X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/25ef3491bd9ae007ff1fc2b0d7943e6eaaccf775..2e847cf21b8ab9d15fa167b315ca5b2fa92638fc:/docs/source/Store.html diff --git a/docs/source/Store.html b/docs/source/Store.html index d0698207..5e3b08d6 100644 --- a/docs/source/Store.html +++ b/docs/source/Store.html @@ -1,17 +1,12 @@ - - - The source code - - - - - 
/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-
/**
+
+
+      
+  The source code
+    
+    
+
+
+    
/**
  * @class Ext.data.Store
  * @extends Ext.util.Observable
  * 
The Store class encapsulates a client side cache of {@link Ext.data.Record Record}
@@ -83,282 +78,7 @@ myStore.{@link #insert}(0, r); // insert a new record into the store (also see {
  * and read the data into Records.
  * @xtype store
  */
-Ext.data.Store = function(config){
-    this.data = new Ext.util.MixedCollection(false);
-    this.data.getKey = function(o){
-        return o.id;
-    };
-    
/**
-     * See the {@link #baseParams corresponding configuration option}
-     * for a description of this property.
-     * To modify this property see {@link #setBaseParam}.
-     * @property
-     */
-    this.baseParams = {};
-
-    // temporary removed-records cache
-    this.removed = [];
-
-    if(config && config.data){
-        this.inlineData = config.data;
-        delete config.data;
-    }
-
-    Ext.apply(this, config);
-
-    this.paramNames = Ext.applyIf(this.paramNames || {}, this.defaultParamNames);
-
-    if(this.url && !this.proxy){
-        this.proxy = new Ext.data.HttpProxy({url: this.url});
-    }
-    // If Store is RESTful, so too is the DataProxy
-    if (this.restful === true && this.proxy) {
-        // When operating RESTfully, a unique transaction is generated for each record.
-        this.batch = false;
-        Ext.data.Api.restify(this.proxy);
-    }
-
-    if(this.reader){ // reader passed
-        if(!this.recordType){
-            this.recordType = this.reader.recordType;
-        }
-        if(this.reader.onMetaChange){
-            //this.reader.onMetaChange = this.onMetaChange.createDelegate(this);
-            this.reader.onMetaChange = this.reader.onMetaChange.createSequence(this.onMetaChange, this);
-        }
-        if (this.writer) { // writer passed
-            this.writer.meta = this.reader.meta;
-            this.pruneModifiedRecords = true;
-        }
-    }
-
-    
/**
-     * The {@link Ext.data.Record Record} constructor as supplied to (or created by) the
-     * {@link Ext.data.DataReader Reader}. Read-only.
-     * 
If the Reader was constructed by passing in an Array of {@link Ext.data.Field} definition objects,
-     * instead of a Record constructor, it will implicitly create a Record constructor from that Array (see
-     * {@link Ext.data.Record}.{@link Ext.data.Record#create create} for additional details).

-     * 
This property may be used to create new Records of the type held in this Store, for example:

-// create the data store
-var store = new Ext.data.ArrayStore({
-    autoDestroy: true,
-    fields: [
-       {name: 'company'},
-       {name: 'price', type: 'float'},
-       {name: 'change', type: 'float'},
-       {name: 'pctChange', type: 'float'},
-       {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
-    ]
-});
-store.loadData(myData);
-
-// create the Grid
-var grid = new Ext.grid.EditorGridPanel({
-    store: store,
-    colModel: new Ext.grid.ColumnModel({
-        columns: [
-            {id:'company', header: 'Company', width: 160, dataIndex: 'company'},
-            {header: 'Price', renderer: 'usMoney', dataIndex: 'price'},
-            {header: 'Change', renderer: change, dataIndex: 'change'},
-            {header: '% Change', renderer: pctChange, dataIndex: 'pctChange'},
-            {header: 'Last Updated', width: 85,
-                renderer: Ext.util.Format.dateRenderer('m/d/Y'),
-                dataIndex: 'lastChange'}
-        ],
-        defaults: {
-            sortable: true,
-            width: 75
-        }
-    }),
-    autoExpandColumn: 'company', // match the id specified in the column model
-    height:350,
-    width:600,
-    title:'Array Grid',
-    tbar: [{
-        text: 'Add Record',
-        handler : function(){
-            var defaultData = {
-                change: 0,
-                company: 'New Company',
-                lastChange: (new Date()).clearTime(),
-                pctChange: 0,
-                price: 10
-            };
-            var recId = 3; // provide unique id
-            var p = new store.recordType(defaultData, recId); // create new record
-            grid.stopEditing();
-            store.{@link #insert}(0, p); // insert a new record into the store (also see {@link #add})
-            grid.startEditing(0, 0);
-        }
-    }]
-});
-     * 

