X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/source/data/Store.js?ds=sidebyside
diff --git a/source/data/Store.js b/source/data/Store.js
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-/*
- * Ext JS Library 2.2.1
- * Copyright(c) 2006-2009, Ext JS, LLC.
- * licensing@extjs.com
- *
- * http://extjs.com/license
- */
-
-/**
- * @class Ext.data.Store
- * @extends Ext.util.Observable
- * The Store class encapsulates a client side cache of {@link Ext.data.Record Record}
- * objects which provide input data for Components such as the {@link Ext.grid.GridPanel GridPanel},
- * the {@link Ext.form.ComboBox ComboBox}, or the {@link Ext.DataView DataView}
- * A Store object uses its {@link #proxy configured} implementation of {@link Ext.data.DataProxy DataProxy}
- * to access a data object unless you call {@link #loadData} directly and pass in your data.
- * A Store object has no knowledge of the format of the data returned by the Proxy.
- * A Store object uses its {@link #reader configured} implementation of {@link Ext.data.DataReader DataReader}
- * to create {@link Ext.data.Record Record} instances from the data object. These Records
- * are cached and made available through accessor functions.
- * @constructor
- * Creates a new Store.
- * @param {Object} config A config object containing the objects needed for the Store to access data,
- * and read the data into Records.
- */
-Ext.data.Store = function(config){
- this.data = new Ext.util.MixedCollection(false);
- this.data.getKey = function(o){
- return o.id;
- };
- /**
- * An object containing properties which are used as parameters on any HTTP request.
- * This property can be changed after creating the Store to send different parameters.
- * @property
- */
- this.baseParams = {};
- /**
- * An object containing properties which specify the names of the paging and
- * sorting parameters passed to remote servers when loading blocks of data. By default, this
- * object takes the following form:
-{
- start : "start", // The parameter name which specifies the start row
- limit : "limit", // The parameter name which specifies number of rows to return
- sort : "sort", // The parameter name which specifies the column to sort on
- dir : "dir" // The parameter name which specifies the sort direction
-}
-
- * The server must produce the requested data block upon receipt of these parameter names.
- * If different parameter names are required, this property can be overriden using a configuration
- * property.
- * A {@link Ext.PagingToolbar PagingToolbar} bound to this grid uses this property to determine
- * the parameter names to use in its requests.
- * @property
- */
- this.paramNames = {
- "start" : "start",
- "limit" : "limit",
- "sort" : "sort",
- "dir" : "dir"
- };
-
- if(config && config.data){
- this.inlineData = config.data;
- delete config.data;
- }
-
- Ext.apply(this, config);
-
- if(this.url && !this.proxy){
- this.proxy = new Ext.data.HttpProxy({url: this.url});
- }
-
- if(this.reader){ // reader passed
- if(!this.recordType){
- this.recordType = this.reader.recordType;
- }
- if(this.reader.onMetaChange){
- this.reader.onMetaChange = this.onMetaChange.createDelegate(this);
- }
- }
-
- /**
- * The {@link Ext.data.Record Record} constructor as supplied to (or created by) the {@link Ext.data.Reader#Reader Reader}. Read-only.
- *
If the Reader was constructed by passing in an Array of field definition objects, instead of an created
- * Record constructor it will have {@link Ext.data.Record#create created a constructor} from that Array.
- * This property may be used to create new Records of the type held in this Store.
- * @property recordType
- * @type Function
- */
- if(this.recordType){
- /**
- * A MixedCollection containing the defined {@link Ext.data.Field Field}s for the Records stored in this Store. Read-only.
- * @property fields
- * @type Ext.util.MixedCollection
- */
- this.fields = this.recordType.prototype.fields;
- }
- this.modified = [];
-
- this.addEvents(
- /**
- * @event datachanged
- * Fires when the data cache has changed in a bulk manner (e.g., it has been sorted, filtered, etc.) and a
- * widget that is using this Store as a Record cache should refresh its view.
