId); // create new record
894 myStore.{@link #insert}(0, r); // insert a new record into the store (also see {@link #add})
896 * <p><u>Writing Data</u></p>
897 * <p>And <b>new in Ext version 3</b>, use the new {@link Ext.data.DataWriter DataWriter} to create an automated, <a href="http://extjs.com/deploy/dev/examples/writer/writer.html">Writable Store</a>
898 * along with <a href="http://extjs.com/deploy/dev/examples/restful/restful.html">RESTful features.</a>
900 * Creates a new Store.
901 * @param {Object} config A config object containing the objects needed for the Store to access data,
902 * and read the data into Records.
905 Ext.data.Store = function(config){
906 this.data = new Ext.util.MixedCollection(false);
907 this.data.getKey = function(o){
911 * See the <code>{@link #baseParams corresponding configuration option}</code>
912 * for a description of this property.
913 * To modify this property see <code>{@link #setBaseParam}</code>.
916 this.baseParams = {};
918 // temporary removed-records cache
921 if(config && config.data){
922 this.inlineData = config.data;
926 Ext.apply(this, config);
928 this.paramNames = Ext.applyIf(this.paramNames || {}, this.defaultParamNames);
930 if(this.url && !this.proxy){
931 this.proxy = new Ext.data.HttpProxy({url: this.url});
933 // If Store is RESTful, so too is the DataProxy
934 if (this.restful === true && this.proxy) {
935 // When operating RESTfully, a unique transaction is generated for each record.
937 Ext.data.Api.restify(this.proxy);
940 if(this.reader){ // reader passed
941 if(!this.recordType){
942 this.recordType = this.reader.recordType;
944 if(this.reader.onMetaChange){
945 //this.reader.onMetaChange = this.onMetaChange.createDelegate(this);
946 this.reader.onMetaChange = this.reader.onMetaChange.createSequence(this.onMetaChange, this);
948 if (this.writer) { // writer passed
949 this.writer.meta = this.reader.meta;
950 this.pruneModifiedRecords = true;
955 * The {@link Ext.data.Record Record} constructor as supplied to (or created by) the
956 * {@link Ext.data.DataReader Reader}. Read-only.
957 * <p>If the Reader was constructed by passing in an Array of {@link Ext.data.Field} definition objects,
958 * instead of a Record constructor, it will implicitly create a Record constructor from that Array (see
959 * {@link Ext.data.Record}.{@link Ext.data.Record#create create} for additional details).</p>
960 * <p>This property may be used to create new Records of the type held in this Store, for example:</p><pre><code>
961 // create the data store
962 var store = new Ext.data.ArrayStore({
966 {name: 'price', type: 'float'},
967 {name: 'change', type: 'float'},
968 {name: 'pctChange', type: 'float'},
969 {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
972 store.loadData(myData);
975 var grid = new Ext.grid.EditorGridPanel({
977 colModel: new Ext.grid.ColumnModel({
979 {id:'company', header: 'Company', width: 160, dataIndex: 'company'},
980 {header: 'Price', renderer: 'usMoney', dataIndex: 'price'},
981 {header: 'Change', renderer: change, dataIndex: 'change'},
982 {header: '% Change', renderer: pctChange, dataIndex: 'pctChange'},
983 {header: 'Last Updated', width: 85,
984 renderer: Ext.util.Format.dateRenderer('m/d/Y'),
985 dataIndex: 'lastChange'}
992 autoExpandColumn: 'company', // match the id specified in the column model
998 handler : function(){
1001 company: 'New Company',
1002 lastChange: (new Date()).clearTime(),
1006 var recId = 3; // provide unique id
1007 var p = new store.recordType(defaultData, recId); // create new record
1009 store.{@link #insert}(0, p); // insert a new record into the store (also see {@link #add})
1010 grid.startEditing(0, 0);
1015 * @property recordType
1019 if(this.recordType){
1021 * A {@link Ext.util.MixedCollection MixedCollection} containing the defined {@link Ext.data.Field Field}s
1022 * for the {@link Ext.data.Record Records} stored in this Store. Read-only.
1024 * @type Ext.util.MixedCollection
1026 this.fields = this.recordType.prototype.fields;
1032 * @event datachanged
1033 * Fires when the data cache has changed in a bulk manner (e.g., it has been sorted, filtered, etc.) and a
1034 * widget that is using this Store as a Record cache should refresh its view.
1035 * @param {Store} this
1040 * Fires when this store's reader provides new metadata (fields). This is currently only supported for JsonReaders.
1041 * @param {Store} this
1042 * @param {Object} meta The JSON metadata
1047 * Fires when Records have been {@link #add}ed to the Store
1048 * @param {Store} this
1049 * @param {Ext.data.Record[]} records The array of Records added
1050 * @param {Number} index The index at which the record(s) were added
1055 * Fires when a Record has been {@link #remove}d from the Store
1056 * @param {Store} this
1057 * @param {Ext.data.Record} record The Record that was removed
1058 * @param {Number} index The index at which the record was removed
1063 * Fires when a Record has been updated
1064 * @param {Store} this
1065 * @param {Ext.data.Record} record The Record that was updated
1066 * @param {String} operation The update operation being performed. Value may be one of:
1068 Ext.data.Record.EDIT
1069 Ext.data.Record.REJECT
1070 Ext.data.Record.COMMIT
1076 * Fires when the data cache has been cleared.
1077 * @param {Store} this
1078 * @param {Record[]} The records that were cleared.
1083 * <p>Fires if an exception occurs in the Proxy during a remote request.
1084 * This event is relayed through the corresponding {@link Ext.data.DataProxy}.
1085 * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
1086 * for additional details.
1087 * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
1093 * Fires before a request is made for a new data object. If the beforeload handler returns
1094 * <tt>false</tt> the {@link #load} action will be canceled.
1095 * @param {Store} this
1096 * @param {Object} options The loading options that were specified (see {@link #load} for details)
1101 * Fires after a new set of Records has been loaded.
1102 * @param {Store} this
1103 * @param {Ext.data.Record[]} records The Records that were loaded
1104 * @param {Object} options The loading options that were specified (see {@link #load} for details)
1108 * @event loadexception
1109 * <p>This event is <b>deprecated</b> in favor of the catch-all <b><code>{@link #exception}</code></b>
1110 * event instead.</p>
1111 * <p>This event is relayed through the corresponding {@link Ext.data.DataProxy}.
1112 * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
1113 * for additional details.
1114 * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
1119 * @event beforewrite
1120 * @param {Ext.data.Store} store
1121 * @param {String} action [Ext.data.Api.actions.create|update|destroy]
1122 * @param {Record/Array[Record]} rs
1123 * @param {Object} options The loading options that were specified. Edit <code>options.params</code> to add Http parameters to the request. (see {@link #save} for details)
1124 * @param {Object} arg The callback's arg object passed to the {@link #request} function
1129 * Fires if the server returns 200 after an Ext.data.Api.actions CRUD action.
1130 * Success of the action is determined in the <code>result['successProperty']</code>property (<b>NOTE</b> for RESTful stores,
1131 * a simple 20x response is sufficient for the actions "destroy" and "update". The "create" action should should return 200 along with a database pk).
1132 * @param {Ext.data.Store} store
1133 * @param {String} action [Ext.data.Api.actions.create|update|destroy]
1134 * @param {Object} result The 'data' picked-out out of the response for convenience.
1135 * @param {Ext.Direct.Transaction} res
1136 * @param {Record/Record[]} rs Store's records, the subject(s) of the write-action
1142 this.relayEvents(this.proxy, ['loadexception', 'exception']);
1144 // With a writer set for the Store, we want to listen to add/remove events to remotely create/destroy records.
1148 add: this.createRecords,
1149 remove: this.destroyRecord,
1150 update: this.updateRecord,
1155 this.sortToggle = {};
1157 this.setDefaultSort(this.sortField, this.sortDir);
1158 }else if(this.sortInfo){
1159 this.setDefaultSort(this.sortInfo.field, this.sortInfo.direction);
1162 Ext.data.Store.superclass.constructor.call(this);
1165 this.storeId = this.id;
1169 Ext.StoreMgr.register(this);
1171 if(this.inlineData){
1172 this.loadData(this.inlineData);
1173 delete this.inlineData;
1174 }else if(this.autoLoad){
1175 this.load.defer(10, this, [
1176 typeof this.autoLoad == 'object' ?
1177 this.autoLoad : undefined]);
1180 Ext.extend(Ext.data.Store, Ext.util.Observable, {
1182 * @cfg {String} storeId If passed, the id to use to register with the <b>{@link Ext.StoreMgr StoreMgr}</b>.
1183 * <p><b>Note</b>: if a (deprecated) <tt>{@link #id}</tt> is specified it will supersede the <tt>storeId</tt>
1187 * @cfg {String} url If a <tt>{@link #proxy}</tt> is not specified the <tt>url</tt> will be used to
1188 * implicitly configure a {@link Ext.data.HttpProxy HttpProxy} if an <tt>url</tt> is specified.
1189 * Typically this option, or the <code>{@link #data}</code> option will be specified.
1192 * @cfg {Boolean/Object} autoLoad If <tt>{@link #data}</tt> is not specified, and if <tt>autoLoad</tt>
1193 * is <tt>true</tt> or an <tt>Object</tt>, this store's {@link #load} method is automatically called
1194 * after creation. If the value of <tt>autoLoad</tt> is an <tt>Object</tt>, this <tt>Object</tt> will
1195 * be passed to the store's {@link #load} method.
1198 * @cfg {Ext.data.DataProxy} proxy The {@link Ext.data.DataProxy DataProxy} object which provides
1199 * access to a data object. See <code>{@link #url}</code>.
1202 * @cfg {Array} data An inline data object readable by the <code>{@link #reader}</code>.
1203 * Typically this option, or the <code>{@link #url}</code> option will be specified.
1206 * @cfg {Ext.data.DataReader} reader The {@link Ext.data.DataReader Reader} object which processes the
1207 * data object and returns an Array of {@link Ext.data.Record} objects which are cached keyed by their
1208 * <b><tt>{@link Ext.data.Record#id id}</tt></b> property.
1211 * @cfg {Ext.data.DataWriter} writer
1212 * <p>The {@link Ext.data.DataWriter Writer} object which processes a record object for being written
1213 * to the server-side database.</p>
1214 * <br><p>When a writer is installed into a Store the {@link #add}, {@link #remove}, and {@link #update}
1215 * events on the store are monitored in order to remotely {@link #createRecords create records},
1216 * {@link #destroyRecord destroy records}, or {@link #updateRecord update records}.</p>
1217 * <br><p>The proxy for this store will relay any {@link #writexception} events to this store.</p>
1218 * <br><p>Sample implementation:
1220 var writer = new {@link Ext.data.JsonWriter}({
1222 writeAllFields: true // write all fields, not just those that changed
1225 // Typical Store collecting the Proxy, Reader and Writer together.
1226 var store = new Ext.data.Store({
1231 writer: writer, // <-- plug a DataWriter into the store just as you would a Reader
1233 autoSave: false // <-- false to delay executing create, update, destroy requests
1234 // until specifically told to do so.
1240 * @cfg {Object} baseParams
1241 * <p>An object containing properties which are to be sent as parameters
1242 * for <i>every</i> HTTP request.</p>
1243 * <p>Parameters are encoded as standard HTTP parameters using {@link Ext#urlEncode}.</p>
1244 * <p><b>Note</b>: <code>baseParams</code> may be superseded by any <code>params</code>
1245 * specified in a <code>{@link #load}</code> request, see <code>{@link #load}</code>
1246 * for more details.</p>
1247 * This property may be modified after creation using the <code>{@link #setBaseParam}</code>
1252 * @cfg {Object} sortInfo A config object to specify the sort order in the request of a Store's
1253 * {@link #load} operation. Note that for local sorting, the <tt>direction</tt> property is
1254 * case-sensitive. See also {@link #remoteSort} and {@link #paramNames}.
1255 * For example:<pre><code>
1258 direction: 'ASC' // or 'DESC' (case sensitive for local sorting)
1263 * @cfg {boolean} remoteSort <tt>true</tt> if sorting is to be handled by requesting the <tt>{@link #proxy Proxy}</tt>
1264 * to provide a refreshed version of the data object in sorted order, as opposed to sorting the Record cache
1265 * in place (defaults to <tt>false</tt>).
1266 * <p>If <tt>remoteSort</tt> is <tt>true</tt>, then clicking on a {@link Ext.grid.Column Grid Column}'s
1267 * {@link Ext.grid.Column#header header} causes the current page to be requested from the server appending
1268 * the following two parameters to the <b><tt>{@link #load params}</tt></b>:<div class="mdetail-params"><ul>
1269 * <li><b><tt>sort</tt></b> : String<p class="sub-desc">The <tt>name</tt> (as specified in the Record's
1270 * {@link Ext.data.Field Field definition}) of the field to sort on.</p></li>
1271 * <li><b><tt>dir</tt></b> : String<p class="sub-desc">The direction of the sort, 'ASC' or 'DESC' (case-sensitive).</p></li>
1277 * @cfg {Boolean} autoDestroy <tt>true</tt> to destroy the store when the component the store is bound
1278 * to is destroyed (defaults to <tt>false</tt>).
1279 * <p><b>Note</b>: this should be set to true when using stores that are bound to only 1 component.</p>
1281 autoDestroy : false,
1284 * @cfg {Boolean} pruneModifiedRecords <tt>true</tt> to clear all modified record information each time
1285 * the store is loaded or when a record is removed (defaults to <tt>false</tt>). See {@link #getModifiedRecords}
1286 * for the accessor method to retrieve the modified records.
1288 pruneModifiedRecords : false,
1291 * Contains the last options object used as the parameter to the {@link #load} method. See {@link #load}
1292 * for the details of what this may contain. This may be useful for accessing any params which were used
1293 * to load the current Record cache.