-     * @property recordType
-     * @type Function
-     */
-
-    if(this.recordType){
-        
/**
-         * A {@link Ext.util.MixedCollection MixedCollection} containing the defined {@link Ext.data.Field Field}s
-         * for the {@link Ext.data.Record 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 {@link #add}ed 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 {@link #remove}d 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
-         * @param {Record[]} The records that were cleared.
-         */
-        'clear',
-        
/**
-         * @event exception
-         * 
Fires if an exception occurs in the Proxy during a remote request.
-         * This event is relayed through the corresponding {@link Ext.data.DataProxy}.
-         * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
-         * for additional details.
-         * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
-         * for description.
-         */
-        'exception',
-        
/**
-         * @event beforeload
-         * Fires before a request is made for a new data object.  If the beforeload handler returns
-         * false the {@link #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
-         * 
This event is deprecated in favor of the catch-all {@link #exception}
-         * event instead.

-         * 
This event is relayed through the corresponding {@link Ext.data.DataProxy}.
-         * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
-         * for additional details.
-         * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
-         * for description.
-         */
-        'loadexception',
-        
/**
-         * @event beforewrite
-         * @param {Ext.data.Store} store
-         * @param {String} action [Ext.data.Api.actions.create|update|destroy]
-         * @param {Record/Array[Record]} rs
-         * @param {Object} options The loading options that were specified. Edit options.params to add Http parameters to the request.  (see {@link #save} for details)
-         * @param {Object} arg The callback's arg object passed to the {@link #request} function
-         */
-        'beforewrite',
-        
/**
-         * @event write
-         * Fires if the server returns 200 after an Ext.data.Api.actions CRUD action.
-         * Success of the action is determined in the result['successProperty']property (NOTE for RESTful stores,
-         * a simple 20x response is sufficient for the actions "destroy" and "update".  The "create" action should should return 200 along with a database pk).
-         * @param {Ext.data.Store} store
-         * @param {String} action [Ext.data.Api.actions.create|update|destroy]
-         * @param {Object} result The 'data' picked-out out of the response for convenience.
-         * @param {Ext.Direct.Transaction} res
-         * @param {Record/Record[]} rs Store's records, the subject(s) of the write-action
-         */
-        'write'
-    );
-
-    if(this.proxy){
-        this.relayEvents(this.proxy,  ['loadexception', 'exception']);
-    }
-    // With a writer set for the Store, we want to listen to add/remove events to remotely create/destroy records.
-    if (this.writer) {
-        this.on({
-            scope: this,
-            add: this.createRecords,
-            remove: this.destroyRecord,
-            update: this.updateRecord,
-            clear: this.onClear
-        });
-    }
-
-    this.sortToggle = {};
-    if(this.sortField){
-        this.setDefaultSort(this.sortField, this.sortDir);
-    }else if(this.sortInfo){
-        this.setDefaultSort(this.sortInfo.field, this.sortInfo.direction);
-    }
-
-    Ext.data.Store.superclass.constructor.call(this);
-
-    if(this.id){
-        this.storeId = this.id;
-        delete this.id;
-    }
-    if(this.storeId){
-        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, {
+Ext.data.Store = Ext.extend(Ext.util.Observable, {
     
/**
      * @cfg {String} storeId If passed, the id to use to register with the {@link Ext.StoreMgr StoreMgr}.
      * 
Note: if a (deprecated) {@link #id} is specified it will supersede the storeId
@@ -540,6 +260,334 @@ sortInfo: {
         dir : 'dir'
     },
 