- * @param {Store} this
- */
- 'datachanged',
- /**
- * @event metachange
- * Fires when this store's reader provides new metadata (fields). This is currently only supported for JsonReaders.
- * @param {Store} this
- * @param {Object} meta The JSON metadata
- */
- 'metachange',
- /**
- * @event add
- * Fires when Records have been added to the Store
- * @param {Store} this
- * @param {Ext.data.Record[]} records The array of Records added
- * @param {Number} index The index at which the record(s) were added
- */
- 'add',
- /**
- * @event remove
- * Fires when a Record has been removed from the Store
- * @param {Store} this
- * @param {Ext.data.Record} record The Record that was removed
- * @param {Number} index The index at which the record was removed
- */
- 'remove',
- /**
- * @event update
- * Fires when a Record has been updated
- * @param {Store} this
- * @param {Ext.data.Record} record The Record that was updated
- * @param {String} operation The update operation being performed. Value may be one of:
- *
- Ext.data.Record.EDIT
- Ext.data.Record.REJECT
- Ext.data.Record.COMMIT
- *
- */
- 'update',
- /**
- * @event clear
- * Fires when the data cache has been cleared.
- * @param {Store} this
- */
- 'clear',
- /**
- * @event beforeload
- * Fires before a request is made for a new data object. If the beforeload handler returns false
- * the load action will be canceled.
- * @param {Store} this
- * @param {Object} options The loading options that were specified (see {@link #load} for details)
- */
- 'beforeload',
- /**
- * @event load
- * Fires after a new set of Records has been loaded.
- * @param {Store} this
- * @param {Ext.data.Record[]} records The Records that were loaded
- * @param {Object} options The loading options that were specified (see {@link #load} for details)
- */
- 'load',
- /**
- * @event loadexception
- * Fires if an exception occurs in the Proxy during loading.
- * Called with the signature of the Proxy's "loadexception" event.
- */
- 'loadexception'
- );
-
- if(this.proxy){
- this.relayEvents(this.proxy, ["loadexception"]);
- }
-
- this.sortToggle = {};
- if(this.sortInfo){
- this.setDefaultSort(this.sortInfo.field, this.sortInfo.direction);
- }
-
- Ext.data.Store.superclass.constructor.call(this);
-
- if(this.storeId || this.id){
- Ext.StoreMgr.register(this);
- }
- if(this.inlineData){
- this.loadData(this.inlineData);
- delete this.inlineData;
- }else if(this.autoLoad){
- this.load.defer(10, this, [
- typeof this.autoLoad == 'object' ?
- this.autoLoad : undefined]);
- }
-};
-Ext.extend(Ext.data.Store, Ext.util.Observable, {
- /**
- * @cfg {String} storeId If passed, the id to use to register with the StoreMgr
- */
- /**
- * @cfg {String} url If passed, an HttpProxy is created for the passed URL
- */
- /**
- * @cfg {Boolean/Object} autoLoad If passed, this store's load method is automatically called after creation with the autoLoad object
- */
- /**
- * @cfg {Ext.data.DataProxy} proxy The Proxy object which provides access to a data object.
- */
- /**
- * @cfg {Array} data Inline data to be loaded when the store is initialized.
- */
- /**
- * @cfg {Ext.data.DataReader} reader The DataReader object which processes the data object and returns
- * an Array of Ext.data.Record objects which are cached keyed by their id property.
- */
- /**
- * @cfg {Object} baseParams An object containing properties which are to be sent as parameters
- * on any HTTP request
- */
- /**
- * @cfg {Object} sortInfo A config object in the format: {field: "fieldName", direction: "ASC|DESC"} to
- * specify the sort order in the request of a remote Store's {@link #load} operation. Note that for
- * local sorting, the direction property is case-sensitive.
- */
- /**
- * @cfg {boolean} remoteSort True if sorting is to be handled by requesting the
- * Proxy to provide a refreshed version of the data object in sorted order, as
- * opposed to sorting the Record cache in place (defaults to false).
- * If remote sorting is specified, then clicking on a column header causes the
- * current page to be requested from the server with the addition of the following
- * two parameters:
- *
- * - sort : String
The name (as specified in
- * the Record's Field definition) of the field to sort on.