1299 * @cfg {Boolean} autoSave
1300 * <p>Defaults to <tt>true</tt> causing the store to automatically {@link #save} records to
1301 * the server when a record is modified (ie: becomes 'dirty'). Specify <tt>false</tt> to manually call {@link #save}
1302 * to send all modifiedRecords to the server.</p>
1303 * <br><p><b>Note</b>: each CRUD action will be sent as a separate request.</p>
1308 * @cfg {Boolean} batch
1309 * <p>Defaults to <tt>true</tt> (unless <code>{@link #restful}:true</code>). Multiple
1310 * requests for each CRUD action (CREATE, READ, UPDATE and DESTROY) will be combined
1311 * and sent as one transaction. Only applies when <code>{@link #autoSave}</code> is set
1312 * to <tt>false</tt>.</p>
1313 * <br><p>If Store is RESTful, the DataProxy is also RESTful, and a unique transaction is
1314 * generated for each record.</p>
1319 * @cfg {Boolean} restful
1320 * Defaults to <tt>false</tt>. Set to <tt>true</tt> to have the Store and the set
1321 * Proxy operate in a RESTful manner. The store will automatically generate GET, POST,
1322 * PUT and DELETE requests to the server. The HTTP method used for any given CRUD
1323 * action is described in {@link Ext.data.Api#restActions}. For additional information
1324 * see {@link Ext.data.DataProxy#restful}.
1325 * <p><b>Note</b>: if <code>{@link #restful}:true</code> <code>batch</code> will
1326 * internally be set to <tt>false</tt>.</p>
1331 * @cfg {Object} paramNames
1332 * <p>An object containing properties which specify the names of the paging and
1333 * sorting parameters passed to remote servers when loading blocks of data. By default, this
1334 * object takes the following form:</p><pre><code>
1336 start : 'start', // The parameter name which specifies the start row
1337 limit : 'limit', // The parameter name which specifies number of rows to return
1338 sort : 'sort', // The parameter name which specifies the column to sort on
1339 dir : 'dir' // The parameter name which specifies the sort direction
1342 * <p>The server must produce the requested data block upon receipt of these parameter names.
1343 * If different parameter names are required, this property can be overriden using a configuration
1345 * <p>A {@link Ext.PagingToolbar PagingToolbar} bound to this Store uses this property to determine
1346 * the parameter names to use in its {@link #load requests}.
1348 paramNames : undefined,
1351 * @cfg {Object} defaultParamNames
1352 * Provides the default values for the {@link #paramNames} property. To globally modify the parameters
1353 * for all stores, this object should be changed on the store prototype.
1355 defaultParamNames : {
1363 * Destroys the store.
1365 destroy : function(){
1366 if(!this.isDestroyed){
1368 Ext.StoreMgr.unregister(this);
1372 Ext.destroy(this.proxy);
1373 this.reader = this.writer = null;
1374 this.purgeListeners();
1375 this.isDestroyed = true;
1380 * Add Records to the Store and fires the {@link #add} event. To add Records
1381 * to the store from a remote source use <code>{@link #load}({add:true})</code>.
1382 * See also <code>{@link #recordType}</code> and <code>{@link #insert}</code>.
1383 * @param {Ext.data.Record[]} records An Array of Ext.data.Record objects
1384 * to add to the cache. See {@link #recordType}.
1386 add : function(records){
1387 records = [].concat(records);
1388 if(records.length < 1){
1391 for(var i = 0, len = records.length; i < len; i++){
1392 records[i].join(this);
1394 var index = this.data.length;
1395 this.data.addAll(records);
1397 this.snapshot.addAll(records);
1399 this.fireEvent('add', this, records, index);
1403 * (Local sort only) Inserts the passed Record into the Store at the index where it
1404 * should go based on the current sort information.
1405 * @param {Ext.data.Record} record
1407 addSorted : function(record){
1408 var index = this.findInsertIndex(record);
1409 this.insert(index, record);
1413 * Remove a Record from the Store and fires the {@link #remove} event.
1414 * @param {Ext.data.Record} record The Ext.data.Record object to remove from the cache.
1416 remove : function(record){
1417 var index = this.data.indexOf(record);
1420 this.data.removeAt(index);
1421 if(this.pruneModifiedRecords){
1422 this.modified.remove(record);
1425 this.snapshot.remove(record);
1427 this.fireEvent('remove', this, record, index);
1432 * Remove a Record from the Store at the specified index. Fires the {@link #remove} event.
1433 * @param {Number} index The index of the record to remove.
1435 removeAt : function(index){
1436 this.remove(this.getAt(index));
1440 * Remove all Records from the Store and fires the {@link #clear} event.
1442 removeAll : function(){
1444 this.each(function(rec){
1449 this.snapshot.clear();
1451 if(this.pruneModifiedRecords){
1454 this.fireEvent('clear', this, items);
1458 onClear: function(store, records){
1459 Ext.each(records, function(rec, index){
1460 this.destroyRecord(this, rec, index);
1465 * Inserts Records into the Store at the given index and fires the {@link #add} event.
1466 * See also <code>{@link #add}</code> and <code>{@link #addSorted}</code>.
1467 * @param {Number} index The start index at which to insert the passed Records.
1468 * @param {Ext.data.Record[]} records An Array of Ext.data.Record objects to add to the cache.
1470 insert : function(index, records){
1471 records = [].concat(records);
1472 for(var i = 0, len = records.length; i < len; i++){
1473 this.data.insert(index, records[i]);
1474 records[i].join(this);
1476 this.fireEvent('add', this, records, index);
1480 * Get the index within the cache of the passed Record.
1481 * @param {Ext.data.Record} record The Ext.data.Record object to find.
1482 * @return {Number} The index of the passed Record. Returns -1 if not found.
1484 indexOf : function(record){
1485 return this.data.indexOf(record);
1489 * Get the index within the cache of the Record with the passed id.
1490 * @param {String} id The id of the Record to find.
1491 * @return {Number} The index of the Record. Returns -1 if not found.
1493 indexOfId : function(id){
1494 return this.data.indexOfKey(id);
1498 * Get the Record with the specified id.
1499 * @param {String} id The id of the Record to find.
1500 * @return {Ext.data.Record} The Record with the passed id. Returns undefined if not found.
1502 getById : function(id){
1503 return this.data.key(id);
1507 * Get the Record at the specified index.
1508 * @param {Number} index The index of the Record to find.
1509 * @return {Ext.data.Record} The Record at the passed index. Returns undefined if not found.
1511 getAt : function(index){
1512 return this.data.itemAt(index);
1516 * Returns a range of Records between specified indices.
1517 * @param {Number} startIndex (optional) The starting index (defaults to 0)
1518 * @param {Number} endIndex (optional) The ending index (defaults to the last Record in the Store)
1519 * @return {Ext.data.Record[]} An array of Records
1521 getRange : function(start, end){
1522 return this.data.getRange(start, end);
1526 storeOptions : function(o){
1527 o = Ext.apply({}, o);
1530 this.lastOptions = o;
1534 clearData: function(){
1535 this.data.each(function(rec) {
1542 * <p>Loads the Record cache from the configured <tt>{@link #proxy}</tt> using the configured <tt>{@link #reader}</tt>.</p>
1543 * <br><p>Notes:</p><div class="mdetail-params"><ul>
1544 * <li><b><u>Important</u></b>: loading is asynchronous! This call will return before the new data has been
1545 * loaded. To perform any post-processing where information from the load call is required, specify
1546 * the <tt>callback</tt> function to be called, or use a {@link Ext.util.Observable#listeners a 'load' event handler}.</li>
1547 * <li>If using {@link Ext.PagingToolbar remote paging}, the first load call must specify the <tt>start</tt> and <tt>limit</tt>
1548 * properties in the <code>options.params</code> property to establish the initial position within the
1549 * dataset, and the number of Records to cache on each read from the Proxy.</li>
1550 * <li>If using {@link #remoteSort remote sorting}, the configured <code>{@link #sortInfo}</code>
1551 * will be automatically included with the posted parameters according to the specified
1552 * <code>{@link #paramNames}</code>.</li>
1554 * @param {Object} options An object containing properties which control loading options:<ul>
1555 * <li><b><tt>params</tt></b> :Object<div class="sub-desc"><p>An object containing properties to pass as HTTP
1556 * parameters to a remote data source. <b>Note</b>: <code>params</code> will override any
1557 * <code>{@link #baseParams}</code> of the same name.</p>
1558 * <p>Parameters are encoded as standard HTTP parameters using {@link Ext#urlEncode}.</p></div></li>
1559 * <li><b><tt>callback</tt></b> : Function<div class="sub-desc"><p>A function to be called after the Records
1560 * have been loaded. The <tt>callback</tt> is called after the load event and is passed the following arguments:<ul>
1561 * <li><tt>r</tt> : Ext.data.Record[]</li>
1562 * <li><tt>options</tt>: Options object from the load call</li>
1563 * <li><tt>success</tt>: Boolean success indicator</li></ul></p></div></li>
1564 * <li><b><tt>scope</tt></b> : Object<div class="sub-desc"><p>Scope with which to call the callback (defaults
1565 * to the Store object)</p></div></li>
1566 * <li><b><tt>add</tt></b> : Boolean<div class="sub-desc"><p>Indicator to append loaded records rather than
1567 * replace the current cache. <b>Note</b>: see note for <tt>{@link #loadData}</tt></p></div></li>
1569 * @return {Boolean} If the <i>developer</i> provided <tt>{@link #beforeload}</tt> event handler returns
1570 * <tt>false</tt>, the load call will abort and will return <tt>false</tt>; otherwise will return <tt>true</tt>.
1572 load : function(options) {
1573 options = options || {};
1574 this.storeOptions(options);
1575 if(this.sortInfo && this.remoteSort){
1576 var pn = this.paramNames;
1577 options.params = options.params || {};
1578 options.params[pn.sort] = this.sortInfo.field;
1579 options.params[pn.dir] = this.sortInfo.direction;
1582 return this.execute('read', null, options); // <-- null represents rs. No rs for load actions.
1584 this.handleException(e);
1590 * updateRecord Should not be used directly. This method will be called automatically if a Writer is set.
1591 * Listens to 'update' event.
1592 * @param {Object} store
1593 * @param {Object} record
1594 * @param {Object} action
1597 updateRecord : function(store, record, action) {
1598 if (action == Ext.data.Record.EDIT && this.autoSave === true && (!record.phantom || (record.phantom && record.isValid))) {
1604 * Should not be used directly. Store#add will call this automatically if a Writer is set
1605 * @param {Object} store
1606 * @param {Object} rs
1607 * @param {Object} index
1610 createRecords : function(store, rs, index) {
1611 for (var i = 0, len = rs.length; i < len; i++) {
1612 if (rs[i].phantom && rs[i].isValid()) {
1613 rs[i].markDirty(); // <-- Mark new records dirty
1614 this.modified.push(rs[i]); // <-- add to modified
1617 if (this.autoSave === true) {
1623 * Destroys a record or records. Should not be used directly. It's called by Store#remove if a Writer is set.
1624 * @param {Store} this
1625 * @param {Ext.data.Record/Ext.data.Record[]}
1626 * @param {Number} index
1629 destroyRecord : function(store, record, index) {
1630 if (this.modified.indexOf(record) != -1) { // <-- handled already if @cfg pruneModifiedRecords == true
1631 this.modified.remove(record);
1633 if (!record.phantom) {
1634 this.removed.push(record);
1636 // since the record has already been removed from the store but the server request has not yet been executed,
1637 // must keep track of the last known index this record existed. If a server error occurs, the record can be
1638 // put back into the store. @see Store#createCallback where the record is returned when response status === false
1639 record.lastIndex = index;
1641 if (this.autoSave === true) {
1648 * This method should generally not be used directly. This method is called internally
1649 * by {@link #load}, or if a Writer is set will be called automatically when {@link #add},
1650 * {@link #remove}, or {@link #update} events fire.
1651 * @param {String} action Action name ('read', 'create', 'update', or 'destroy')
1652 * @param {Record/Record[]} rs
1653 * @param {Object} options
1657 execute : function(action, rs, options) {
1658 // blow up if action not Ext.data.CREATE, READ, UPDATE, DESTROY
1659 if (!Ext.data.Api.isAction(action)) {
1660 throw new Ext.data.Api.Error('execute', action);
1662 // make sure options has a params key
1663 options = Ext.applyIf(options||{}, {
1667 // have to separate before-events since load has a different signature than create,destroy and save events since load does not
1668 // include the rs (record resultset) parameter. Capture return values from the beforeaction into doRequest flag.
1669 var doRequest = true;
1671 if (action === 'read') {
1672 Ext.applyIf(options.params, this.baseParams);
1673 doRequest = this.fireEvent('beforeload', this, options);
1676 // if Writer is configured as listful, force single-record rs to be [{}] instead of {}
1677 // TODO Move listful rendering into DataWriter where the @cfg is defined. Should be easy now.
1678 if (this.writer.listful === true && this.restful !== true) {
1679 rs = (Ext.isArray(rs)) ? rs : [rs];
1681 // if rs has just a single record, shift it off so that Writer writes data as '{}' rather than '[{}]'
1682 else if (Ext.isArray(rs) && rs.length == 1) {
1685 // Write the action to options.params
1686 if ((doRequest = this.fireEvent('beforewrite', this, action, rs, options)) !== false) {
1687 this.writer.write(action, options.params, rs);
1690 if (doRequest !== false) {
1691 // Send request to proxy.
1692 var params = Ext.apply({}, options.params, this.baseParams);
1693 if (this.writer && this.proxy.url && !this.proxy.restful && !Ext.data.Api.hasUniqueUrl(this.proxy, action)) {
1694 params.xaction = action; // <-- really old, probaby unecessary.
1696 // Note: Up until this point we've been dealing with 'action' as a key from Ext.data.Api.actions.
1697 // We'll flip it now and send the value into DataProxy#request, since it's the value which maps to
1698 // the user's configured DataProxy#api
1699 this.proxy.request(Ext.data.Api.actions[action], rs, params, this.reader, this.createCallback(action, rs), this, options);
1705 * Saves all pending changes to the store. If the commensurate Ext.data.Api.actions action is not configured, then
1706 * the configured <code>{@link #url}</code> will be used.
1709 * --------------- --------------------
1710 * removed records Ext.data.Api.actions.destroy
1711 * phantom records Ext.data.Api.actions.create
1712 * {@link #getModifiedRecords modified records} Ext.data.Api.actions.update
1714 * @TODO: Create extensions of Error class and send associated Record with thrown exceptions.
1715 * e.g.: Ext.data.DataReader.Error or Ext.data.Error or Ext.data.DataProxy.Error, etc.
1719 throw new Ext.data.Store.Error('writer-undefined');
1722 // DESTROY: First check for removed records. Records in this.removed are guaranteed non-phantoms. @see Store#remove
1723 if (this.removed.length) {
1724 this.doTransaction('destroy', this.removed);
1727 // Check for modified records. Use a copy so Store#rejectChanges will work if server returns error.