+    // private
+    batchKey : '_ext_batch_',
+
+    constructor : function(config){
+        this.data = new Ext.util.MixedCollection(false);
+        this.data.getKey = function(o){
+            return o.id;
+        };
+
+
+        // temporary removed-records cache
+        this.removed = [];
+
+        if(config && config.data){
+            this.inlineData = config.data;
+            delete config.data;
+        }
+
+        Ext.apply(this, config);
+
+        
/**
+         * See the {@link #baseParams corresponding configuration option}
+         * for a description of this property.
+         * To modify this property see {@link #setBaseParam}.
+         * @property
+         */
+        this.baseParams = Ext.isObject(this.baseParams) ? this.baseParams : {};
+
+        this.paramNames = Ext.applyIf(this.paramNames || {}, this.defaultParamNames);
+
+        if((this.url || this.api) && !this.proxy){
+            this.proxy = new Ext.data.HttpProxy({url: this.url, api: this.api});
+        }
+        // If Store is RESTful, so too is the DataProxy
+        if (this.restful === true && this.proxy) {
+            // When operating RESTfully, a unique transaction is generated for each record.
+            // TODO might want to allow implemention of faux REST where batch is possible using RESTful routes only.
+            this.batch = false;
+            Ext.data.Api.restify(this.proxy);
+        }
+
+        if(this.reader){ // reader passed
+            if(!this.recordType){
+                this.recordType = this.reader.recordType;
+            }
+            if(this.reader.onMetaChange){
+                this.reader.onMetaChange = this.reader.onMetaChange.createSequence(this.onMetaChange, this);
+            }
+            if (this.writer) { // writer passed
+                if (this.writer instanceof(Ext.data.DataWriter) === false) {    // <-- config-object instead of instance.
+                    this.writer = this.buildWriter(this.writer);
+                }
+                this.writer.meta = this.reader.meta;
+                this.pruneModifiedRecords = true;
+            }
+        }
+
+        
/**
+         * The {@link Ext.data.Record Record} constructor as supplied to (or created by) the
+         * {@link Ext.data.DataReader Reader}. Read-only.
+         * 
If the Reader was constructed by passing in an Array of {@link Ext.data.Field} definition objects,
+         * instead of a Record constructor, it will implicitly create a Record constructor from that Array (see
+         * {@link Ext.data.Record}.{@link Ext.data.Record#create create} for additional details).

+         * 
This property may be used to create new Records of the type held in this Store, for example:

+    // create the data store
+    var store = new Ext.data.ArrayStore({
+        autoDestroy: true,
+        fields: [
+           {name: 'company'},
+           {name: 'price', type: 'float'},
+           {name: 'change', type: 'float'},
+           {name: 'pctChange', type: 'float'},
+           {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
+        ]
+    });
+    store.loadData(myData);
+
+    // create the Grid
+    var grid = new Ext.grid.EditorGridPanel({
+        store: store,
+        colModel: new Ext.grid.ColumnModel({
+            columns: [
+                {id:'company', header: 'Company', width: 160, dataIndex: 'company'},
+                {header: 'Price', renderer: 'usMoney', dataIndex: 'price'},
+                {header: 'Change', renderer: change, dataIndex: 'change'},
+                {header: '% Change', renderer: pctChange, dataIndex: 'pctChange'},
+                {header: 'Last Updated', width: 85,
+                    renderer: Ext.util.Format.dateRenderer('m/d/Y'),
+                    dataIndex: 'lastChange'}
+            ],
+            defaults: {
+                sortable: true,
+                width: 75
+            }
+        }),
+        autoExpandColumn: 'company', // match the id specified in the column model
+        height:350,
+        width:600,
+        title:'Array Grid',
+        tbar: [{
+            text: 'Add Record',
+            handler : function(){
+                var defaultData = {
+                    change: 0,
+                    company: 'New Company',
+                    lastChange: (new Date()).clearTime(),
+                    pctChange: 0,
+                    price: 10
+                };
+                var recId = 3; // provide unique id
+                var p = new store.recordType(defaultData, recId); // create new record
+                grid.stopEditing();
+                store.{@link #insert}(0, p); // insert a new record into the store (also see {@link #add})
+                grid.startEditing(0, 0);
+            }
+        }]
+    });
+         * 

