GZ/nwyj/.svn/pristine/c2/c2a5177d11e2a0a02a4667f3dff5f501b0e69e98.svn-base

/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

Ext.data.Store = function(A) {
	this.data = new Ext.util.MixedCollection(false);
	this.data.getKey = function(B) {
		return B.id
	};
	this.baseParams = {};
	this.paramNames = {
		"start" : "start",
		"limit" : "limit",
		"sort" : "sort",
		"dir" : "dir"
	};
	if (A && A.data) {
		this.inlineData = A.data;
		delete A.data
	}
	Ext.apply(this, A);
	if (this.url && !this.proxy) {
		this.proxy = new Ext.data.HttpProxy({
					url : this.url
				})
	}
	if (this.reader) {
		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("datachanged", "metachange", "add", "remove", "update",
			"clear", "beforeload", "load", "loadexception");
	if (this.proxy) {
		this.relayEvents(this.proxy, ["loadexception"])
	}
	this.sortToggle = {};
	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, {
			remoteSort : false,
			pruneModifiedRecords : false,
			lastOptions : null,
			destroy : function() {
				if (this.id) {
					Ext.StoreMgr.unregister(this)
				}
				this.data = null;
				this.purgeListeners()
			},
			add : function(B) {
				B = [].concat(B);
				if (B.length < 1) {
					return
				}
				for (var D = 0, A = B.length; D < A; D++) {
					B[D].join(this)
				}
				var C = this.data.length;
				this.data.addAll(B);
				if (this.snapshot) {
					this.snapshot.addAll(B)
				}
				this.fireEvent("add", this, B, C)
			},
			addSorted : function(A) {
				var B = this.findInsertIndex(A);
				this.insert(B, A)
			},
			remove : function(A) {
				var B = this.data.indexOf(A);
				this.data.removeAt(B);
				if (this.pruneModifiedRecords) {
					this.modified.remove(A)
				}
				if (this.snapshot) {
					this.snapshot.remove(A)
				}
				this.fireEvent("remove", this, A, B)
			},
			removeAll : function() {
				this.data.clear();
				if (this.snapshot) {
					this.snapshot.clear()
				}
				if (this.pruneModifiedRecords) {
					this.modified = []
				}
				this.fireEvent("clear", this)
			},
			insert : function(C, B) {
				B = [].concat(B);
				for (var D = 0, A = B.length; D < A; D++) {
					this.data.insert(C, B[D]);
					B[D].join(this)
				}
				this.fireEvent("add", this, B, C)
			},
			indexOf : function(A) {
				return this.data.indexOf(A)
			},
			indexOfId : function(A) {
				return this.data.indexOfKey(A)
			},
			getById : function(A) {
				return this.data.key(A)
			},
			getAt : function(A) {
				return this.data.itemAt(A)
			},
			getRange : function(B, A) {
				return this.data.getRange(B, A)
			},
			storeOptions : function(A) {
				A = Ext.apply({}, A);
				delete A.callback;
				delete A.scope;
				this.lastOptions = A
			},
			load : function(B) {
				B = B || {};
				if (this.fireEvent("beforeload", this, B) !== false) {
					this.storeOptions(B);
					var C = Ext.apply(B.params || {}, this.baseParams);
					if (this.sortInfo && this.remoteSort) {
						var A = this.paramNames;
						C[A["sort"]] = this.sortInfo.field;
						C[A["dir"]] = this.sortInfo.direction
					}
					this.proxy.load(C, this.reader, this.loadRecords, this, B)
				}
			},
			reload : function(A) {
				this.load(Ext.applyIf(A || {}, this.lastOptions))
			},
			loadRecords : function(G, B, F) {
				if (!G || F === false) {
					if (F !== false) {
						this.fireEvent("load", this, [], B)
					}
					if (B.callback) {
						B.callback.call(B.scope || this, [], B, false)
					}
					return
				}
				var E = G.records, D = G.totalRecords || E.length;
				if (!B || B.add !== true) {
					if (this.pruneModifiedRecords) {
						this.modified = []
					}
					for (var C = 0, A = E.length; C < A; C++) {
						E[C].join(this)
					}
					if (this.snapshot) {
						this.data = this.snapshot;
						delete this.snapshot
					}
					this.data.clear();
					this.data.addAll(E);
					this.totalLength = D;
					this.applySort();
					this.fireEvent("datachanged", this)