1728 var rs = [].concat(this.getModifiedRecords());
1729 if (!rs.length) { // Bail-out if empty...
1733 // CREATE: Next check for phantoms within rs. splice-off and execute create.
1735 for (var i = rs.length-1; i >= 0; i--) {
1736 if (rs[i].phantom === true) {
1737 var rec = rs.splice(i, 1).shift();
1738 if (rec.isValid()) {
1741 } else if (!rs[i].isValid()) { // <-- while we're here, splice-off any !isValid real records
1745 // If we have valid phantoms, create them...
1746 if (phantoms.length) {
1747 this.doTransaction('create', phantoms);
1750 // UPDATE: And finally, if we're still here after splicing-off phantoms and !isValid real records, update the rest...
1752 this.doTransaction('update', rs);
1757 // private. Simply wraps call to Store#execute in try/catch. Defers to Store#handleException on error. Loops if batch: false
1758 doTransaction : function(action, rs) {
1759 function transaction(records) {
1761 this.execute(action, records);
1763 this.handleException(e);
1766 if (this.batch === false) {
1767 for (var i = 0, len = rs.length; i < len; i++) {
1768 transaction.call(this, rs[i]);
1771 transaction.call(this, rs);
1775 // @private callback-handler for remote CRUD actions
1776 // Do not override -- override loadRecords, onCreateRecords, onDestroyRecords and onUpdateRecords instead.
1777 createCallback : function(action, rs) {
1778 var actions = Ext.data.Api.actions;
1779 return (action == 'read') ? this.loadRecords : function(data, response, success) {
1780 // calls: onCreateRecords | onUpdateRecords | onDestroyRecords
1781 this['on' + Ext.util.Format.capitalize(action) + 'Records'](success, rs, [].concat(data));
1782 // If success === false here, exception will have been called in DataProxy
1783 if (success === true) {
1784 this.fireEvent('write', this, action, data, response, rs);
1789 // Clears records from modified array after an exception event.
1790 // NOTE: records are left marked dirty. Do we want to commit them even though they were not updated/realized?
1791 // TODO remove this method?
1792 clearModified : function(rs) {
1793 if (Ext.isArray(rs)) {
1794 for (var n=rs.length-1;n>=0;n--) {
1795 this.modified.splice(this.modified.indexOf(rs[n]), 1);
1798 this.modified.splice(this.modified.indexOf(rs), 1);
1802 // remap record ids in MixedCollection after records have been realized. @see Store#onCreateRecords, @see DataReader#realize
1803 reMap : function(record) {
1804 if (Ext.isArray(record)) {
1805 for (var i = 0, len = record.length; i < len; i++) {
1806 this.reMap(record[i]);
1809 delete this.data.map[record._phid];
1810 this.data.map[record.id] = record;
1811 var index = this.data.keys.indexOf(record._phid);
1812 this.data.keys.splice(index, 1, record.id);
1813 delete record._phid;
1817 // @protected onCreateRecord proxy callback for create action
1818 onCreateRecords : function(success, rs, data) {
1819 if (success === true) {
1821 this.reader.realize(rs, data);
1825 this.handleException(e);
1826 if (Ext.isArray(rs)) {
1827 // Recurse to run back into the try {}. DataReader#realize splices-off the rs until empty.
1828 this.onCreateRecords(success, rs, data);
1834 // @protected, onUpdateRecords proxy callback for update action
1835 onUpdateRecords : function(success, rs, data) {
1836 if (success === true) {
1838 this.reader.update(rs, data);
1840 this.handleException(e);
1841 if (Ext.isArray(rs)) {
1842 // Recurse to run back into the try {}. DataReader#update splices-off the rs until empty.
1843 this.onUpdateRecords(success, rs, data);
1849 // @protected onDestroyRecords proxy callback for destroy action
1850 onDestroyRecords : function(success, rs, data) {
1851 // splice each rec out of this.removed
1852 rs = (rs instanceof Ext.data.Record) ? [rs] : [].concat(rs);
1853 for (var i=0,len=rs.length;i<len;i++) {
1854 this.removed.splice(this.removed.indexOf(rs[i]), 1);
1856 if (success === false) {
1857 // put records back into store if remote destroy fails.
1858 // @TODO: Might want to let developer decide.
1859 for (i=rs.length-1;i>=0;i--) {
1860 this.insert(rs[i].lastIndex, rs[i]); // <-- lastIndex set in Store#destroyRecord
1865 // protected handleException. Possibly temporary until Ext framework has an exception-handler.
1866 handleException : function(e) {
1867 // @see core/Error.js
1872 * <p>Reloads the Record cache from the configured Proxy using the configured {@link Ext.data.Reader Reader} and
1873 * the options from the last load operation performed.</p>
1874 * <p><b>Note</b>: see the Important note in {@link #load}.</p>
1875 * @param {Object} options (optional) An <tt>Object</tt> containing {@link #load loading options} which may
1876 * override the options used in the last {@link #load} operation. See {@link #load} for details (defaults to
1877 * <tt>null</tt>, in which case the {@link #lastOptions} are used).
1879 reload : function(options){
1880 this.load(Ext.applyIf(options||{}, this.lastOptions));
1884 // Called as a callback by the Reader during a load operation.
1885 loadRecords : function(o, options, success){
1886 if(!o || success === false){
1887 if(success !== false){
1888 this.fireEvent('load', this, [], options);
1890 if(options.callback){
1891 options.callback.call(options.scope || this, [], options, false, o);
1895 var r = o.records, t = o.totalRecords || r.length;
1896 if(!options || options.add !== true){
1897 if(this.pruneModifiedRecords){
1900 for(var i = 0, len = r.length; i < len; i++){
1904 this.data = this.snapshot;
1905 delete this.snapshot;
1908 this.data.addAll(r);
1909 this.totalLength = t;
1911 this.fireEvent('datachanged', this);
1913 this.totalLength = Math.max(t, this.data.length+r.length);
1916 this.fireEvent('load', this, r, options);
1917 if(options.callback){
1918 options.callback.call(options.scope || this, r, options, true);
1923 * Loads data from a passed data block and fires the {@link #load} event. A {@link Ext.data.Reader Reader}
1924 * which understands the format of the data must have been configured in the constructor.
1925 * @param {Object} data The data block from which to read the Records. The format of the data expected
1926 * is dependent on the type of {@link Ext.data.Reader Reader} that is configured and should correspond to
1927 * that {@link Ext.data.Reader Reader}'s <tt>{@link Ext.data.Reader#readRecords}</tt> parameter.
1928 * @param {Boolean} append (Optional) <tt>true</tt> to append the new Records rather the default to replace
1929 * the existing cache.
1930 * <b>Note</b>: that Records in a Store are keyed by their {@link Ext.data.Record#id id}, so added Records
1931 * with ids which are already present in the Store will <i>replace</i> existing Records. Only Records with
1932 * new, unique ids will be added.
1934 loadData : function(o, append){
1935 var r = this.reader.readRecords(o);
1936 this.loadRecords(r, {add: append}, true);
1940 * Gets the number of cached records.
1941 * <p>If using paging, this may not be the total size of the dataset. If the data object
1942 * used by the Reader contains the dataset size, then the {@link #getTotalCount} function returns
1943 * the dataset size. <b>Note</b>: see the Important note in {@link #load}.</p>
1944 * @return {Number} The number of Records in the Store's cache.
1946 getCount : function(){
1947 return this.data.length || 0;
1951 * Gets the total number of records in the dataset as returned by the server.
1952 * <p>If using paging, for this to be accurate, the data object used by the {@link #reader Reader}
1953 * must contain the dataset size. For remote data sources, the value for this property
1954 * (<tt>totalProperty</tt> for {@link Ext.data.JsonReader JsonReader},
1955 * <tt>totalRecords</tt> for {@link Ext.data.XmlReader XmlReader}) shall be returned by a query on the server.
1956 * <b>Note</b>: see the Important note in {@link #load}.</p>
1957 * @return {Number} The number of Records as specified in the data object passed to the Reader
1959 * <p><b>Note</b>: this value is not updated when changing the contents of the Store locally.</p>
1961 getTotalCount : function(){
1962 return this.totalLength || 0;
1966 * Returns an object describing the current sort state of this Store.
1967 * @return {Object} The sort state of the Store. An object with two properties:<ul>
1968 * <li><b>field : String<p class="sub-desc">The name of the field by which the Records are sorted.</p></li>
1969 * <li><b>direction : String<p class="sub-desc">The sort order, 'ASC' or 'DESC' (case-sensitive).</p></li>
1971 * See <tt>{@link #sortInfo}</tt> for additional details.
1973 getSortState : function(){
1974 return this.sortInfo;
1978 applySort : function(){
1979 if(this.sortInfo && !this.remoteSort){
1980 var s = this.sortInfo, f = s.field;
1981 this.sortData(f, s.direction);
1986 sortData : function(f, direction){
1987 direction = direction || 'ASC';
1988 var st = this.fields.get(f).sortType;
1989 var fn = function(r1, r2){
1990 var v1 = st(r1.data[f]), v2 = st(r2.data[f]);
1991 return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
1993 this.data.sort(direction, fn);
1994 if(this.snapshot && this.snapshot != this.data){
1995 this.snapshot.sort(direction, fn);
2000 * Sets the default sort column and order to be used by the next {@link #load} operation.
2001 * @param {String} fieldName The name of the field to sort by.
2002 * @param {String} dir (optional) The sort order, 'ASC' or 'DESC' (case-sensitive, defaults to <tt>'ASC'</tt>)
2004 setDefaultSort : function(field, dir){
2005 dir = dir ? dir.toUpperCase() : 'ASC';
2006 this.sortInfo = {field: field, direction: dir};
2007 this.sortToggle[field] = dir;
2012 * If remote sorting is used, the sort is performed on the server, and the cache is reloaded. If local
2013 * sorting is used, the cache is sorted internally. See also {@link #remoteSort} and {@link #paramNames}.
2014 * @param {String} fieldName The name of the field to sort by.
2015 * @param {String} dir (optional) The sort order, 'ASC' or 'DESC' (case-sensitive, defaults to <tt>'ASC'</tt>)
2017 sort : function(fieldName, dir){
2018 var f = this.fields.get(fieldName);
2023 if(this.sortInfo && this.sortInfo.field == f.name){ // toggle sort dir
2024 dir = (this.sortToggle[f.name] || 'ASC').toggle('ASC', 'DESC');
2029 var st = (this.sortToggle) ? this.sortToggle[f.name] : null;
2030 var si = (this.sortInfo) ? this.sortInfo : null;
2032 this.sortToggle[f.name] = dir;
2033 this.sortInfo = {field: f.name, direction: dir};
2034 if(!this.remoteSort){
2036 this.fireEvent('datachanged', this);
2038 if (!this.load(this.lastOptions)) {
2040 this.sortToggle[f.name] = st;
2050 * Calls the specified function for each of the {@link Ext.data.Record Records} in the cache.
2051 * @param {Function} fn The function to call. The {@link Ext.data.Record Record} is passed as the first parameter.
2052 * Returning <tt>false</tt> aborts and exits the iteration.
2053 * @param {Object} scope (optional) The scope in which to call the function (defaults to the {@link Ext.data.Record Record}).
2055 each : function(fn, scope){
2056 this.data.each(fn, scope);
2060 * Gets all {@link Ext.data.Record records} modified since the last commit. Modified records are
2061 * persisted across load operations (e.g., during paging). <b>Note</b>: deleted records are not
2062 * included. See also <tt>{@link #pruneModifiedRecords}</tt> and
2063 * {@link Ext.data.Record}<tt>{@link Ext.data.Record#markDirty markDirty}.</tt>.
2064 * @return {Ext.data.Record[]} An array of {@link Ext.data.Record Records} containing outstanding
2065 * modifications. To obtain modified fields within a modified record see
2066 *{@link Ext.data.Record}<tt>{@link Ext.data.Record#modified modified}.</tt>.
2068 getModifiedRecords : function(){
2069 return this.modified;
2073 createFilterFn : function(property, value, anyMatch, caseSensitive){
2074 if(Ext.isEmpty(value, false)){
2077 value = this.data.createValueMatcher(value, anyMatch, caseSensitive);
2079 return value.test(r.data[property]);
2084 * Sums the value of <tt>property</tt> for each {@link Ext.data.Record record} between <tt>start</tt>
2085 * and <tt>end</tt> and returns the result.
2086 * @param {String} property A field in each record
2087 * @param {Number} start (optional) The record index to start at (defaults to <tt>0</tt>)
2088 * @param {Number} end (optional) The last record index to include (defaults to length - 1)
2089 * @return {Number} The sum
2091 sum : function(property, start, end){
2092 var rs = this.data.items, v = 0;
2094 end = (end || end === 0) ? end : rs.length-1;
2096 for(var i = start; i <= end; i++){
2097 v += (rs[i].data[property] || 0);
2103 * Filter the {@link Ext.data.Record records} by a specified property.
2104 * @param {String} field A field on your records
2105 * @param {String/RegExp} value Either a string that the field should begin with, or a RegExp to test
2106 * against the field.
2107 * @param {Boolean} anyMatch (optional) <tt>true</tt> to match any part not just the beginning
2108 * @param {Boolean} caseSensitive (optional) <tt>true</tt> for case sensitive comparison
2110 filter : function(property, value, anyMatch, caseSensitive){
2111 var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
2112 return fn ? this.filterBy(fn) : this.clearFilter();
2116 * Filter by a function. The specified function will be called for each
2117 * Record in this Store. If the function returns <tt>true</tt> the Record is included,
2118 * otherwise it is filtered out.
2119 * @param {Function} fn The function to be called. It will be passed the following parameters:<ul>
2120 * <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record}
2121 * to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li>
2122 * <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li>
2124 * @param {Object} scope (optional) The scope of the function (defaults to this)
2126 filterBy : function(fn, scope){
2127 this.snapshot = this.snapshot || this.data;
2128 this.data = this.queryBy(fn, scope||this);
2129 this.fireEvent('datachanged', this);
2133 * Query the records by a specified property.
2134 * @param {String} field A field on your records
2135 * @param {String/RegExp} value Either a string that the field
2136 * should begin with, or a RegExp to test against the field.