+         * @property recordType
+         * @type Function
+         */
+
+        if(this.recordType){
+            
/**
+             * A {@link Ext.util.MixedCollection MixedCollection} containing the defined {@link Ext.data.Field Field}s
+             * for the {@link Ext.data.Record 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 {@link #add}ed 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 {@link #remove}d 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
+             * @param {Record[]} The records that were cleared.
+             */
+            'clear',
+            
/**
+             * @event exception
+             * 
Fires if an exception occurs in the Proxy during a remote request.
+             * This event is relayed through the corresponding {@link Ext.data.DataProxy}.
+             * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
+             * for additional details.
+             * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#exception exception}
+             * for description.
+             */
+            'exception',
+            
/**
+             * @event beforeload
+             * Fires before a request is made for a new data object.  If the beforeload handler returns
+             * false the {@link #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
+             * 
This event is deprecated in favor of the catch-all {@link #exception}
+             * event instead.

+             * 
This event is relayed through the corresponding {@link Ext.data.DataProxy}.
+             * See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
+             * for additional details.
+             * @param {misc} misc See {@link Ext.data.DataProxy}.{@link Ext.data.DataProxy#loadexception loadexception}
+             * for description.
+             */
+            'loadexception',
+            
/**
+             * @event beforewrite
+             * @param {Ext.data.Store} store
+             * @param {String} action [Ext.data.Api.actions.create|update|destroy]
+             * @param {Record/Array[Record]} rs
+             * @param {Object} options The loading options that were specified. Edit options.params to add Http parameters to the request.  (see {@link #save} for details)
+             * @param {Object} arg The callback's arg object passed to the {@link #request} function
+             */
+            'beforewrite',
+            
/**
+             * @event write
+             * Fires if the server returns 200 after an Ext.data.Api.actions CRUD action.
+             * Success of the action is determined in the result['successProperty']property (NOTE for RESTful stores,
+             * a simple 20x response is sufficient for the actions "destroy" and "update".  The "create" action should should return 200 along with a database pk).
+             * @param {Ext.data.Store} store
+             * @param {String} action [Ext.data.Api.actions.create|update|destroy]
+             * @param {Object} result The 'data' picked-out out of the response for convenience.
+             * @param {Ext.Direct.Transaction} res
+             * @param {Record/Record[]} rs Store's records, the subject(s) of the write-action
+             */
+            'write',
+            
/**
+             * @event beforesave
+             * Fires before a save action is called. A save encompasses destroying records, updating records and creating records.
+             * @param {Ext.data.Store} store
+             * @param {Object} data An object containing the data that is to be saved. The object will contain a key for each appropriate action,
+             * with an array of records for each action.
+             */
+            'beforesave',
+            
/**
+             * @event save
+             * Fires after a save is completed. A save encompasses destroying records, updating records and creating records.
+             * @param {Ext.data.Store} store
+             * @param {Number} batch The identifier for the batch that was saved.
+             * @param {Object} data An object containing the data that is to be saved. The object will contain a key for each appropriate action,
+             * with an array of records for each action.
+             */
+            'save'
+
+        );
+
+        if(this.proxy){
+            // TODO remove deprecated loadexception with ext-3.0.1
+            this.relayEvents(this.proxy,  ['loadexception', 'exception']);
+        }
+        // With a writer set for the Store, we want to listen to add/remove events to remotely create/destroy records.
+        if (this.writer) {
+            this.on({
+                scope: this,
+                add: this.createRecords,
+                remove: this.destroyRecord,
+                update: this.updateRecord,
+                clear: this.onClear
+            });
+        }
+
+        this.sortToggle = {};
+        if(this.sortField){
+            this.setDefaultSort(this.sortField, this.sortDir);
+        }else if(this.sortInfo){
+            this.setDefaultSort(this.sortInfo.field, this.sortInfo.direction);
+        }
+
+        Ext.data.Store.superclass.constructor.call(this);
+
+        if(this.id){
+            this.storeId = this.id;
+            delete this.id;
+        }
+        if(this.storeId){
+            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]);
+        }
+        // used internally to uniquely identify a batch
+        this.batchCounter = 0;
+        this.batches = {};
+    },
+
+    /**
+     * builds a DataWriter instance when Store constructor is provided with a writer config-object instead of an instace.
+     * @param {Object} config Writer configuration
+     * @return {Ext.data.DataWriter}
+     * @private
+     */
+    buildWriter : function(config) {
+        var klass = undefined,
+            type = (config.format || 'json').toLowerCase();
+        switch (type) {
+            case 'json':
+                klass = Ext.data.JsonWriter;
+                break;
+            case 'xml':
+                klass = Ext.data.XmlWriter;
+                break;
+            default:
+                klass = Ext.data.JsonWriter;
+        }
+        return new klass(config);
+    },
+
     