- * - dir : String
The direction of the sort, "ASC" or "DESC" (case-sensitive).
- *
- */
- remoteSort : false,
-
- /**
- * @cfg {boolean} pruneModifiedRecords True to clear all modified record information each time the store is
- * loaded or when a record is removed. (defaults to false).
- */
- pruneModifiedRecords : false,
-
- /**
- * Contains the last options object used as the parameter to the load method. See {@link #load}
- * for the details of what this may contain. This may be useful for accessing any params which
- * were used to load the current Record cache.
- * @property
- */
- lastOptions : null,
-
- destroy : function(){
- if(this.storeId || this.id){
- Ext.StoreMgr.unregister(this);
- }
- this.data = null;
- this.purgeListeners();
- },
-
- /**
- * Add Records to the Store and fires the {@link #add} event.
- * @param {Ext.data.Record[]} records An Array of Ext.data.Record objects to add to the cache.
- */
- add : function(records){
- records = [].concat(records);
- if(records.length < 1){
- return;
- }
- for(var i = 0, len = records.length; i < len; i++){
- records[i].join(this);
- }
- var index = this.data.length;
- this.data.addAll(records);
- if(this.snapshot){
- this.snapshot.addAll(records);
- }
- this.fireEvent("add", this, records, index);
- },
-
- /**
- * (Local sort only) Inserts the passed Record into the Store at the index where it
- * should go based on the current sort information.
- * @param {Ext.data.Record} record
- */
- addSorted : function(record){
- var index = this.findInsertIndex(record);
- this.insert(index, record);
- },
-
- /**
- * Remove a Record from the Store and fires the {@link #remove} event.
- * @param {Ext.data.Record} record The Ext.data.Record object to remove from the cache.
- */
- remove : function(record){
- var index = this.data.indexOf(record);
- this.data.removeAt(index);
- if(this.pruneModifiedRecords){
- this.modified.remove(record);
- }
- if(this.snapshot){
- this.snapshot.remove(record);
- }
- this.fireEvent("remove", this, record, index);
- },
-
- /**
- * Remove a Record from the Store at the specified index. Fires the {@link #remove} event.
- * @param {Number} index The index of the record to remove.
- */
- removeAt : function(index){
- this.remove(this.getAt(index));
- },
-
- /**
- * Remove all Records from the Store and fires the {@link #clear} event.
- */
- removeAll : function(){
- this.data.clear();
- if(this.snapshot){
- this.snapshot.clear();
- }
- if(this.pruneModifiedRecords){
- this.modified = [];
- }
- this.fireEvent("clear", this);
- },
-
- /**
- * Inserts Records into the Store at the given index and fires the {@link #add} event.
- * @param {Number} index The start index at which to insert the passed Records.
- * @param {Ext.data.Record[]} records An Array of Ext.data.Record objects to add to the cache.
- */
- insert : function(index, records){
- records = [].concat(records);
- for(var i = 0, len = records.length; i < len; i++){
- this.data.insert(index, records[i]);
- records[i].join(this);
- }
- this.fireEvent("add", this, records, index);
- },
-
- /**
- * Get the index within the cache of the passed Record.
- * @param {Ext.data.Record} record The Ext.data.Record object to find.
- * @return {Number} The index of the passed Record. Returns -1 if not found.
- */
- indexOf : function(record){
- return this.data.indexOf(record);
- },
-
- /**
- * Get the index within the cache of the Record with the passed id.
- * @param {String} id The id of the Record to find.
- * @return {Number} The index of the Record. Returns -1 if not found.
- */
- indexOfId : function(id){
- return this.data.indexOfKey(id);
- },
-
- /**
- * Get the Record with the specified id.
- * @param {String} id The id of the Record to find.
- * @return {Ext.data.Record} The Record with the passed id. Returns undefined if not found.
- */
- getById : function(id){
- return this.data.key(id);
- },
-
- /**
- * Get the Record at the specified index.