2137 * @param {Boolean} anyMatch (optional) True to match any part not just the beginning
2138 * @param {Boolean} caseSensitive (optional) True for case sensitive comparison
2139 * @return {MixedCollection} Returns an Ext.util.MixedCollection of the matched records
2141 query : function(property, value, anyMatch, caseSensitive){
2142 var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
2143 return fn ? this.queryBy(fn) : this.data.clone();
2147 * Query the cached records in this Store using a filtering function. The specified function
2148 * will be called with each record in this Store. If the function returns <tt>true</tt> the record is
2149 * included in the results.
2150 * @param {Function} fn The function to be called. It will be passed the following parameters:<ul>
2151 * <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record}
2152 * to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li>
2153 * <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li>
2155 * @param {Object} scope (optional) The scope of the function (defaults to this)
2156 * @return {MixedCollection} Returns an Ext.util.MixedCollection of the matched records
2158 queryBy : function(fn, scope){
2159 var data = this.snapshot || this.data;
2160 return data.filterBy(fn, scope||this);
2164 * Finds the index of the first matching record in this store by a specific property/value.
2165 * @param {String} property A property on your objects
2166 * @param {String/RegExp} value Either a string that the property value
2167 * should begin with, or a RegExp to test against the property.
2168 * @param {Number} startIndex (optional) The index to start searching at
2169 * @param {Boolean} anyMatch (optional) True to match any part of the string, not just the beginning
2170 * @param {Boolean} caseSensitive (optional) True for case sensitive comparison
2171 * @return {Number} The matched index or -1
2173 find : function(property, value, start, anyMatch, caseSensitive){
2174 var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
2175 return fn ? this.data.findIndexBy(fn, null, start) : -1;
2179 * Finds the index of the first matching record in this store by a specific property/value.
2180 * @param {String} property A property on your objects
2181 * @param {String/RegExp} value The value to match against
2182 * @param {Number} startIndex (optional) The index to start searching at
2183 * @return {Number} The matched index or -1
2185 findExact: function(property, value, start){
2186 return this.data.findIndexBy(function(rec){
2187 return rec.get(property) === value;
2192 * Find the index of the first matching Record in this Store by a function.
2193 * If the function returns <tt>true</tt> it is considered a match.
2194 * @param {Function} fn The function to be called. It will be passed the following parameters:<ul>
2195 * <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record}
2196 * to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li>
2197 * <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li>
2199 * @param {Object} scope (optional) The scope of the function (defaults to this)
2200 * @param {Number} startIndex (optional) The index to start searching at
2201 * @return {Number} The matched index or -1
2203 findBy : function(fn, scope, start){
2204 return this.data.findIndexBy(fn, scope, start);
2208 * Collects unique values for a particular dataIndex from this store.
2209 * @param {String} dataIndex The property to collect
2210 * @param {Boolean} allowNull (optional) Pass true to allow null, undefined or empty string values
2211 * @param {Boolean} bypassFilter (optional) Pass true to collect from all records, even ones which are filtered
2212 * @return {Array} An array of the unique values
2214 collect : function(dataIndex, allowNull, bypassFilter){
2215 var d = (bypassFilter === true && this.snapshot) ?
2216 this.snapshot.items : this.data.items;
2217 var v, sv, r = [], l = {};
2218 for(var i = 0, len = d.length; i < len; i++){
2219 v = d[i].data[dataIndex];
2221 if((allowNull || !Ext.isEmpty(v)) && !l[sv]){
2230 * Revert to a view of the Record cache with no filtering applied.
2231 * @param {Boolean} suppressEvent If <tt>true</tt> the filter is cleared silently without firing the
2232 * {@link #datachanged} event.
2234 clearFilter : function(suppressEvent){
2235 if(this.isFiltered()){
2236 this.data = this.snapshot;
2237 delete this.snapshot;
2238 if(suppressEvent !== true){
2239 this.fireEvent('datachanged', this);
2245 * Returns true if this store is currently filtered
2248 isFiltered : function(){
2249 return this.snapshot && this.snapshot != this.data;
2253 afterEdit : function(record){
2254 if(this.modified.indexOf(record) == -1){
2255 this.modified.push(record);
2257 this.fireEvent('update', this, record, Ext.data.Record.EDIT);
2261 afterReject : function(record){
2262 this.modified.remove(record);
2263 this.fireEvent('update', this, record, Ext.data.Record.REJECT);
2267 afterCommit : function(record){
2268 this.modified.remove(record);
2269 this.fireEvent('update', this, record, Ext.data.Record.COMMIT);
2273 * Commit all Records with {@link #getModifiedRecords outstanding changes}. To handle updates for changes,
2274 * subscribe to the Store's {@link #update update event}, and perform updating when the third parameter is
2275 * Ext.data.Record.COMMIT.
2277 commitChanges : function(){
2278 var m = this.modified.slice(0);
2280 for(var i = 0, len = m.length; i < len; i++){
2286 * {@link Ext.data.Record#reject Reject} outstanding changes on all {@link #getModifiedRecords modified records}.
2288 rejectChanges : function(){
2289 var m = this.modified.slice(0);
2291 for(var i = 0, len = m.length; i < len; i++){
2294 var m = this.removed.slice(0).reverse();
2296 for(var i = 0, len = m.length; i < len; i++){
2297 this.insert(m[i].lastIndex||0, m[i]);
2303 onMetaChange : function(meta){
2304 this.recordType = this.reader.recordType;
2305 this.fields = this.recordType.prototype.fields;
2306 delete this.snapshot;
2307 if(this.reader.meta.sortInfo){
2308 this.sortInfo = this.reader.meta.sortInfo;
2309 }else if(this.sortInfo && !this.fields.get(this.sortInfo.field)){
2310 delete this.sortInfo;
2313 this.writer.meta = this.reader.meta;
2316 this.fireEvent('metachange', this, this.reader.meta);
2320 findInsertIndex : function(record){
2321 this.suspendEvents();
2322 var data = this.data.clone();
2323 this.data.add(record);
2325 var index = this.data.indexOf(record);
2327 this.resumeEvents();
2332 * Set the value for a property name in this store's {@link #baseParams}. Usage:</p><pre><code>
2333 myStore.setBaseParam('foo', {bar:3});
2335 * @param {String} name Name of the property to assign
2336 * @param {Mixed} value Value to assign the <tt>name</tt>d property
2338 setBaseParam : function (name, value){
2339 this.baseParams = this.baseParams || {};
2340 this.baseParams[name] = value;
2344 Ext.reg('store', Ext.data.Store);
2347 * @class Ext.data.Store.Error
2348 * @extends Ext.Error
2349 * Store Error extension.
2350 * @param {String} name
2352 Ext.data.Store.Error = Ext.extend(Ext.Error, {
2353 name: 'Ext.data.Store'
2355 Ext.apply(Ext.data.Store.Error.prototype, {
2357 'writer-undefined' : 'Attempted to execute a write-action without a DataWriter installed.'
2362 * @class Ext.data.Field
2363 * <p>This class encapsulates the field definition information specified in the field definition objects
2364 * passed to {@link Ext.data.Record#create}.</p>
2365 * <p>Developers do not need to instantiate this class. Instances are created by {@link Ext.data.Record.create}
2366 * and cached in the {@link Ext.data.Record#fields fields} property of the created Record constructor's <b>prototype.</b></p>
2368 Ext.data.Field = function(config){
2369 if(typeof config == "string"){
2370 config = {name: config};
2372 Ext.apply(this, config);
2378 var st = Ext.data.SortTypes;
2379 // named sortTypes are supported, here we look them up
2380 if(typeof this.sortType == "string"){
2381 this.sortType = st[this.sortType];
2384 // set default sortType for strings and dates
2388 this.sortType = st.asUCString;
2391 this.sortType = st.asDate;
2394 this.sortType = st.none;
2399 var stripRe = /[\$,%]/g;
2401 // prebuilt conversion function for this field, instead of
2402 // switching every time we're reading a value
2404 var cv, dateFormat = this.dateFormat;
2409 cv = function(v){ return v; };
2412 cv = function(v){ return (v === undefined || v === null) ? '' : String(v); };
2416 return v !== undefined && v !== null && v !== '' ?
2417 parseInt(String(v).replace(stripRe, ""), 10) : '';
2422 return v !== undefined && v !== null && v !== '' ?
2423 parseFloat(String(v).replace(stripRe, ""), 10) : '';
2428 cv = function(v){ return v === true || v === "true" || v == 1; };
2439 if(dateFormat == "timestamp"){
2440 return new Date(v*1000);
2442 if(dateFormat == "time"){
2443 return new Date(parseInt(v, 10));
2445 return Date.parseDate(v, dateFormat);
2447 var parsed = Date.parse(v);
2448 return parsed ? new Date(parsed) : null;
2457 Ext.data.Field.prototype = {
2459 * @cfg {String} name
2460 * The name by which the field is referenced within the Record. This is referenced by, for example,
2461 * the <tt>dataIndex</tt> property in column definition objects passed to {@link Ext.grid.ColumnModel}.
2462 * <p>Note: In the simplest case, if no properties other than <tt>name</tt> are required, a field
2463 * definition may consist of just a String for the field name.</p>
2466 * @cfg {String} type
2467 * (Optional) The data type for conversion to displayable value if <tt>{@link Ext.data.Field#convert convert}</tt>
2468 * has not been specified. Possible values are
2469 * <div class="mdetail-params"><ul>
2470 * <li>auto (Default, implies no conversion)</li>
2475 * <li>date</li></ul></div>
2478 * @cfg {Function} convert
2479 * (Optional) A function which converts the value provided by the Reader into an object that will be stored
2480 * in the Record. It is passed the following parameters:<div class="mdetail-params"><ul>
2481 * <li><b>v</b> : Mixed<div class="sub-desc">The data value as read by the Reader, if undefined will use
2482 * the configured <tt>{@link Ext.data.Field#defaultValue defaultValue}</tt>.</div></li>
2483 * <li><b>rec</b> : Mixed<div class="sub-desc">The data object containing the row as read by the Reader.
2484 * Depending on the Reader type, this could be an Array ({@link Ext.data.ArrayReader ArrayReader}), an object
2485 * ({@link Ext.data.JsonReader JsonReader}), or an XML element ({@link Ext.data.XMLReader XMLReader}).</div></li>
2488 // example of convert function
2489 function fullName(v, record){
2490 return record.name.last + ', ' + record.name.first;
2493 function location(v, record){
2494 return !record.city ? '' : (record.city + ', ' + record.state);
2497 var Dude = Ext.data.Record.create([
2498 {name: 'fullname', convert: fullName},
2499 {name: 'firstname', mapping: 'name.first'},
2500 {name: 'lastname', mapping: 'name.last'},
2501 {name: 'city', defaultValue: 'homeless'},
2503 {name: 'location', convert: location}
2506 // create the data store
2507 var store = new Ext.data.Store({
2508 reader: new Ext.data.JsonReader(
2512 totalProperty: 'total'
2520 name: { first: 'Fat', last: 'Albert' }
2521 // notice no city, state provided in data object
2524 name: { first: 'Barney', last: 'Rubble' },
2525 city: 'Bedrock', state: 'Stoneridge'
2528 name: { first: 'Cliff', last: 'Claven' },
2529 city: 'Boston', state: 'MA'
2535 * @cfg {String} dateFormat
2536 * (Optional) A format string for the {@link Date#parseDate Date.parseDate} function, or "timestamp" if the
2537 * value provided by the Reader is a UNIX timestamp, or "time" if the value provided by the Reader is a
2538 * javascript millisecond timestamp.
2542 * @cfg {Mixed} defaultValue
2543 * (Optional) The default value used <b>when a Record is being created by a {@link Ext.data.Reader Reader}</b>
2544 * when the item referenced by the <tt>{@link Ext.data.Field#mapping mapping}</tt> does not exist in the data
2545 * object (i.e. undefined). (defaults to "")
2549 * @cfg {String/Number} mapping
2550 * <p>(Optional) A path expression for use by the {@link Ext.data.DataReader} implementation
2551 * that is creating the {@link Ext.data.Record Record} to extract the Field value from the data object.
2552 * If the path expression is the same as the field name, the mapping may be omitted.</p>
2553 * <p>The form of the mapping expression depends on the Reader being used.</p>
2554 * <div class="mdetail-params"><ul>
2555 * <li>{@link Ext.data.JsonReader}<div class="sub-desc">The mapping is a string containing the javascript
2556 * expression to reference the data from an element of the data item's {@link Ext.data.JsonReader#root root} Array. Defaults to the field name.</div></li>
2557 * <li>{@link Ext.data.XmlReader}<div class="sub-desc">The mapping is an {@link Ext.DomQuery} path to the data
2558 * item relative to the DOM element that represents the {@link Ext.data.XmlReader#record record}. Defaults to the field name.</div></li>
2559 * <li>{@link Ext.data.ArrayReader}<div class="sub-desc">The mapping is a number indicating the Array index
2560 * of the field's value. Defaults to the field specification's Array position.</div></li>
2562 * <p>If a more complex value extraction strategy is required, then configure the Field with a {@link #convert}
2563 * function. This is passed the whole row object, and may interrogate it in whatever way is necessary in order to
2564 * return the desired data.</p>
2568 * @cfg {Function} sortType
2569 * (Optional) A function which converts a Field's value to a comparable value in order to ensure
2570 * correct sort ordering. Predefined functions are provided in {@link Ext.data.SortTypes}. A custom
2571 * sort example:<pre><code>
2572 // current sort after sort we want
2573 // +-+------+ +-+------+
2574 // |1|First | |1|First |
2575 // |2|Last | |3|Second|
2576 // |3|Second| |2|Last |
2577 // +-+------+ +-+------+
2579 sortType: function(value) {
2580 switch (value.toLowerCase()) // native toLowerCase():
2582 case 'first': return 1;
2583 case 'second': return 2;
2591 * @cfg {String} sortDir
2592 * (Optional) Initial direction to sort (<tt>"ASC"</tt> or <tt>"DESC"</tt>). Defaults to
2597 * @cfg {Boolean} allowBlank
2598 * (Optional) Used for validating a {@link Ext.data.Record record}, defaults to <tt>true</tt>.
2599 * An empty value here will cause {@link Ext.data.Record}.{@link Ext.data.Record#isValid isValid}
2600 * to evaluate to <tt>false</tt>.
2604 * @class Ext.data.DataReader
\r
2605 * Abstract base class for reading structured data from a data source and converting
\r
2606 * it into an object containing {@link Ext.data.Record} objects and metadata for use
\r
2607 * by an {@link Ext.data.Store}. This class is intended to be extended and should not
\r
2608 * be created directly. For existing implementations, see {@link Ext.data.ArrayReader},
\r
2609 * {@link Ext.data.JsonReader} and {@link Ext.data.XmlReader}.