/**
      * Destroys the store.
      */
@@ -591,20 +639,27 @@ sortInfo: {
     },
 
     
/**
-     * 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 Records from the Store and fires the {@link #remove} event.
+     * @param {Ext.data.Record/Ext.data.Record[]} record The record object or array of records to remove from the cache.
      */
     remove : function(record){
+        if(Ext.isArray(record)){
+            Ext.each(record, function(r){
+                this.remove(r);
+            }, this);
+        }
         var index = this.data.indexOf(record);
         if(index > -1){
             record.join(null);
             this.data.removeAt(index);
-            if(this.pruneModifiedRecords){
-                this.modified.remove(record);
-            }
-            if(this.snapshot){
-                this.snapshot.remove(record);
-            }
+        }
+        if(this.pruneModifiedRecords){
+            this.modified.remove(record);
+        }
+        if(this.snapshot){
+            this.snapshot.remove(record);
+        }
+        if(index > -1){
             this.fireEvent('remove', this, record, index);
         }
     },
@@ -619,8 +674,9 @@ sortInfo: {
 
     
/**
      * Remove all Records from the Store and fires the {@link #clear} event.
+     * @param {Boolean} silent [false] Defaults to false.  Set true to not fire clear event.
      */
-    removeAll : function(){
+    removeAll : function(silent){
         var items = [];
         this.each(function(rec){
             items.push(rec);
@@ -632,7 +688,9 @@ sortInfo: {
         if(this.pruneModifiedRecords){
             this.modified = [];
         }
-        this.fireEvent('clear', this, items);
+        if (silent !== true) {  // <-- prevents write-actions when we just want to clear a store.
+            this.fireEvent('clear', this, items);
+        }
     },
 
     // private
@@ -654,6 +712,9 @@ sortInfo: {
             this.data.insert(index, records[i]);
             records[i].join(this);
         }
+        if(this.snapshot){
+            this.snapshot.addAll(records);
+        }
         this.fireEvent('add', this, records, index);
     },
 
@@ -681,7 +742,7 @@ sortInfo: {
      * @return {Ext.data.Record} The Record with the passed id. Returns undefined if not found.
      */
     getById : function(id){
-        return this.data.key(id);
+        return (this.snapshot || this.data).key(id);
     },
 
     
/**
@@ -737,14 +798,14 @@ sortInfo: {
      * parameters to a remote data source. Note: params will override any
      * {@link #baseParams} of the same name.

      * 
Parameters are encoded as standard HTTP parameters using {@link Ext#urlEncode}.

-     * 
  • callback : Function
    A function to be called after the Records
-     * have been loaded. The callback is called after the load event and 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
+     * 
  • callback : Function
    A function to be called after the Records
+     * have been loaded. The callback is called after the load event is fired, and is passed the following arguments:
      