- * @param {Number} index The index of the Record to find.
- * @return {Ext.data.Record} The Record at the passed index. Returns undefined if not found.
- */
- getAt : function(index){
- return this.data.itemAt(index);
- },
-
- /**
- * Returns a range of Records between specified indices.
- * @param {Number} startIndex (optional) The starting index (defaults to 0)
- * @param {Number} endIndex (optional) The ending index (defaults to the last Record in the Store)
- * @return {Ext.data.Record[]} An array of Records
- */
- getRange : function(start, end){
- return this.data.getRange(start, end);
- },
-
- // private
- storeOptions : function(o){
- o = Ext.apply({}, o);
- delete o.callback;
- delete o.scope;
- this.lastOptions = o;
- },
-
- /**
- * Loads the Record cache from the configured Proxy using the configured Reader.
- * If using remote paging, then the first load call must specify the start
- * and limit properties in the options.params property to establish the initial
- * position within the dataset, and the number of Records to cache on each read from the Proxy.
- * It is important to note that for remote data sources, loading is asynchronous,
- * and this call will return before the new data has been loaded. Perform any post-processing
- * in a callback function, or in a "load" event handler.
- * @param {Object} options An object containing properties which control loading options:
- * - params :Object
An object containing properties to pass as HTTP parameters to a remote data source.
- * - callback : Function
A function to be called after the Records have been loaded. The callback is
- * passed the following arguments:
- * - r : Ext.data.Record[]
- * - options: Options object from the load call
- * - success: Boolean success indicator
- * - scope : Object
Scope with which to call the callback (defaults to the Store object)
- * - add : Boolean
Indicator to append loaded records rather than replace the current cache.
- *
- * @return {Boolean} Whether the load fired (if beforeload failed).
- */
- load : function(options){
- options = options || {};
- if(this.fireEvent("beforeload", this, options) !== false){
- this.storeOptions(options);
- var p = Ext.apply(options.params || {}, this.baseParams);
- if(this.sortInfo && this.remoteSort){
- var pn = this.paramNames;
- p[pn["sort"]] = this.sortInfo.field;
- p[pn["dir"]] = this.sortInfo.direction;
- }
- this.proxy.load(p, this.reader, this.loadRecords, this, options);
- return true;
- } else {
- return false;
- }
- },
-
- /**
- * Reloads the Record cache from the configured Proxy using the configured Reader and
- * the options from the last load operation performed.
- * It is important to note that for remote data sources, loading is asynchronous,
- * and this call will return before the new data has been loaded. Perform any post-processing
- * in a callback function, or in a "load" event handler.
- * @param {Object} options (optional) An object containing loading options which may override the options
- * used in the last load operation. See {@link #load} for details (defaults to null, in which case
- * the most recently used options are reused).
- */
- reload : function(options){
- this.load(Ext.applyIf(options||{}, this.lastOptions));
- },
-
- // private
- // Called as a callback by the Reader during a load operation.
- loadRecords : function(o, options, success){
- if(!o || success === false){
- if(success !== false){
- this.fireEvent("load", this, [], options);
- }
- if(options.callback){
- options.callback.call(options.scope || this, [], options, false);
- }
- return;
- }
- var r = o.records, t = o.totalRecords || r.length;
- if(!options || options.add !== true){
- if(this.pruneModifiedRecords){
- this.modified = [];
- }
- for(var i = 0, len = r.length; i < len; i++){
- r[i].join(this);
- }
- if(this.snapshot){
- this.data = this.snapshot;
- delete this.snapshot;
- }
- this.data.clear();
- this.data.addAll(r);
- this.totalLength = t;
- this.applySort();
- this.fireEvent("datachanged", this);
- }else{
- this.totalLength = Math.max(t, this.data.length+r.length);
- this.add(r);
- }
- this.fireEvent("load", this, r, options);
- if(options.callback){
- options.callback.call(options.scope || this, r, options, true);
- }
- },
-
- /**
- * Loads data from a passed data block and fires the {@link #load} event. A Reader which understands the format of the data
- * must have been configured in the constructor.