\r
2610 * @constructor Create a new DataReader
\r
2611 * @param {Object} meta Metadata configuration options (implementation-specific).
\r
2612 * @param {Array/Object} recordType
\r
2613 * <p>Either an Array of {@link Ext.data.Field Field} definition objects (which
\r
2614 * will be passed to {@link Ext.data.Record#create}, or a {@link Ext.data.Record Record}
\r
2615 * constructor created using {@link Ext.data.Record#create}.</p>
\r
2617 Ext.data.DataReader = function(meta, recordType){
\r
2619 * This DataReader's configured metadata as passed to the constructor.
\r
2625 * @cfg {Array/Object} fields
\r
2626 * <p>Either an Array of {@link Ext.data.Field Field} definition objects (which
\r
2627 * will be passed to {@link Ext.data.Record#create}, or a {@link Ext.data.Record Record}
\r
2628 * constructor created from {@link Ext.data.Record#create}.</p>
\r
2630 this.recordType = Ext.isArray(recordType) ?
\r
2631 Ext.data.Record.create(recordType) : recordType;
\r
2633 // if recordType defined make sure extraction functions are defined
\r
2634 if (this.recordType){
\r
2635 this.buildExtractors();
\r
2639 Ext.data.DataReader.prototype = {
\r
2641 * @cfg {String} messageProperty [undefined] Optional name of a property within a server-response that represents a user-feedback message.
\r
2644 * Abstract method created in extension's buildExtractors impl.
\r
2646 getTotal: Ext.emptyFn,
\r
2648 * Abstract method created in extension's buildExtractors impl.
\r
2650 getRoot: Ext.emptyFn,
\r
2652 * Abstract method created in extension's buildExtractors impl.
\r
2654 getMessage: Ext.emptyFn,
\r
2656 * Abstract method created in extension's buildExtractors impl.
\r
2658 getSuccess: Ext.emptyFn,
\r
2660 * Abstract method created in extension's buildExtractors impl.
\r
2662 getId: Ext.emptyFn,
\r
2664 * Abstract method, overridden in DataReader extensions such as {@link Ext.data.JsonReader} and {@link Ext.data.XmlReader}
\r
2666 buildExtractors : Ext.emptyFn,
\r
2668 * Abstract method overridden in DataReader extensions such as {@link Ext.data.JsonReader} and {@link Ext.data.XmlReader}
\r
2670 extractData : Ext.emptyFn,
\r
2672 * Abstract method overridden in DataReader extensions such as {@link Ext.data.JsonReader} and {@link Ext.data.XmlReader}
\r
2674 extractValues : Ext.emptyFn,
\r
2677 * Used for un-phantoming a record after a successful database insert. Sets the records pk along with new data from server.
\r
2678 * You <b>must</b> return at least the database pk using the idProperty defined in your DataReader configuration. The incoming
\r
2679 * data from server will be merged with the data in the local record.
\r
2680 * In addition, you <b>must</b> return record-data from the server in the same order received.
\r
2681 * Will perform a commit as well, un-marking dirty-fields. Store's "update" event will be suppressed.
\r
2682 * @param {Record/Record[]} record The phantom record to be realized.
\r
2683 * @param {Object/Object[]} data The new record data to apply. Must include the primary-key from database defined in idProperty field.
\r
2685 realize: function(rs, data){
\r
2686 if (Ext.isArray(rs)) {
\r
2687 for (var i = rs.length - 1; i >= 0; i--) {
\r
2689 if (Ext.isArray(data)) {
\r
2690 this.realize(rs.splice(i,1).shift(), data.splice(i,1).shift());
\r
2693 // weird...rs is an array but data isn't?? recurse but just send in the whole invalid data object.
\r
2694 // the else clause below will detect !this.isData and throw exception.
\r
2695 this.realize(rs.splice(i,1).shift(), data);
\r
2700 // If rs is NOT an array but data IS, see if data contains just 1 record. If so extract it and carry on.
\r
2701 if (Ext.isArray(data) && data.length == 1) {
\r
2702 data = data.shift();
\r
2704 if (!this.isData(data)) {
\r
2705 // TODO: Let exception-handler choose to commit or not rather than blindly rs.commit() here.
\r
2707 throw new Ext.data.DataReader.Error('realize', rs);
\r
2709 rs.phantom = false; // <-- That's what it's all about
\r
2710 rs._phid = rs.id; // <-- copy phantom-id -> _phid, so we can remap in Store#onCreateRecords
\r
2711 rs.id = this.getId(data);
\r
2718 * Used for updating a non-phantom or "real" record's data with fresh data from server after remote-save.
\r
2719 * If returning data from multiple-records after a batch-update, you <b>must</b> return record-data from the server in
\r
2720 * the same order received. Will perform a commit as well, un-marking dirty-fields. Store's "update" event will be
\r
2721 * suppressed as the record receives fresh new data-hash
\r
2722 * @param {Record/Record[]} rs
\r
2723 * @param {Object/Object[]} data
\r
2725 update : function(rs, data) {
\r
2726 if (Ext.isArray(rs)) {
\r
2727 for (var i=rs.length-1; i >= 0; i--) {
\r
2728 if (Ext.isArray(data)) {
\r
2729 this.update(rs.splice(i,1).shift(), data.splice(i,1).shift());
\r
2732 // weird...rs is an array but data isn't?? recurse but just send in the whole data object.
\r
2733 // the else clause below will detect !this.isData and throw exception.
\r
2734 this.update(rs.splice(i,1).shift(), data);
\r
2739 // If rs is NOT an array but data IS, see if data contains just 1 record. If so extract it and carry on.
\r
2740 if (Ext.isArray(data) && data.length == 1) {
\r
2741 data = data.shift();
\r
2743 if (this.isData(data)) {
\r
2744 rs.data = Ext.apply(rs.data, data);
\r
2751 * Returns true if the supplied data-hash <b>looks</b> and quacks like data. Checks to see if it has a key
\r
2752 * corresponding to idProperty defined in your DataReader config containing non-empty pk.
\r
2753 * @param {Object} data
\r
2754 * @return {Boolean}
\r
2756 isData : function(data) {
\r
2757 return (data && Ext.isObject(data) && !Ext.isEmpty(this.getId(data))) ? true : false;
\r
2760 // private function a store will createSequence upon
\r
2761 onMetaChange : function(meta){
\r
2764 this.recordType = Ext.data.Record.create(meta.fields);
\r
2765 this.buildExtractors();
\r
2770 * @class Ext.data.DataReader.Error
\r
2771 * @extends Ext.Error
\r
2772 * General error class for Ext.data.DataReader
\r
2774 Ext.data.DataReader.Error = Ext.extend(Ext.Error, {
\r
2775 constructor : function(message, arg) {
\r
2777 Ext.Error.call(this, message);
\r
2779 name: 'Ext.data.DataReader'
\r
2781 Ext.apply(Ext.data.DataReader.Error.prototype, {
\r
2783 'update': "#update received invalid data from server. Please see docs for DataReader#update and review your DataReader configuration.",
\r
2784 'realize': "#realize was called with invalid remote-data. Please see the docs for DataReader#realize and review your DataReader configuration.",
\r
2785 'invalid-response': "#readResponse received an invalid response from the server."
\r
2791 * Ext.data.Response
\r
2792 * A generic response class to normalize response-handling internally to the framework.
\r
2793 * TODO move to own file, add to jsb.
\r
2795 Ext.data.Response = function(params) {
\r
2796 Ext.apply(this, params);
\r
2798 Ext.data.Response.prototype = {
\r
2800 * @property {String} action {@link Ext.data.Api#actions}
\r
2802 action: undefined,
\r
2804 * @property {Boolean} success
\r
2806 success : undefined,
\r
2808 * @property {String} message
\r
2810 message : undefined,
\r
2812 * @property {Array/Object} data
\r
2816 * @property {Object} raw The raw response returned from server-code
\r
2820 * @property {Ext.data.Record/Ext.data.Record[]} record(s) related to the Request action
\r
2822 records: undefined
\r
2825 * @class Ext.data.DataWriter
2826 * <p>Ext.data.DataWriter facilitates create, update, and destroy actions between
2827 * an Ext.data.Store and a server-side framework. A Writer enabled Store will
2828 * automatically manage the Ajax requests to perform CRUD actions on a Store.</p>
2829 * <p>Ext.data.DataWriter is an abstract base class which is intended to be extended
2830 * and should not be created directly. For existing implementations, see
2831 * {@link Ext.data.JsonWriter}.</p>
2832 * <p>Creating a writer is simple:</p>
2834 var writer = new Ext.data.JsonWriter();
2836 * <p>The proxy for a writer enabled store can be configured with a simple <code>url</code>:</p>
2838 // Create a standard HttpProxy instance.
2839 var proxy = new Ext.data.HttpProxy({
2840 url: 'app.php/users'
2843 * <p>For finer grained control, the proxy may also be configured with an <code>api</code>:</p>
2845 // Use the api specification
2846 var proxy = new Ext.data.HttpProxy({
2848 read : 'app.php/users/read',
2849 create : 'app.php/users/create',
2850 update : 'app.php/users/update',
2851 destroy : 'app.php/users/destroy'
2855 * <p>Creating a Writer enabled store:</p>
2857 var store = new Ext.data.Store({
2863 * @constructor Create a new DataWriter
2864 * @param {Object} meta Metadata configuration options (implementation-specific)
2865 * @param {Object} recordType Either an Array of field definition objects as specified
2866 * in {@link Ext.data.Record#create}, or an {@link Ext.data.Record} object created
2867 * using {@link Ext.data.Record#create}.
2869 Ext.data.DataWriter = function(config){
2870 Ext.apply(this, config);
2872 Ext.data.DataWriter.prototype = {
2875 * @cfg {Boolean} writeAllFields
2876 * <tt>false</tt> by default. Set <tt>true</tt> to have DataWriter return ALL fields of a modified
2877 * record -- not just those that changed.
2878 * <tt>false</tt> to have DataWriter only request modified fields from a record.
2880 writeAllFields : false,
2882 * @cfg {Boolean} listful
2883 * <tt>false</tt> by default. Set <tt>true</tt> to have the DataWriter <b>always</b> write HTTP params as a list,
2884 * even when acting upon a single record.
2886 listful : false, // <-- listful is actually not used internally here in DataWriter. @see Ext.data.Store#execute.
2889 * Writes data in preparation for server-write action. Simply proxies to DataWriter#update, DataWriter#create
2890 * DataWriter#destroy.
2891 * @param {String} action [CREATE|UPDATE|DESTROY]
2892 * @param {Object} params The params-hash to write-to
2893 * @param {Record/Record[]} rs The recordset write.
2895 write : function(action, params, rs) {
2897 renderer = action + 'Record';
2898 // TODO implement @cfg listful here
2899 if (Ext.isArray(rs)) {
2900 Ext.each(rs, function(rec){
2901 data.push(this[renderer](rec));
2904 else if (rs instanceof Ext.data.Record) {
2905 data = this[renderer](rs);
2907 this.render(action, rs, params, data);
2911 * abstract method meant to be overridden by all DataWriter extensions. It's the extension's job to apply the "data" to the "params".
2912 * The data-object provided to render is populated with data according to the meta-info defined in the user's DataReader config,
2913 * @param {String} action [Ext.data.Api.actions.create|read|update|destroy]
2914 * @param {Record[]} rs Store recordset
2915 * @param {Object} params Http params to be sent to server.
2916 * @param {Object} data object populated according to DataReader meta-data.
2918 render : Ext.emptyFn,
2921 * @cfg {Function} updateRecord Abstract method that should be implemented in all subclasses
2922 * (e.g.: {@link Ext.data.JsonWriter#updateRecord JsonWriter.updateRecord}
2924 updateRecord : Ext.emptyFn,
2927 * @cfg {Function} createRecord Abstract method that should be implemented in all subclasses
2928 * (e.g.: {@link Ext.data.JsonWriter#createRecord JsonWriter.createRecord})
2930 createRecord : Ext.emptyFn,
2933 * @cfg {Function} destroyRecord Abstract method that should be implemented in all subclasses
2934 * (e.g.: {@link Ext.data.JsonWriter#destroyRecord JsonWriter.destroyRecord})
2936 destroyRecord : Ext.emptyFn,
2939 * Converts a Record to a hash.
2943 toHash : function(rec) {
2944 var map = rec.fields.map,
2946 raw = (this.writeAllFields === false && rec.phantom === false) ? rec.getChanges() : rec.data,
2948 Ext.iterate(raw, function(prop, value){
2949 if((m = map[prop])){
2950 data[m.mapping ? m.mapping : m.name] = value;
2953 // we don't want to write Ext auto-generated id to hash. Careful not to remove it on Models not having auto-increment pk though.
2954 // We can tell its not auto-increment if the user defined a DataReader field for it *and* that field's value is non-empty.
2955 // we could also do a RegExp here for the Ext.data.Record AUTO_ID prefix.
2957 if (rec.fields.containsKey(this.meta.idProperty) && Ext.isEmpty(rec.data[this.meta.idProperty])) {
2958 delete data[this.meta.idProperty];
2961 data[this.meta.idProperty] = rec.id
2966 * @class Ext.data.DataProxy
\r
2967 * @extends Ext.util.Observable
\r
2968 * <p>Abstract base class for implementations which provide retrieval of unformatted data objects.
\r
2969 * This class is intended to be extended and should not be created directly. For existing implementations,
\r
2970 * see {@link Ext.data.DirectProxy}, {@link Ext.data.HttpProxy}, {@link Ext.data.ScriptTagProxy} and
\r
2971 * {@link Ext.data.MemoryProxy}.</p>
\r
2972 * <p>DataProxy implementations are usually used in conjunction with an implementation of {@link Ext.data.DataReader}
\r
2973 * (of the appropriate type which knows how to parse the data object) to provide a block of
\r
2974 * {@link Ext.data.Records} to an {@link Ext.data.Store}.</p>
\r
2975 * <p>The parameter to a DataProxy constructor may be an {@link Ext.data.Connection} or can also be the
\r
2976 * config object to an {@link Ext.data.Connection}.</p>
\r
2977 * <p>Custom implementations must implement either the <code><b>doRequest</b></code> method (preferred) or the
\r
2978 * <code>load</code> method (deprecated). See
\r
2979 * {@link Ext.data.HttpProxy}.{@link Ext.data.HttpProxy#doRequest doRequest} or
\r
2980 * {@link Ext.data.HttpProxy}.{@link Ext.data.HttpProxy#load load} for additional details.</p>
\r
2981 * <p><b><u>Example 1</u></b></p>
\r
2983 proxy: new Ext.data.ScriptTagProxy({
\r
2984 {@link Ext.data.Connection#url url}: 'http://extjs.com/forum/topics-remote.php'
\r
2987 * <p><b><u>Example 2</u></b></p>
\r
2989 proxy : new Ext.data.HttpProxy({
\r
2990 {@link Ext.data.Connection#method method}: 'GET',
\r
2991 {@link Ext.data.HttpProxy#prettyUrls prettyUrls}: false,
\r
2992 {@link Ext.data.Connection#url url}: 'local/default.php', // see options parameter for {@link Ext.Ajax#request}
\r
2994 // all actions except the following will use above url
\r
2995 create : 'local/new.php',
\r
2996 update : 'local/update.php'
\r
3001 Ext.data.DataProxy = function(conn){
\r
3002 // make sure we have a config object here to support ux proxies.