+     * 
    • r : Ext.data.Record[] An Array of Records loaded.
      • 
+     * 
    • 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
+     * 
  • add : Boolean
    Indicator to append loaded records rather than
      * replace the current cache.  Note: see note for {@link #loadData}
    • 
      * 
      * @return {Boolean} If the developer provided {@link #beforeload} event handler returns
@@ -776,7 +837,7 @@ sortInfo: {
      * @private
      */
     updateRecord : function(store, record, action) {
-        if (action == Ext.data.Record.EDIT && this.autoSave === true && (!record.phantom || (record.phantom && record.isValid))) {
+        if (action == Ext.data.Record.EDIT && this.autoSave === true && (!record.phantom || (record.phantom && record.isValid()))) {
             this.save();
         }
     },
@@ -835,23 +896,25 @@ sortInfo: {
      * @throws Error
      * @private
      */
-    execute : function(action, rs, options) {
+    execute : function(action, rs, options, /* private */ batch) {
         // blow up if action not Ext.data.CREATE, READ, UPDATE, DESTROY
         if (!Ext.data.Api.isAction(action)) {
             throw new Ext.data.Api.Error('execute', action);
         }
-        // make sure options has a params key
+        // make sure options has a fresh, new params hash
         options = Ext.applyIf(options||{}, {
             params: {}
         });
-
+        if(batch !== undefined){
+            this.addToBatch(batch);
+        }
         // have to separate before-events since load has a different signature than create,destroy and save events since load does not
         // include the rs (record resultset) parameter.  Capture return values from the beforeaction into doRequest flag.
         var doRequest = true;
 
         if (action === 'read') {
-            Ext.applyIf(options.params, this.baseParams);
             doRequest = this.fireEvent('beforeload', this, options);
+            Ext.applyIf(options.params, this.baseParams);
         }
         else {
             // if Writer is configured as listful, force single-record rs to be [{}] instead of {}
@@ -865,19 +928,20 @@ sortInfo: {
             }
             // Write the action to options.params
             if ((doRequest = this.fireEvent('beforewrite', this, action, rs, options)) !== false) {
-                this.writer.write(action, options.params, rs);
+                this.writer.apply(options.params, this.baseParams, action, rs);
             }
         }
         if (doRequest !== false) {
             // Send request to proxy.
-            var params = Ext.apply({}, options.params, this.baseParams);
             if (this.writer && this.proxy.url && !this.proxy.restful && !Ext.data.Api.hasUniqueUrl(this.proxy, action)) {
-                params.xaction = action;    // <-- really old, probaby unecessary.
+                options.params.xaction = action;    // <-- really old, probaby unecessary.
             }
             // Note:  Up until this point we've been dealing with 'action' as a key from Ext.data.Api.actions.
             // We'll flip it now and send the value into DataProxy#request, since it's the value which maps to
             // the user's configured DataProxy#api
-            this.proxy.request(Ext.data.Api.actions[action], rs, params, this.reader, this.createCallback(action, rs), this, options);
+            // TODO Refactor all Proxies to accept an instance of Ext.data.Request (not yet defined) instead of this looooooong list
+            // of params.  This method is an artifact from Ext2.
+            this.proxy.request(Ext.data.Api.actions[action], rs, options.params, this.reader, this.createCallback(action, rs, batch), this, options);
         }
         return doRequest;
     },
@@ -894,68 +958,125 @@ sortInfo: {
      * 
    
      * @TODO:  Create extensions of Error class and send associated Record with thrown exceptions.
      * e.g.:  Ext.data.DataReader.Error or Ext.data.Error or Ext.data.DataProxy.Error, etc.
+     * @return {Number} batch Returns a number to uniquely identify the "batch" of saves occurring. -1 will be returned
+     * if there are no items to save or the save was cancelled.
      */
     save : function() {
         if (!this.writer) {
             throw new Ext.data.Store.Error('writer-undefined');
         }
 
+        var queue = [],
+            len,
+            trans,
+            batch,
+            data = {};
         // DESTROY:  First check for removed records.  Records in this.removed are guaranteed non-phantoms.  @see Store#remove
-        if (this.removed.length) {
-            this.doTransaction('destroy', this.removed);
+        if(this.removed.length){
+            queue.push(['destroy', this.removed]);
         }
 