- * @param {Object} data The data block from which to read the Records. The format of the data expected
- * is dependent on the type of Reader that is configured and should correspond to that Reader's readRecords parameter.
- * @param {Boolean} add (Optional) True to add the new Records rather than replace the existing cache. Remember that
- * Records in a Store are keyed by their {@link Ext.data.Record#id id}, so added Records with ids which are already present in
- * the Store will replace existing Records. Records with new, unique ids will be added.
- */
- loadData : function(o, append){
- var r = this.reader.readRecords(o);
- this.loadRecords(r, {add: append}, true);
- },
-
- /**
- * Gets the number of cached records.
- * If using paging, this may not be the total size of the dataset. If the data object
- * used by the Reader contains the dataset size, then the {@link #getTotalCount} function returns
- * the dataset size.
- * @return {Number} The number of Records in the Store's cache.
- */
- getCount : function(){
- return this.data.length || 0;
- },
-
- /**
- * Gets the total number of records in the dataset as returned by the server.
- * If using paging, for this to be accurate, the data object used by the Reader must contain
- * the dataset size. For remote data sources, this is provided by a query on the server.
- * @return {Number} The number of Records as specified in the data object passed to the Reader
- * by the Proxy
- * This value is not updated when changing the contents of the Store locally.
- */
- getTotalCount : function(){
- return this.totalLength || 0;
- },
-
- /**
- * Returns an object describing the current sort state of this Store.
- * @return {Object} The sort state of the Store. An object with two properties:
- * - field : String
The name of the field by which the Records are sorted.
- * - direction : String
The sort order, "ASC" or "DESC" (case-sensitive).
- *
- */
- getSortState : function(){
- return this.sortInfo;
- },
-
- // private
- applySort : function(){
- if(this.sortInfo && !this.remoteSort){
- var s = this.sortInfo, f = s.field;
- this.sortData(f, s.direction);
- }
- },
-
- // private
- sortData : function(f, direction){
- direction = direction || 'ASC';
- var st = this.fields.get(f).sortType;
- var fn = function(r1, r2){
- var v1 = st(r1.data[f]), v2 = st(r2.data[f]);
- return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
- };
- this.data.sort(direction, fn);
- if(this.snapshot && this.snapshot != this.data){
- this.snapshot.sort(direction, fn);
- }
- },
-
- /**
- * Sets the default sort column and order to be used by the next load operation.
- * @param {String} fieldName The name of the field to sort by.
- * @param {String} dir (optional) The sort order, "ASC" or "DESC" (case-sensitive, defaults to "ASC")
- */
- setDefaultSort : function(field, dir){
- dir = dir ? dir.toUpperCase() : "ASC";
- this.sortInfo = {field: field, direction: dir};
- this.sortToggle[field] = dir;
- },
-
- /**
- * Sort the Records.
- * If remote sorting is used, the sort is performed on the server, and the cache is
- * reloaded. If local sorting is used, the cache is sorted internally.
- * @param {String} fieldName The name of the field to sort by.
- * @param {String} dir (optional) The sort order, "ASC" or "DESC" (case-sensitive, defaults to "ASC")
- */
- sort : function(fieldName, dir){
- var f = this.fields.get(fieldName);
- if(!f){
- return false;
- }
- if(!dir){
- if(this.sortInfo && this.sortInfo.field == f.name){ // toggle sort dir
- dir = (this.sortToggle[f.name] || "ASC").toggle("ASC", "DESC");
- }else{
- dir = f.sortDir;
- }
- }
- var st = (this.sortToggle) ? this.sortToggle[f.name] : null;
- var si = (this.sortInfo) ? this.sortInfo : null;
-
- this.sortToggle[f.name] = dir;
- this.sortInfo = {field: f.name, direction: dir};
- if(!this.remoteSort){
- this.applySort();
- this.fireEvent("datachanged", this);
- }else{
- if (!this.load(this.lastOptions)) {
- if (st) {
- this.sortToggle[f.name] = st;
- }
- if (si) {
- this.sortInfo = si;
- }
- }
- }
- },
-
- /**
- * Calls the specified function for each of the Records in the cache.