\r
3003 // All proxies should now send config into superclass constructor.
\r
3004 conn = conn || {};
\r
3006 // This line caused a bug when people use custom Connection object having its own request method.
\r
3007 // http://extjs.com/forum/showthread.php?t=67194. Have to set DataProxy config
\r
3008 //Ext.applyIf(this, conn);
\r
3010 this.api = conn.api;
\r
3011 this.url = conn.url;
\r
3012 this.restful = conn.restful;
\r
3013 this.listeners = conn.listeners;
\r
3016 this.prettyUrls = conn.prettyUrls;
\r
3019 * @cfg {Object} api
\r
3020 * Specific urls to call on CRUD action methods "read", "create", "update" and "destroy".
\r
3021 * Defaults to:<pre><code>
\r
3024 create : undefined,
\r
3025 update : undefined,
\r
3026 destroy : undefined
\r
3029 * <p>The url is built based upon the action being executed <tt>[load|create|save|destroy]</tt>
\r
3030 * using the commensurate <tt>{@link #api}</tt> property, or if undefined default to the
\r
3031 * configured {@link Ext.data.Store}.{@link Ext.data.Store#url url}.</p><br>
\r
3032 * <p>For example:</p>
\r
3035 load : '/controller/load',
\r
3036 create : '/controller/new', // Server MUST return idProperty of new record
\r
3037 save : '/controller/update',
\r
3038 destroy : '/controller/destroy_action'
\r
3041 // Alternatively, one can use the object-form to specify each API-action
\r
3043 load: {url: 'read.php', method: 'GET'},
\r
3044 create: 'create.php',
\r
3045 destroy: 'destroy.php',
\r
3046 save: 'update.php'
\r
3049 * <p>If the specific URL for a given CRUD action is undefined, the CRUD action request
\r
3050 * will be directed to the configured <tt>{@link Ext.data.Connection#url url}</tt>.</p>
\r
3051 * <br><p><b>Note</b>: To modify the URL for an action dynamically the appropriate API
\r
3052 * property should be modified before the action is requested using the corresponding before
\r
3053 * action event. For example to modify the URL associated with the load action:
\r
3055 // modify the url for the action
\r
3058 fn: function (store, options) {
\r
3059 // use <tt>{@link Ext.data.HttpProxy#setUrl setUrl}</tt> to change the URL for *just* this request.
\r
3060 store.proxy.setUrl('changed1.php');
\r
3062 // set optional second parameter to true to make this URL change
\r
3063 // permanent, applying this URL for all subsequent requests.
\r
3064 store.proxy.setUrl('changed1.php', true);
\r
3066 // Altering the proxy API should be done using the public
\r
3067 // method <tt>{@link Ext.data.DataProxy#setApi setApi}</tt>.
\r
3068 store.proxy.setApi('read', 'changed2.php');
\r
3070 // Or set the entire API with a config-object.
\r
3071 // When using the config-object option, you must redefine the <b>entire</b>
\r
3072 // API -- not just a specific action of it.
\r
3073 store.proxy.setApi({
\r
3074 read : 'changed_read.php',
\r
3075 create : 'changed_create.php',
\r
3076 update : 'changed_update.php',
\r
3077 destroy : 'changed_destroy.php'
\r
3088 * @event exception
\r
3089 * <p>Fires if an exception occurs in the Proxy during a remote request. This event is relayed
\r
3090 * through a corresponding {@link Ext.data.Store}.{@link Ext.data.Store#exception exception},
\r
3091 * so any Store instance may observe this event.</p>
\r
3092 * <p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
\r
3093 * through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of exception events from <b>all</b>
\r
3094 * DataProxies by attaching a listener to the Ext.data.Proxy class itself.</p>
\r
3095 * <p>This event can be fired for one of two reasons:</p>
\r
3096 * <div class="mdetail-params"><ul>
\r
3097 * <li>remote-request <b>failed</b> : <div class="sub-desc">
\r
3098 * The server did not return status === 200.
\r
3100 * <li>remote-request <b>succeeded</b> : <div class="sub-desc">
\r
3101 * The remote-request succeeded but the reader could not read the response.
\r
3102 * This means the server returned data, but the configured Reader threw an
\r
3103 * error while reading the response. In this case, this event will be
\r
3104 * raised and the caught error will be passed along into this event.
\r
3107 * <br><p>This event fires with two different contexts based upon the 2nd
\r
3108 * parameter <tt>type [remote|response]</tt>. The first four parameters
\r
3109 * are identical between the two contexts -- only the final two parameters
\r
3111 * @param {DataProxy} this The proxy that sent the request
\r
3112 * @param {String} type
\r
3113 * <p>The value of this parameter will be either <tt>'response'</tt> or <tt>'remote'</tt>.</p>
\r
3114 * <div class="mdetail-params"><ul>
\r
3115 * <li><b><tt>'response'</tt></b> : <div class="sub-desc">
\r
3116 * <p>An <b>invalid</b> response from the server was returned: either 404,
\r
3117 * 500 or the response meta-data does not match that defined in the DataReader
\r
3118 * (e.g.: root, idProperty, successProperty).</p>
\r
3120 * <li><b><tt>'remote'</tt></b> : <div class="sub-desc">
\r
3121 * <p>A <b>valid</b> response was returned from the server having
\r
3122 * successProperty === false. This response might contain an error-message
\r
3123 * sent from the server. For example, the user may have failed
\r
3124 * authentication/authorization or a database validation error occurred.</p>
\r
3127 * @param {String} action Name of the action (see {@link Ext.data.Api#actions}.
\r
3128 * @param {Object} options The options for the action that were specified in the {@link #request}.
\r
3129 * @param {Object} response
\r
3130 * <p>The value of this parameter depends on the value of the <code>type</code> parameter:</p>
\r
3131 * <div class="mdetail-params"><ul>
\r
3132 * <li><b><tt>'response'</tt></b> : <div class="sub-desc">
\r
3133 * <p>The raw browser response object (e.g.: XMLHttpRequest)</p>
\r
3135 * <li><b><tt>'remote'</tt></b> : <div class="sub-desc">
\r
3136 * <p>The decoded response object sent from the server.</p>
\r
3139 * @param {Mixed} arg
\r
3140 * <p>The type and value of this parameter depends on the value of the <code>type</code> parameter:</p>
\r
3141 * <div class="mdetail-params"><ul>
\r
3142 * <li><b><tt>'response'</tt></b> : Error<div class="sub-desc">
\r
3143 * <p>The JavaScript Error object caught if the configured Reader could not read the data.
\r
3144 * If the remote request returns success===false, this parameter will be null.</p>
\r
3146 * <li><b><tt>'remote'</tt></b> : Record/Record[]<div class="sub-desc">
\r
3147 * <p>This parameter will only exist if the <tt>action</tt> was a <b>write</b> action
\r
3148 * (Ext.data.Api.actions.create|update|destroy).</p>
\r
3154 * @event beforeload
\r
3155 * Fires before a request to retrieve a data object.
\r
3156 * @param {DataProxy} this The proxy for the request
\r
3157 * @param {Object} params The params object passed to the {@link #request} function
\r
3162 * Fires before the load method's callback is called.
\r
3163 * @param {DataProxy} this The proxy for the request
\r
3164 * @param {Object} o The request transaction object
\r
3165 * @param {Object} options The callback's <tt>options</tt> property as passed to the {@link #request} function
\r
3169 * @event loadexception
\r
3170 * <p>This event is <b>deprecated</b>. The signature of the loadexception event
\r
3171 * varies depending on the proxy, use the catch-all {@link #exception} event instead.
\r
3172 * This event will fire in addition to the {@link #exception} event.</p>
\r
3173 * @param {misc} misc See {@link #exception}.
\r
3178 * @event beforewrite
\r
3179 * <p>Fires before a request is generated for one of the actions Ext.data.Api.actions.create|update|destroy</p>
\r
3180 * <p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
\r
3181 * through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of beforewrite events from <b>all</b>
\r
3182 * DataProxies by attaching a listener to the Ext.data.Proxy class itself.</p>
\r
3183 * @param {DataProxy} this The proxy for the request
\r
3184 * @param {String} action [Ext.data.Api.actions.create|update|destroy]
\r
3185 * @param {Record/Array[Record]} rs The Record(s) to create|update|destroy.
\r
3186 * @param {Object} params The request <code>params</code> object. Edit <code>params</code> to add parameters to the request.
\r
3191 * <p>Fires before the request-callback is called</p>
\r
3192 * <p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
\r
3193 * through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of write events from <b>all</b>
\r
3194 * DataProxies by attaching a listener to the Ext.data.Proxy class itself.</p>
\r
3195 * @param {DataProxy} this The proxy that sent the request
\r
3196 * @param {String} action [Ext.data.Api.actions.create|upate|destroy]
\r
3197 * @param {Object} data The data object extracted from the server-response
\r
3198 * @param {Object} response The decoded response from server
\r
3199 * @param {Record/Record{}} rs The records from Store
\r
3200 * @param {Object} options The callback's <tt>options</tt> property as passed to the {@link #request} function
\r
3204 Ext.data.DataProxy.superclass.constructor.call(this);
\r
3206 // Prepare the proxy api. Ensures all API-actions are defined with the Object-form.
\r
3208 Ext.data.Api.prepare(this);
\r
3210 if (e instanceof Ext.data.Api.Error) {
\r
3214 // relay each proxy's events onto Ext.data.DataProxy class for centralized Proxy-listening
\r
3215 Ext.data.DataProxy.relayEvents(this, ['beforewrite', 'write', 'exception']);
\r
3218 Ext.extend(Ext.data.DataProxy, Ext.util.Observable, {
\r
3220 * @cfg {Boolean} restful
\r
3221 * <p>Defaults to <tt>false</tt>. Set to <tt>true</tt> to operate in a RESTful manner.</p>
\r
3222 * <br><p> Note: this parameter will automatically be set to <tt>true</tt> if the
\r
3223 * {@link Ext.data.Store} it is plugged into is set to <code>restful: true</code>. If the
\r
3224 * Store is RESTful, there is no need to set this option on the proxy.</p>
\r
3225 * <br><p>RESTful implementations enable the serverside framework to automatically route
\r
3226 * actions sent to one url based upon the HTTP method, for example:
\r
3228 store: new Ext.data.Store({
\r
3230 proxy: new Ext.data.HttpProxy({url:'/users'}); // all requests sent to /users
\r
3234 * If there is no <code>{@link #api}</code> specified in the configuration of the proxy,
\r
3235 * all requests will be marshalled to a single RESTful url (/users) so the serverside
\r
3236 * framework can inspect the HTTP Method and act accordingly:
\r
3238 <u>Method</u> <u>url</u> <u>action</u>
\r
3239 POST /users create
\r
3241 PUT /users/23 update
\r
3242 DESTROY /users/23 delete
\r
3244 * <p>If set to <tt>true</tt>, a {@link Ext.data.Record#phantom non-phantom} record's
\r
3245 * {@link Ext.data.Record#id id} will be appended to the url. Some MVC (e.g., Ruby on Rails,
\r
3246 * Merb and Django) support segment based urls where the segments in the URL follow the
\r
3247 * Model-View-Controller approach:<pre><code>
\r
3248 * someSite.com/controller/action/id
\r
3250 * Where the segments in the url are typically:<div class="mdetail-params"><ul>
\r
3251 * <li>The first segment : represents the controller class that should be invoked.</li>
\r
3252 * <li>The second segment : represents the class function, or method, that should be called.</li>
\r
3253 * <li>The third segment : represents the ID (a variable typically passed to the method).</li>
\r
3255 * <br><p>Refer to <code>{@link Ext.data.DataProxy#api}</code> for additional information.</p>
\r
3260 * <p>Redefines the Proxy's API or a single action of an API. Can be called with two method signatures.</p>
\r
3261 * <p>If called with an object as the only parameter, the object should redefine the <b>entire</b> API, e.g.:</p><pre><code>
\r
3263 read : '/users/read',
\r
3264 create : '/users/create',
\r
3265 update : '/users/update',
\r
3266 destroy : '/users/destroy'
\r
3269 * <p>If called with two parameters, the first parameter should be a string specifying the API action to
\r
3270 * redefine and the second parameter should be the URL (or function if using DirectProxy) to call for that action, e.g.:</p><pre><code>
\r
3271 proxy.setApi(Ext.data.Api.actions.read, '/users/new_load_url');
\r
3273 * @param {String/Object} api An API specification object, or the name of an action.
\r
3274 * @param {String/Function} url The URL (or function if using DirectProxy) to call for the action.
\r
3276 setApi : function() {
\r
3277 if (arguments.length == 1) {
\r
3278 var valid = Ext.data.Api.isValid(arguments[0]);
\r
3279 if (valid === true) {
\r
3280 this.api = arguments[0];
\r
3283 throw new Ext.data.Api.Error('invalid', valid);
\r
3286 else if (arguments.length == 2) {
\r
3287 if (!Ext.data.Api.isAction(arguments[0])) {
\r
3288 throw new Ext.data.Api.Error('invalid', arguments[0]);
\r
3290 this.api[arguments[0]] = arguments[1];
\r
3292 Ext.data.Api.prepare(this);
\r
3296 * Returns true if the specified action is defined as a unique action in the api-config.
\r
3297 * request. If all API-actions are routed to unique urls, the xaction parameter is unecessary. However, if no api is defined
\r
3298 * and all Proxy actions are routed to DataProxy#url, the server-side will require the xaction parameter to perform a switch to
\r
3299 * the corresponding code for CRUD action.