         // Check for modified records. Use a copy so Store#rejectChanges will work if server returns error.
         var rs = [].concat(this.getModifiedRecords());
-        if (!rs.length) { // Bail-out if empty...
-            return true;
-        }
-
-        // CREATE:  Next check for phantoms within rs.  splice-off and execute create.
-        var phantoms = [];
-        for (var i = rs.length-1; i >= 0; i--) {
-            if (rs[i].phantom === true) {
-                var rec = rs.splice(i, 1).shift();
-                if (rec.isValid()) {
-                    phantoms.push(rec);
+        if(rs.length){
+            // CREATE:  Next check for phantoms within rs.  splice-off and execute create.
+            var phantoms = [];
+            for(var i = rs.length-1; i >= 0; i--){
+                if(rs[i].phantom === true){
+                    var rec = rs.splice(i, 1).shift();
+                    if(rec.isValid()){
+                        phantoms.push(rec);
+                    }
+                }else if(!rs[i].isValid()){ // <-- while we're here, splice-off any !isValid real records
+                    rs.splice(i,1);
                 }
-            } else if (!rs[i].isValid()) { // <-- while we're here, splice-off any !isValid real records
-                rs.splice(i,1);
             }
-        }
-        // If we have valid phantoms, create them...
-        if (phantoms.length) {
-            this.doTransaction('create', phantoms);
-        }
+            // If we have valid phantoms, create them...
+            if(phantoms.length){
+                queue.push(['create', phantoms]);
+            }
 
-        // UPDATE:  And finally, if we're still here after splicing-off phantoms and !isValid real records, update the rest...
-        if (rs.length) {
-            this.doTransaction('update', rs);
+            // UPDATE:  And finally, if we're still here after splicing-off phantoms and !isValid real records, update the rest...
+            if(rs.length){
+                queue.push(['update', rs]);
+            }
         }
-        return true;
+        len = queue.length;
+        if(len){
+            batch = ++this.batchCounter;
+            for(var i = 0; i < len; ++i){
+                trans = queue[i];
+                data[trans[0]] = trans[1];
+            }
+            if(this.fireEvent('beforesave', this, data) !== false){
+                for(var i = 0; i < len; ++i){
+                    trans = queue[i];
+                    this.doTransaction(trans[0], trans[1], batch);
+                }
+                return batch;
+            }
+        }
+        return -1;
     },
 
     // private.  Simply wraps call to Store#execute in try/catch.  Defers to Store#handleException on error.  Loops if batch: false
-    doTransaction : function(action, rs) {
+    doTransaction : function(action, rs, batch) {
         function transaction(records) {
-            try {
-                this.execute(action, records);
-            } catch (e) {
+            try{
+                this.execute(action, records, undefined, batch);
+            }catch (e){
                 this.handleException(e);
             }
         }
-        if (this.batch === false) {
-            for (var i = 0, len = rs.length; i < len; i++) {
+        if(this.batch === false){
+            for(var i = 0, len = rs.length; i < len; i++){
                 transaction.call(this, rs[i]);
             }
-        } else {
+        }else{
             transaction.call(this, rs);
         }
     },
 
+    // private
+    addToBatch : function(batch){
+        var b = this.batches,
+            key = this.batchKey + batch,
+            o = b[key];
+
+        if(!o){
+            b[key] = o = {
+                id: batch,
+                count: 0,
+                data: {}
+            }
+        }
+        ++o.count;
+    },
+
+    removeFromBatch : function(batch, action, data){
+        var b = this.batches,
+            key = this.batchKey + batch,
+            o = b[key],
+            data,
+            arr;
+
+
+        if(o){
+            arr = o.data[action] || [];
+            o.data[action] = arr.concat(data);
+            if(o.count === 1){
+                data = o.data;
+                delete b[key];
+                this.fireEvent('save', this, batch, data);
+            }else{
+                --o.count;
+            }
+        }
+    },
+
     // @private callback-handler for remote CRUD actions
     // Do not override -- override loadRecords, onCreateRecords, onDestroyRecords and onUpdateRecords instead.
-    createCallback : function(action, rs) {
+    createCallback : function(action, rs, batch) {
         var actions = Ext.data.Api.actions;
         return (action == 'read') ? this.loadRecords : function(data, response, success) {
             // calls: onCreateRecords | onUpdateRecords | onDestroyRecords
@@ -964,6 +1085,7 @@ sortInfo: {
             if (success === true) {
                 this.fireEvent('write', this, action, data, response, rs);
             }
+            this.removeFromBatch(batch, action, data);
         };
     },
 
@@ -1050,12 +1172,22 @@ sortInfo: {
     },
 
     
    /**
-     * 
    Reloads the Record cache from the configured Proxy using the configured {@link Ext.data.Reader Reader} and
-     * the options from the last load operation performed.
    
