New file |
0,0 → 1,812 |
/* |
* Ext JS Library 2.0.2 |
* Copyright(c) 2006-2008, 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}</p> |
* <p>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.</p> |
* <p>A Store object has no knowledge of the format of the data returned by the Proxy.</p> |
* <p>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.</p> |
* @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. |
* @property |
*/ |
this.baseParams = {}; |
// private |
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); |
} |
} |
|
if(this.recordType){ |
this.fields = this.recordType.prototype.fields; |
} |
this.modified = []; |
|
this.addEvents( |
/** |
* @event datachanged |
* Fires when the data cache has changed, and a widget which 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: |
* <pre><code> |
Ext.data.Record.EDIT |
Ext.data.Record.REJECT |
Ext.data.Record.COMMIT |
* </code></pre> |
*/ |
'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 <em>id</em> 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"}. 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). |
* <p>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: |
* <div class="mdetail-params"><ul> |
* <li><b>sort</b> : String<p class="sub-desc">The name (as specified in |
* the Record's Field definition) of the field to sort on.</p></li> |
* <li><b>dir</b> : String<p class="sub-desc">The direction of the sort, "ASC" or "DESC" (case-sensitive).</p></li> |
* </ul></div></p> |
*/ |
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.id){ |
Ext.StoreMgr.unregister(this); |
} |
this.data = null; |
this.purgeListeners(); |
}, |
|
/** |
* Add Records to the Store and fires the 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 the record in 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 remove event. |
* @param {Ext.data.Record} record Th 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 all Records from the Store and fires the clear event. |
*/ |
removeAll : function(){ |
this.data.clear(); |
if(this.snapshot){ |
this.snapshot.clear(); |
} |
if(this.pruneModifiedRecords){ |
this.modified = []; |
} |
this.fireEvent("clear", this); |
}, |
|
/** |
* Inserts Records to the Store at the given index and fires the 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 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. |
* <p>If using remote paging, then the first load call must specify the <tt>start</tt> |
* and <tt>limit</tt> 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.</p> |
* <p><b>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.</b></p> |
* @param {Object} options An object containing properties which control loading options:<ul> |
* <li><b>params</b> :Object<p class="sub-desc">An object containing properties to pass as HTTP parameters to a remote data source.</p></li> |
* <li><b>callback</b> : Function<p class="sub-desc">A function to be called after the Records have been loaded. The callback is |
* passed the following arguments:<ul> |
* <li>r : Ext.data.Record[]</li> |
* <li>options: Options object from the load call</li> |
* <li>success: Boolean success indicator</li></ul></p></li> |
* <li><b>scope</b> : Object<p class="sub-desc">Scope with which to call the callback (defaults to the Store object)</p></li> |
* <li><b>add</b> : Boolean<p class="sub-desc">Indicator to append loaded records rather than replace the current cache.</p></li> |
* </ul> |
* @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. |
* @param {Object} options (optional) An object containing properties 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. 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} append (Optional) True to append the new Records rather than replace the existing cache. |
*/ |
loadData : function(o, append){ |
var r = this.reader.readRecords(o); |
this.loadRecords(r, {add: append}, true); |
}, |
|
/** |
* Gets the number of cached records. |
* <p>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.</p> |
* @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. |
* <p>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.</p> |
* @return {Number} The number of Records as specified in the data object passed to the Reader |
* by the Proxy |
* <p><b>This value is not updated when changing the contents of the Store locally.</b></p> |
*/ |
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:<ul> |
* <li><b>field : String<p class="sub-desc">The name of the field by which the Records are sorted.</p></li> |
* <li><b>direction : String<p class="sub-desc">The sort order, "ASC" or "DESC" (case-sensitive).</p></li> |
* </ul> |
*/ |
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 <tt>false</tt> 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 <i>property</i> 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 start 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 <tt>true</tt> the Record is included, |
* otherwise it is filtered out. |
* @param {Function} fn The function to be called. It will be passed the following parameters:<ul> |
* <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record} |
* to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li> |
* <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li> |
* </ul> |
* @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 start 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 <tt>true</tt> the record is |
* included in the results. |
* @param {Function} fn The function to be called. It will be passed the following parameters:<ul> |
* <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record} |
* to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li> |
* <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li> |
* </ul> |
* @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 string that the property values |
* should start 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 <tt>true</tt> it is considered a match. |
* @param {Function} fn The function to be called. It will be passed the following parameters:<ul> |
* <li><b>record</b> : Ext.data.Record<p class="sub-desc">The {@link Ext.data.Record record} |
* to test for filtering. Access field values using {@link Ext.data.Record#get}.</p></li> |
* <li><b>id</b> : Object<p class="sub-desc">The ID of the Record passed.</p></li> |
* </ul> |
* @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; |
} |
}); |