\r
3300 * @param {String [Ext.data.Api.CREATE|READ|UPDATE|DESTROY]} action
\r
3301 * @return {Boolean}
\r
3303 isApiAction : function(action) {
\r
3304 return (this.api[action]) ? true : false;
\r
3308 * All proxy actions are executed through this method. Automatically fires the "before" + action event
\r
3309 * @param {String} action Name of the action
\r
3310 * @param {Ext.data.Record/Ext.data.Record[]/null} rs Will be null when action is 'load'
\r
3311 * @param {Object} params
\r
3312 * @param {Ext.data.DataReader} reader
\r
3313 * @param {Function} callback
\r
3314 * @param {Object} scope Scope with which to call the callback (defaults to the Proxy object)
\r
3315 * @param {Object} options Any options specified for the action (e.g. see {@link Ext.data.Store#load}.
\r
3317 request : function(action, rs, params, reader, callback, scope, options) {
\r
3318 if (!this.api[action] && !this.load) {
\r
3319 throw new Ext.data.DataProxy.Error('action-undefined', action);
\r
3321 params = params || {};
\r
3322 if ((action === Ext.data.Api.actions.read) ? this.fireEvent("beforeload", this, params) : this.fireEvent("beforewrite", this, action, rs, params) !== false) {
\r
3323 this.doRequest.apply(this, arguments);
\r
3326 callback.call(scope || this, null, options, false);
\r
3332 * <b>Deprecated</b> load method using old method signature. See {@doRequest} for preferred method.
\r
3334 * @param {Object} params
\r
3335 * @param {Object} reader
\r
3336 * @param {Object} callback
\r
3337 * @param {Object} scope
\r
3338 * @param {Object} arg
\r
3343 * @cfg {Function} doRequest Abstract method that should be implemented in all subclasses
\r
3344 * (e.g.: {@link Ext.data.HttpProxy#doRequest HttpProxy.doRequest},
\r
3345 * {@link Ext.data.DirectProxy#doRequest DirectProxy.doRequest}).
\r
3347 doRequest : function(action, rs, params, reader, callback, scope, options) {
\r
3348 // default implementation of doRequest for backwards compatibility with 2.0 proxies.
\r
3349 // If we're executing here, the action is probably "load".
\r
3350 // Call with the pre-3.0 method signature.
\r
3351 this.load(params, reader, callback, scope, options);
\r
3356 * Sets the appropriate url based upon the action being executed. If restful is true, and only a single record is being acted upon,
\r
3357 * url will be built Rails-style, as in "/controller/action/32". restful will aply iff the supplied record is an
\r
3358 * instance of Ext.data.Record rather than an Array of them.
\r
3359 * @param {String} action The api action being executed [read|create|update|destroy]
\r
3360 * @param {Ext.data.Record/Array[Ext.data.Record]} The record or Array of Records being acted upon.
\r
3361 * @return {String} url
\r
3364 buildUrl : function(action, record) {
\r
3365 record = record || null;
\r
3366 var url = (this.api[action]) ? this.api[action].url : this.url;
\r
3368 throw new Ext.data.Api.Error('invalid-url', action);
\r
3371 // look for urls having "provides" suffix (from Rails/Merb and others...),
\r
3372 // e.g.: /users.json, /users.xml, etc
\r
3373 // with restful routes, we need urls like:
\r
3374 // PUT /users/1.json
\r
3375 // DELETE /users/1.json
\r
3376 var format = null;
\r
3377 var m = url.match(/(.*)(\.json|\.xml|\.html)$/);
\r
3379 format = m[2]; // eg ".json"
\r
3380 url = m[1]; // eg: "/users"
\r
3382 // prettyUrls is deprectated in favor of restful-config
\r
3383 if ((this.prettyUrls === true || this.restful === true) && record instanceof Ext.data.Record && !record.phantom) {
\r
3384 url += '/' + record.id;
\r
3386 if (format) { // <-- append the request format if exists (ie: /users/update/69[.json])
\r
3393 * Destroys the proxy by purging any event listeners and cancelling any active requests.
\r
3395 destroy: function(){
\r
3396 this.purgeListeners();
\r
3400 // Apply the Observable prototype to the DataProxy class so that proxy instances can relay their
\r
3401 // events to the class. Allows for centralized listening of all proxy instances upon the DataProxy class.
\r
3402 Ext.apply(Ext.data.DataProxy, Ext.util.Observable.prototype);
\r
3403 Ext.util.Observable.call(Ext.data.DataProxy);
\r
3406 * @class Ext.data.DataProxy.Error
\r
3407 * @extends Ext.Error
\r
3408 * DataProxy Error extension.
\r
3410 * @param {String} name
\r
3411 * @param {Record/Array[Record]/Array}
\r
3413 Ext.data.DataProxy.Error = Ext.extend(Ext.Error, {
\r
3414 constructor : function(message, arg) {
\r
3416 Ext.Error.call(this, message);
\r
3418 name: 'Ext.data.DataProxy'
\r
3420 Ext.apply(Ext.data.DataProxy.Error.prototype, {
\r
3422 'action-undefined': "DataProxy attempted to execute an API-action but found an undefined url / function. Please review your Proxy url/api-configuration.",
\r
3423 'api-invalid': 'Recieved an invalid API-configuration. Please ensure your proxy API-configuration contains only the actions from Ext.data.Api.actions.'
\r
3429 * @class Ext.data.ScriptTagProxy
\r
3430 * @extends Ext.data.DataProxy
\r
3431 * An implementation of Ext.data.DataProxy that reads a data object from a URL which may be in a domain
\r
3432 * other than the originating domain of the running page.<br>
\r
3434 * <b>Note that if you are retrieving data from a page that is in a domain that is NOT the same as the originating domain
\r
3435 * of the running page, you must use this class, rather than HttpProxy.</b><br>
\r
3437 * The content passed back from a server resource requested by a ScriptTagProxy <b>must</b> be executable JavaScript
\r
3438 * source code because it is used as the source inside a <script> tag.<br>
\r
3440 * In order for the browser to process the returned data, the server must wrap the data object
\r
3441 * with a call to a callback function, the name of which is passed as a parameter by the ScriptTagProxy.
\r
3442 * Below is a Java example for a servlet which returns data for either a ScriptTagProxy, or an HttpProxy
\r
3443 * depending on whether the callback name was passed:
\r
3446 boolean scriptTag = false;
\r
3447 String cb = request.getParameter("callback");
\r
3450 response.setContentType("text/javascript");
\r
3452 response.setContentType("application/x-json");
\r
3454 Writer out = response.getWriter();
\r
3456 out.write(cb + "(");
\r
3458 out.print(dataBlock.toJsonString());
\r
3465 * @param {Object} config A configuration object.
\r
3467 Ext.data.ScriptTagProxy = function(config){
\r
3468 Ext.apply(this, config);
\r
3470 Ext.data.ScriptTagProxy.superclass.constructor.call(this, config);
\r
3472 this.head = document.getElementsByTagName("head")[0];
\r
3475 * @event loadexception
\r
3476 * <b>Deprecated</b> in favor of 'exception' event.
\r
3477 * Fires if an exception occurs in the Proxy during data loading. This event can be fired for one of two reasons:
\r
3478 * <ul><li><b>The load call timed out.</b> This means the load callback did not execute within the time limit
\r
3479 * specified by {@link #timeout}. In this case, this event will be raised and the
\r
3480 * fourth parameter (read error) will be null.</li>
\r
3481 * <li><b>The load succeeded but the reader could not read the response.</b> This means the server returned
\r
3482 * data, but the configured Reader threw an error while reading the data. In this case, this event will be
\r
3483 * raised and the caught error will be passed along as the fourth parameter of this event.</li></ul>
\r
3484 * Note that this event is also relayed through {@link Ext.data.Store}, so you can listen for it directly
\r
3485 * on any Store instance.
\r
3486 * @param {Object} this
\r
3487 * @param {Object} options The loading options that were specified (see {@link #load} for details). If the load
\r
3488 * call timed out, this parameter will be null.
\r
3489 * @param {Object} arg The callback's arg object passed to the {@link #load} function
\r
3490 * @param {Error} e The JavaScript Error object caught if the configured Reader could not read the data.
\r
3491 * If the remote request returns success: false, this parameter will be null.
\r
3495 Ext.data.ScriptTagProxy.TRANS_ID = 1000;
\r
3497 Ext.extend(Ext.data.ScriptTagProxy, Ext.data.DataProxy, {
\r
3499 * @cfg {String} url The URL from which to request the data object.
\r
3502 * @cfg {Number} timeout (optional) The number of milliseconds to wait for a response. Defaults to 30 seconds.
\r
3506 * @cfg {String} callbackParam (Optional) The name of the parameter to pass to the server which tells
\r
3507 * the server the name of the callback function set up by the load call to process the returned data object.
\r
3508 * Defaults to "callback".<p>The server-side processing must read this parameter value, and generate
\r
3509 * javascript output which calls this named function passing the data object as its only parameter.
\r
3511 callbackParam : "callback",
\r
3513 * @cfg {Boolean} nocache (optional) Defaults to true. Disable caching by adding a unique parameter
\r
3514 * name to the request.
\r
3519 * HttpProxy implementation of DataProxy#doRequest
\r
3520 * @param {String} action
\r
3521 * @param {Ext.data.Record/Ext.data.Record[]} rs If action is <tt>read</tt>, rs will be null
\r
3522 * @param {Object} params An object containing properties which are to be used as HTTP parameters
\r
3523 * for the request to the remote server.
\r
3524 * @param {Ext.data.DataReader} reader The Reader object which converts the data
\r
3525 * object into a block of Ext.data.Records.
\r
3526 * @param {Function} callback The function into which to pass the block of Ext.data.Records.
\r
3527 * The function must be passed <ul>
\r
3528 * <li>The Record block object</li>
\r
3529 * <li>The "arg" argument from the load function</li>
\r
3530 * <li>A boolean success indicator</li>
\r
3532 * @param {Object} scope The scope in which to call the callback
\r
3533 * @param {Object} arg An optional argument which is passed to the callback as its second parameter.
\r
3535 doRequest : function(action, rs, params, reader, callback, scope, arg) {
\r
3536 var p = Ext.urlEncode(Ext.apply(params, this.extraParams));
\r
3538 var url = this.buildUrl(action, rs);
\r
3540 throw new Ext.data.Api.Error('invalid-url', url);
\r
3542 url = Ext.urlAppend(url, p);
\r
3545 url = Ext.urlAppend(url, '_dc=' + (new Date().getTime()));
\r
3547 var transId = ++Ext.data.ScriptTagProxy.TRANS_ID;
\r
3551 cb : "stcCallback"+transId,
\r
3552 scriptId : "stcScript"+transId,
\r
3556 callback : callback,
\r
3560 window[trans.cb] = this.createCallback(action, rs, trans);
\r
3561 url += String.format("&{0}={1}", this.callbackParam, trans.cb);
\r
3562 if(this.autoAbort !== false){
\r
3566 trans.timeoutId = this.handleFailure.defer(this.timeout, this, [trans]);
\r
3568 var script = document.createElement("script");
\r
3569 script.setAttribute("src", url);
\r
3570 script.setAttribute("type", "text/javascript");
\r
3571 script.setAttribute("id", trans.scriptId);
\r
3572 this.head.appendChild(script);
\r
3574 this.trans = trans;
\r
3577 // @private createCallback
\r
3578 createCallback : function(action, rs, trans) {
\r
3580 return function(res) {
\r
3581 self.trans = false;
\r
3582 self.destroyTrans(trans, true);
\r
3583 if (action === Ext.data.Api.actions.read) {
\r
3584 self.onRead.call(self, action, trans, res);
\r
3586 self.onWrite.call(self, action, trans, res, rs);
\r
3591 * Callback for read actions
\r
3592 * @param {String} action [Ext.data.Api.actions.create|read|update|destroy]
\r
3593 * @param {Object} trans The request transaction object
\r
3594 * @param {Object} res The server response
\r
3597 onRead : function(action, trans, res) {
\r
3600 result = trans.reader.readRecords(res);
\r
3602 // @deprecated: fire loadexception
\r
3603 this.fireEvent("loadexception", this, trans, res, e);
\r
3605 this.fireEvent('exception', this, 'response', action, trans, res, e);
\r
3606 trans.callback.call(trans.scope||window, null, trans.arg, false);
\r
3609 if (result.success === false) {
\r
3610 // @deprecated: fire old loadexception for backwards-compat.
\r
3611 this.fireEvent('loadexception', this, trans, res);
\r
3613 this.fireEvent('exception', this, 'remote', action, trans, res, null);
\r
3615 this.fireEvent("load", this, res, trans.arg);
\r
3617 trans.callback.call(trans.scope||window, result, trans.arg, result.success);
\r
3620 * Callback for write actions
\r
3621 * @param {String} action [Ext.data.Api.actions.create|read|update|destroy]
\r
3622 * @param {Object} trans The request transaction object
\r
3623 * @param {Object} res The server response
\r
3626 onWrite : function(action, trans, response, rs) {
\r
3627 var reader = trans.reader;
\r
3629 // though we already have a response object here in STP, run through readResponse to catch any meta-data exceptions.
\r
3630 var res = reader.readResponse(action, response);
\r
3632 this.fireEvent('exception', this, 'response', action, trans, res, e);
\r
3633 trans.callback.call(trans.scope||window, null, res, false);
\r
3636 if(!res.success === true){
\r
3637 this.fireEvent('exception', this, 'remote', action, trans, res, rs);
\r
3638 trans.callback.call(trans.scope||window, null, res, false);
\r
3641 this.fireEvent("write", this, action, res.data, res, rs, trans.arg );
\r
3642 trans.callback.call(trans.scope||window, res.data, res, true);
\r
3646 isLoading : function(){
\r
3647 return this.trans ? true : false;
\r
3651 * Abort the current server request.