+     * 
    Reloads the Record cache from the configured Proxy using the configured
+     * {@link Ext.data.Reader Reader} and the options from the last load operation
+     * performed.
    
      * 
    Note: see the Important note in {@link #load}.
    
-     * @param {Object} options (optional) An Object containing {@link #load loading options} which may
-     * override the options used in the last {@link #load} operation. See {@link #load} for details (defaults to
-     * null, in which case the {@link #lastOptions} are used).
+     * @param {Object} options 
    (optional) An Object containing
+     * {@link #load loading options} which may override the {@link #lastOptions options}
+     * used in the last {@link #load} operation. See {@link #load} for details
+     * (defaults to null, in which case the {@link #lastOptions} are
+     * used).
    
+     * 
    To add new params to the existing params:
    
+lastOptions = myStore.lastOptions;
+Ext.apply(lastOptions.params, {
+    myNewParam: true
+});
+myStore.reload(lastOptions);
+     * 
    
      */
     reload : function(options){
         this.load(Ext.applyIf(options||{}, this.lastOptions));
@@ -1064,6 +1196,9 @@ sortInfo: {
     // private
     // Called as a callback by the Reader during a load operation.
     loadRecords : function(o, options, success){
+        if (this.isDestroyed === true) {
+            return;
+        }
         if(!o || success === false){
             if(success !== false){
                 this.fireEvent('load', this, [], options);
@@ -1231,7 +1366,8 @@ sortInfo: {
      * Calls the specified function for each of the {@link Ext.data.Record Records} in the cache.
      * @param {Function} fn The function to call. The {@link Ext.data.Record 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 {@link Ext.data.Record Record}).
+     * @param {Object} scope (optional) The scope (this reference) in which the function is executed.
+     * Defaults to the current {@link Ext.data.Record Record} in the iteration.
      */
     each : function(fn, scope){
         this.data.each(fn, scope);
@@ -1302,7 +1438,7 @@ sortInfo: {
      * to test for filtering. Access field values using {@link Ext.data.Record#get}.
    
      * 
  • id : Object
    The ID of the Record passed.
    • 
      * 
-     * @param {Object} scope (optional) The scope of the function (defaults to this)
+     * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to this Store.
      */
     filterBy : function(fn, scope){
         this.snapshot = this.snapshot || this.data;
@@ -1333,7 +1469,7 @@ sortInfo: {
      * to test for filtering. Access field values using {@link Ext.data.Record#get}.
    
      * 
  • id : Object
    The ID of the Record passed.
    • 
      * 
-     * @param {Object} scope (optional) The scope of the function (defaults to this)
+     * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to this Store.
      * @return {MixedCollection} Returns an Ext.util.MixedCollection of the matched records
      **/
     queryBy : function(fn, scope){
@@ -1342,10 +1478,10 @@ sortInfo: {
     },
 
     
    /**
-     * 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.
+     * Finds the index of the first matching Record in this store by a specific field value.
+     * @param {String} fieldName The name of the Record field to test.
+     * @param {String/RegExp} value Either a string that the field value
+     * should begin with, or a RegExp to test against the field.
      * @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
@@ -1357,9 +1493,9 @@ sortInfo: {
     },
 
     
    /**
-     * 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 The value to match against
+     * Finds the index of the first matching Record in this store by a specific field value.
+     * @param {String} fieldName The name of the Record field to test.
+     * @param {Mixed} value The value to match the field against.
      * @param {Number} startIndex (optional) The index to start searching at
      * @return {Number} The matched index or -1
      */
@@ -1377,7 +1513,7 @@ sortInfo: {
      * to test for filtering. Access field values using {@link Ext.data.Record#get}.
    
      * 
  • id : Object
    The ID of the Record passed.
    • 
      * 
-     * @param {Object} scope (optional) The scope of the function (defaults to this)
+     * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to this Store.
      * @param {Number} startIndex (optional) The index to start searching at
      * @return {Number} The matched index or -1
      */
@@ -1538,7 +1674,6 @@ Ext.apply(Ext.data.Store.Error.prototype, {
         'writer-undefined' : 'Attempted to execute a write-action without a DataWriter installed.'
     }
 });
-
-
    - + + \ No newline at end of file