- * @param {Function} fn The function to call. The Record is passed as the first parameter.
- * Returning false aborts and exits the iteration.
- * @param {Object} scope (optional) The scope in which to call the function (defaults to the Record).
- */
- each : function(fn, scope){
- this.data.each(fn, scope);
- },
-
- /**
- * Gets all records modified since the last commit. Modified records are persisted across load operations
- * (e.g., during paging).
- * @return {Ext.data.Record[]} An array of Records containing outstanding modifications.
- */
- getModifiedRecords : function(){
- return this.modified;
- },
-
- // private
- createFilterFn : function(property, value, anyMatch, caseSensitive){
- if(Ext.isEmpty(value, false)){
- return false;
- }
- value = this.data.createValueMatcher(value, anyMatch, caseSensitive);
- return function(r){
- return value.test(r.data[property]);
- };
- },
-
- /**
- * Sums the value of property for each record between start and end and returns the result.
- * @param {String} property A field on your records
- * @param {Number} start The record index to start at (defaults to 0)
- * @param {Number} end The last record index to include (defaults to length - 1)
- * @return {Number} The sum
- */
- sum : function(property, start, end){
- var rs = this.data.items, v = 0;
- start = start || 0;
- end = (end || end === 0) ? end : rs.length-1;
-
- for(var i = start; i <= end; i++){
- v += (rs[i].data[property] || 0);
- }
- return v;
- },
-
- /**
- * Filter the records by a specified property.
- * @param {String} field A field on your records
- * @param {String/RegExp} value Either a string that the field
- * should begin with, or a RegExp to test against the field.
- * @param {Boolean} anyMatch (optional) True to match any part not just the beginning
- * @param {Boolean} caseSensitive (optional) True for case sensitive comparison
- */
- filter : function(property, value, anyMatch, caseSensitive){
- var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
- return fn ? this.filterBy(fn) : this.clearFilter();
- },
-
- /**
- * Filter by a function. The specified function will be called for each
- * Record in this Store. If the function returns true the Record is included,
- * otherwise it is filtered out.
- * @param {Function} fn The function to be called. It will be passed the following parameters:
- * @param {Object} scope (optional) The scope of the function (defaults to this)
- */
- filterBy : function(fn, scope){
- this.snapshot = this.snapshot || this.data;
- this.data = this.queryBy(fn, scope||this);
- this.fireEvent("datachanged", this);
- },
-
- /**
- * Query the records by a specified property.
- * @param {String} field A field on your records
- * @param {String/RegExp} value Either a string that the field
- * should begin with, or a RegExp to test against the field.
- * @param {Boolean} anyMatch (optional) True to match any part not just the beginning
- * @param {Boolean} caseSensitive (optional) True for case sensitive comparison
- * @return {MixedCollection} Returns an Ext.util.MixedCollection of the matched records
- */
- query : function(property, value, anyMatch, caseSensitive){
- var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
- return fn ? this.queryBy(fn) : this.data.clone();
- },
-
- /**
- * Query the cached records in this Store using a filtering function. The specified function
- * will be called with each record in this Store. If the function returns true the record is
- * included in the results.
- * @param {Function} fn The function to be called. It will be passed the following parameters:
- * @param {Object} scope (optional) The scope of the function (defaults to this)
- * @return {MixedCollection} Returns an Ext.util.MixedCollection of the matched records
- **/
- queryBy : function(fn, scope){
- var data = this.snapshot || this.data;
- return data.filterBy(fn, scope||this);
- },
-
- /**
- * Finds the index of the first matching record in this store by a specific property/value.
- * @param {String} property A property on your objects
- * @param {String/RegExp} value Either a string that the property value
- * should begin with, or a RegExp to test against the property.