\r
3653 abort : function(){
\r
3654 if(this.isLoading()){
\r
3655 this.destroyTrans(this.trans);
\r
3660 destroyTrans : function(trans, isLoaded){
\r
3661 this.head.removeChild(document.getElementById(trans.scriptId));
\r
3662 clearTimeout(trans.timeoutId);
\r
3664 window[trans.cb] = undefined;
\r
3666 delete window[trans.cb];
\r
3669 // if hasn't been loaded, wait for load to remove it to prevent script error
\r
3670 window[trans.cb] = function(){
\r
3671 window[trans.cb] = undefined;
\r
3673 delete window[trans.cb];
\r
3680 handleFailure : function(trans){
\r
3681 this.trans = false;
\r
3682 this.destroyTrans(trans, false);
\r
3683 if (trans.action === Ext.data.Api.actions.read) {
\r
3684 // @deprecated firing loadexception
\r
3685 this.fireEvent("loadexception", this, null, trans.arg);
\r
3688 this.fireEvent('exception', this, 'response', trans.action, {
\r
3690 options: trans.arg
\r
3692 trans.callback.call(trans.scope||window, null, trans.arg, false);
\r
3696 destroy: function(){
\r
3698 Ext.data.ScriptTagProxy.superclass.destroy.call(this);
\r
3701 * @class Ext.data.HttpProxy
\r
3702 * @extends Ext.data.DataProxy
\r
3703 * <p>An implementation of {@link Ext.data.DataProxy} that processes data requests within the same
\r
3704 * domain of the originating page.</p>
\r
3705 * <p><b>Note</b>: this class cannot be used to retrieve data from a domain other
\r
3706 * than the domain from which the running page was served. For cross-domain requests, use a
\r
3707 * {@link Ext.data.ScriptTagProxy ScriptTagProxy}.</p>
\r
3708 * <p>Be aware that to enable the browser to parse an XML document, the server must set
\r
3709 * the Content-Type header in the HTTP response to "<tt>text/xml</tt>".</p>
\r
3711 * @param {Object} conn
\r
3712 * An {@link Ext.data.Connection} object, or options parameter to {@link Ext.Ajax#request}.
\r
3713 * <p>Note that if this HttpProxy is being used by a (@link Ext.data.Store Store}, then the
\r
3714 * Store's call to {@link #load} will override any specified <tt>callback</tt> and <tt>params</tt>
\r
3715 * options. In this case, use the Store's {@link Ext.data.Store#events events} to modify parameters,
\r
3716 * or react to loading events. The Store's {@link Ext.data.Store#baseParams baseParams} may also be
\r
3717 * used to pass parameters known at instantiation time.</p>
\r
3718 * <p>If an options parameter is passed, the singleton {@link Ext.Ajax} object will be used to make
\r
3719 * the request.</p>
\r
3721 Ext.data.HttpProxy = function(conn){
\r
3722 Ext.data.HttpProxy.superclass.constructor.call(this, conn);
\r
3725 * The Connection object (Or options parameter to {@link Ext.Ajax#request}) which this HttpProxy
\r
3726 * uses to make requests to the server. Properties of this object may be changed dynamically to
\r
3727 * change the way data is requested.
\r
3732 // nullify the connection url. The url param has been copied to 'this' above. The connection
\r
3733 // url will be set during each execution of doRequest when buildUrl is called. This makes it easier for users to override the
\r
3734 // connection url during beforeaction events (ie: beforeload, beforewrite, etc).
\r
3735 // Url is always re-defined during doRequest.
\r
3736 this.conn.url = null;
\r
3738 this.useAjax = !conn || !conn.events;
\r
3740 // A hash containing active requests, keyed on action [Ext.data.Api.actions.create|read|update|destroy]
\r
3741 var actions = Ext.data.Api.actions;
\r
3742 this.activeRequest = {};
\r
3743 for (var verb in actions) {
\r
3744 this.activeRequest[actions[verb]] = undefined;
\r
3748 Ext.extend(Ext.data.HttpProxy, Ext.data.DataProxy, {
\r
3750 * Return the {@link Ext.data.Connection} object being used by this Proxy.
\r
3751 * @return {Connection} The Connection object. This object may be used to subscribe to events on
\r
3752 * a finer-grained basis than the DataProxy events.
\r
3754 getConnection : function() {
\r
3755 return this.useAjax ? Ext.Ajax : this.conn;
\r
3759 * Used for overriding the url used for a single request. Designed to be called during a beforeaction event. Calling setUrl
\r
3760 * will override any urls set via the api configuration parameter. Set the optional parameter makePermanent to set the url for
\r
3761 * all subsequent requests. If not set to makePermanent, the next request will use the same url or api configuration defined
\r
3762 * in the initial proxy configuration.
\r
3763 * @param {String} url
\r
3764 * @param {Boolean} makePermanent (Optional) [false]
\r
3766 * (e.g.: beforeload, beforesave, etc).
\r
3768 setUrl : function(url, makePermanent) {
\r
3769 this.conn.url = url;
\r
3770 if (makePermanent === true) {
\r
3773 Ext.data.Api.prepare(this);
\r
3778 * HttpProxy implementation of DataProxy#doRequest
\r
3779 * @param {String} action The crud action type (create, read, update, destroy)
\r
3780 * @param {Ext.data.Record/Ext.data.Record[]} rs If action is load, rs will be null
\r
3781 * @param {Object} params An object containing properties which are to be used as HTTP parameters
\r
3782 * for the request to the remote server.
\r
3783 * @param {Ext.data.DataReader} reader The Reader object which converts the data
\r
3784 * object into a block of Ext.data.Records.
\r
3785 * @param {Function} callback
\r
3786 * <div class="sub-desc"><p>A function to be called after the request.
\r
3787 * The <tt>callback</tt> is passed the following arguments:<ul>
\r
3788 * <li><tt>r</tt> : Ext.data.Record[] The block of Ext.data.Records.</li>
\r
3789 * <li><tt>options</tt>: Options object from the action request</li>
\r
3790 * <li><tt>success</tt>: Boolean success indicator</li></ul></p></div>
\r
3791 * @param {Object} scope The scope in which to call the callback
\r
3792 * @param {Object} arg An optional argument which is passed to the callback as its second parameter.
\r
3794 doRequest : function(action, rs, params, reader, cb, scope, arg) {
\r
3796 method: (this.api[action]) ? this.api[action]['method'] : undefined,
\r
3803 callback : this.createCallback(action, rs),
\r
3807 // If possible, transmit data using jsonData || xmlData on Ext.Ajax.request (An installed DataWriter would have written it there.).
\r
3808 // Use std HTTP params otherwise.
\r
3809 // TODO wrap into 1 Ext.apply now?
\r
3810 if (params.jsonData) {
\r
3811 o.jsonData = params.jsonData;
\r
3812 } else if (params.xmlData) {
\r
3813 o.xmlData = params.xmlData;
\r
3815 o.params = params || {};
\r
3817 // Set the connection url. If this.conn.url is not null here,
\r
3818 // the user may have overridden the url during a beforeaction event-handler.
\r
3819 // this.conn.url is nullified after each request.
\r
3820 if (this.conn.url === null) {
\r
3821 this.conn.url = this.buildUrl(action, rs);
\r
3823 else if (this.restful === true && rs instanceof Ext.data.Record && !rs.phantom) { // <-- user must have intervened with #setApi or #setUrl
\r
3824 this.conn.url += '/' + rs.id;
\r
3828 Ext.applyIf(o, this.conn);
\r
3830 // If a currently running request is found for this action, abort it.
\r
3831 if (this.activeRequest[action]) {
\r
3833 // Disabled aborting activeRequest while implementing REST. activeRequest[action] will have to become an array
\r
3834 // TODO ideas anyone?
\r
3836 //Ext.Ajax.abort(this.activeRequest[action]);
\r
3838 this.activeRequest[action] = Ext.Ajax.request(o);
\r
3840 this.conn.request(o);
\r
3842 // request is sent, nullify the connection url in preparation for the next request
\r
3843 this.conn.url = null;
\r
3847 * Returns a callback function for a request. Note a special case is made for the
\r
3848 * read action vs all the others.
\r
3849 * @param {String} action [create|update|delete|load]
\r
3850 * @param {Ext.data.Record[]} rs The Store-recordset being acted upon
\r
3853 createCallback : function(action, rs) {
\r
3854 return function(o, success, response) {
\r
3855 this.activeRequest[action] = undefined;
\r
3857 if (action === Ext.data.Api.actions.read) {
\r
3858 // @deprecated: fire loadexception for backwards compat.
\r
3859 // TODO remove in 3.1
\r
3860 this.fireEvent('loadexception', this, o, response);
\r
3862 this.fireEvent('exception', this, 'response', action, o, response);
\r
3863 o.request.callback.call(o.request.scope, null, o.request.arg, false);
\r
3866 if (action === Ext.data.Api.actions.read) {
\r
3867 this.onRead(action, o, response);
\r
3869 this.onWrite(action, o, response, rs);
\r
3875 * Callback for read action
\r
3876 * @param {String} action Action name as per {@link Ext.data.Api.actions#read}.
\r
3877 * @param {Object} o The request transaction object
\r
3878 * @param {Object} res The server response
\r
3879 * @fires loadexception (deprecated)
\r
3880 * @fires exception
\r
3884 onRead : function(action, o, response) {
\r
3887 result = o.reader.read(response);
\r
3889 // @deprecated: fire old loadexception for backwards-compat.
\r
3890 // TODO remove in 3.1
\r
3891 this.fireEvent('loadexception', this, o, response, e);
\r
3893 this.fireEvent('exception', this, 'response', action, o, response, e);
\r
3894 o.request.callback.call(o.request.scope, null, o.request.arg, false);
\r
3897 if (result.success === false) {
\r
3898 // @deprecated: fire old loadexception for backwards-compat.
\r
3899 // TODO remove in 3.1
\r
3900 this.fireEvent('loadexception', this, o, response);
\r
3902 // Get DataReader read-back a response-object to pass along to exception event
\r
3903 var res = o.reader.readResponse(action, response);
\r
3904 this.fireEvent('exception', this, 'remote', action, o, res, null);
\r
3907 this.fireEvent('load', this, o, o.request.arg);
\r
3909 // TODO refactor onRead, onWrite to be more generalized now that we're dealing with Ext.data.Response instance
\r
3910 // the calls to request.callback(...) in each will have to be made identical.
\r
3911 // NOTE reader.readResponse does not currently return Ext.data.Response
\r
3912 o.request.callback.call(o.request.scope, result, o.request.arg, result.success);
\r
3915 * Callback for write actions
\r
3916 * @param {String} action [Ext.data.Api.actions.create|read|update|destroy]
\r
3917 * @param {Object} trans The request transaction object
\r
3918 * @param {Object} res The server response
\r
3919 * @fires exception
\r
3923 onWrite : function(action, o, response, rs) {
\r
3924 var reader = o.reader;
\r
3927 res = reader.readResponse(action, response);
\r
3929 this.fireEvent('exception', this, 'response', action, o, response, e);
\r
3930 o.request.callback.call(o.request.scope, null, o.request.arg, false);
\r
3933 if (res.success === false) {
\r
3934 this.fireEvent('exception', this, 'remote', action, o, res, rs);
\r
3936 this.fireEvent('write', this, action, res.data, res, rs, o.request.arg);
\r
3938 // TODO refactor onRead, onWrite to be more generalized now that we're dealing with Ext.data.Response instance
\r
3939 // the calls to request.callback(...) in each will have to be made similar.
\r
3940 // NOTE reader.readResponse does not currently return Ext.data.Response
\r
3941 o.request.callback.call(o.request.scope, res.data, res, res.success);
\r
3945 destroy: function(){
\r
3946 if(!this.useAjax){
\r
3947 this.conn.abort();
\r
3948 }else if(this.activeRequest){
\r
3949 var actions = Ext.data.Api.actions;
\r
3950 for (var verb in actions) {
\r
3951 if(this.activeRequest[actions[verb]]){
\r
3952 Ext.Ajax.abort(this.activeRequest[actions[verb]]);
\r
3956 Ext.data.HttpProxy.superclass.destroy.call(this);
\r
3959 * @class Ext.data.MemoryProxy
\r
3960 * @extends Ext.data.DataProxy
\r
3961 * An implementation of Ext.data.DataProxy that simply passes the data specified in its constructor
\r
3962 * to the Reader when its load method is called.
\r
3964 * @param {Object} data The data object which the Reader uses to construct a block of Ext.data.Records.
\r
3966 Ext.data.MemoryProxy = function(data){
\r
3967 // Must define a dummy api with "read" action to satisfy DataProxy#doRequest and Ext.data.Api#prepare *before* calling super
\r
3969 api[Ext.data.Api.actions.read] = true;
\r
3970 Ext.data.MemoryProxy.superclass.constructor.call(this, {
\r
3976 Ext.extend(Ext.data.MemoryProxy, Ext.data.DataProxy, {
\r
3978 * @event loadexception
\r
3979 * Fires if an exception occurs in the Proxy during data loading. Note that this event is also relayed
\r
3980 * through {@link Ext.data.Store}, so you can listen for it directly on any Store instance.
\r
3981 * @param {Object} this
\r
3982 * @param {Object} arg The callback's arg object passed to the {@link #load} function
\r
3983 * @param {Object} null This parameter does not apply and will always be null for MemoryProxy
\r
3984 * @param {Error} e The JavaScript Error object caught if the configured Reader could not read the data
\r
3988 * MemoryProxy implementation of DataProxy#doRequest
\r
3989 * @param {String} action
\r
3990 * @param {Ext.data.Record/Ext.data.Record[]} rs If action is load, rs will be null
\r
3991 * @param {Object} params An object containing properties which are to be used as HTTP parameters
\r
3992 * for the request to the remote server.
\r
3993 * @param {Ext.data.DataReader} reader The Reader object which converts the data
\r
3994 * object into a block of Ext.data.Records.
\r
3995 * @param {Function} callback The function into which to pass the block of Ext.data.Records.
\r
3996 * The function must be passed <ul>
\r
3997 * <li>The Record block object</li>
\r
3998 * <li>The "arg" argument from the load function</li>
\r
3999 * <li>A boolean success indicator</li>
\r
4001 * @param {Object} scope The scope in which to call the callback
\r
4002 * @param {Object} arg An optional argument which is passed to the callback as its second parameter.
\r
4004 doRequest : function(action, rs, params, reader, callback, scope, arg) {
\r
4005 // No implementation for CRUD in MemoryProxy. Assumes all actions are 'load'
\r
4006 params = params || {};
\r
4009 result = reader.readRecords(this.data);
\r
4011 // @deprecated loadexception
\r
4012 this.fireEvent("loadexception", this, null, arg, e);
\r
4014 this.fireEvent('exception', this, 'response', action, arg, null, e);
\r
4015 callback.call(scope, null, arg, false);
\r
4018 callback.call(scope, result, arg, true);
\r