- * @param {Number} startIndex (optional) The index to start searching at
- * @param {Boolean} anyMatch (optional) True to match any part of the string, not just the beginning
- * @param {Boolean} caseSensitive (optional) True for case sensitive comparison
- * @return {Number} The matched index or -1
- */
- find : function(property, value, start, anyMatch, caseSensitive){
- var fn = this.createFilterFn(property, value, anyMatch, caseSensitive);
- return fn ? this.data.findIndexBy(fn, null, start) : -1;
- },
-
- /**
- * Find the index of the first matching Record in this Store by a function.
- * If the function returns true it is considered a match.
- * @param {Function} fn The function to be called. It will be passed the following parameters:
- * @param {Object} scope (optional) The scope of the function (defaults to this)
- * @param {Number} startIndex (optional) The index to start searching at
- * @return {Number} The matched index or -1
- */
- findBy : function(fn, scope, start){
- return this.data.findIndexBy(fn, scope, start);
- },
-
- /**
- * Collects unique values for a particular dataIndex from this store.
- * @param {String} dataIndex The property to collect
- * @param {Boolean} allowNull (optional) Pass true to allow null, undefined or empty string values
- * @param {Boolean} bypassFilter (optional) Pass true to collect from all records, even ones which are filtered
- * @return {Array} An array of the unique values
- **/
- collect : function(dataIndex, allowNull, bypassFilter){
- var d = (bypassFilter === true && this.snapshot) ?
- this.snapshot.items : this.data.items;
- var v, sv, r = [], l = {};
- for(var i = 0, len = d.length; i < len; i++){
- v = d[i].data[dataIndex];
- sv = String(v);
- if((allowNull || !Ext.isEmpty(v)) && !l[sv]){
- l[sv] = true;
- r[r.length] = v;
- }
- }
- return r;
- },
-
- /**
- * Revert to a view of the Record cache with no filtering applied.
- * @param {Boolean} suppressEvent If true the filter is cleared silently without notifying listeners
- */
- clearFilter : function(suppressEvent){
- if(this.isFiltered()){
- this.data = this.snapshot;
- delete this.snapshot;
- if(suppressEvent !== true){
- this.fireEvent("datachanged", this);
- }
- }
- },
-
- /**
- * Returns true if this store is currently filtered
- * @return {Boolean}
- */
- isFiltered : function(){
- return this.snapshot && this.snapshot != this.data;
- },
-
- // private
- afterEdit : function(record){
- if(this.modified.indexOf(record) == -1){
- this.modified.push(record);
- }
- this.fireEvent("update", this, record, Ext.data.Record.EDIT);
- },
-
- // private
- afterReject : function(record){
- this.modified.remove(record);
- this.fireEvent("update", this, record, Ext.data.Record.REJECT);
- },
-
- // private
- afterCommit : function(record){
- this.modified.remove(record);
- this.fireEvent("update", this, record, Ext.data.Record.COMMIT);
- },
-
- /**
- * Commit all Records with outstanding changes. To handle updates for changes, subscribe to the
- * Store's "update" event, and perform updating when the third parameter is Ext.data.Record.COMMIT.
- */
- commitChanges : function(){
- var m = this.modified.slice(0);
- this.modified = [];
- for(var i = 0, len = m.length; i < len; i++){
- m[i].commit();
- }
- },
-
- /**
- * Cancel outstanding changes on all changed records.
- */
- rejectChanges : function(){
- var m = this.modified.slice(0);
- this.modified = [];
- for(var i = 0, len = m.length; i < len; i++){
- m[i].reject();
- }
- },
-
- // private
- onMetaChange : function(meta, rtype, o){
- this.recordType = rtype;
- this.fields = rtype.prototype.fields;
- delete this.snapshot;
- this.sortInfo = meta.sortInfo;
- this.modified = [];
- this.fireEvent('metachange', this, this.reader.meta);
- },
-
- // private
- findInsertIndex : function(record){
- this.suspendEvents();
- var data = this.data.clone();
- this.data.add(record);
- this.applySort();
- var index = this.data.indexOf(record);
- this.data = data;
- this.resumeEvents();
- return index;
- }
-});
\ No newline at end of file