				} else {
					this.totalLength = Math.max(D, this.data.length + E.length);
					this.add(E)
				}
				this.fireEvent("load", this, E, B);
				if (B.callback) {
					B.callback.call(B.scope || this, E, B, true)
				}
			},
			loadData : function(C, A) {
				var B = this.reader.readRecords(C);
				this.loadRecords(B, {
							add : A
						}, true)
			},
			getCount : function() {
				return this.data.length || 0
			},
			getTotalCount : function() {
				return this.totalLength || 0
			},
			getSortState : function() {
				return this.sortInfo
			},
			applySort : function() {
				if (this.sortInfo && !this.remoteSort) {
					var A = this.sortInfo, B = A.field;
					this.sortData(B, A.direction)
				}
			},
			sortData : function(C, D) {
				D = D || "ASC";
				var A = this.fields.get(C).sortType;
				var B = function(F, E) {
					var H = A(F.data[C]), G = A(E.data[C]);
					return H > G ? 1 : (H < G ? -1 : 0)
				};
				this.data.sort(D, B);
				if (this.snapshot && this.snapshot != this.data) {
					this.snapshot.sort(D, B)
				}
			},
			setDefaultSort : function(B, A) {
				A = A ? A.toUpperCase() : "ASC";
				this.sortInfo = {
					field : B,
					direction : A
				};
				this.sortToggle[B] = A
			},
			sort : function(C, A) {
				var B = this.fields.get(C);
				if (!B) {
					return false
				}
				if (!A) {
					if (this.sortInfo && this.sortInfo.field == B.name) {
						A = (this.sortToggle[B.name] || "ASC").toggle("ASC",
								"DESC")
					} else {
						A = B.sortDir
					}
				}
				this.sortToggle[B.name] = A;
				this.sortInfo = {
					field : B.name,
					direction : A
				};
				if (!this.remoteSort) {
					this.applySort();
					this.fireEvent("datachanged", this)
				} else {
					this.load(this.lastOptions)
				}
			},
			each : function(B, A) {
				this.data.each(B, A)
			},
			getModifiedRecords : function() {
				return this.modified
			},
			createFilterFn : function(C, B, D, A) {
				if (Ext.isEmpty(B, false)) {
					return false
				}
				B = this.data.createValueMatcher(B, D, A);
				return function(E) {
					return B.test(E.data[C])
				}
			},
			sum : function(E, F, A) {
				var C = this.data.items, B = 0;
				F = F || 0;
				A = (A || A === 0) ? A : C.length - 1;
				for (var D = F; D <= A; D++) {
					B += (C[D].data[E] || 0)
				}
				return B
			},
			filter : function(D, C, E, A) {
				var B = this.createFilterFn(D, C, E, A);
				return B ? this.filterBy(B) : this.clearFilter()
			},
			filterBy : function(B, A) {
				this.snapshot = this.snapshot || this.data;
				this.data = this.queryBy(B, A || this);
				this.fireEvent("datachanged", this)
			},
			query : function(D, C, E, A) {
				var B = this.createFilterFn(D, C, E, A);
				return B ? this.queryBy(B) : this.data.clone()
			},
			queryBy : function(B, A) {
				var C = this.snapshot || this.data;
				return C.filterBy(B, A || this)
			},
			find : function(D, C, F, E, A) {
				var B = this.createFilterFn(D, C, E, A);
				return B ? this.data.findIndexBy(B, null, F) : -1
			},
			findBy : function(B, A, C) {
				return this.data.findIndexBy(B, A, C)
			},
			collect : function(G, H, B) {
				var F = (B === true && this.snapshot)
						? this.snapshot.items
						: this.data.items;
				var I, J, A = [], C = {};
				for (var D = 0, E = F.length; D < E; D++) {
					I = F[D].data[G];
					J = String(I);
					if ((H || !Ext.isEmpty(I)) && !C[J]) {
						C[J] = true;
						A[A.length] = I
					}
				}
				return A
			},
			clearFilter : function(A) {
				if (this.isFiltered()) {
					this.data = this.snapshot;
					delete this.snapshot;
					if (A !== true) {
						this.fireEvent("datachanged", this)
					}
				}
			},
			isFiltered : function() {
				return this.snapshot && this.snapshot != this.data
			},
			afterEdit : function(A) {
				if (this.modified.indexOf(A) == -1) {
					this.modified.push(A)
				}
				this.fireEvent("update", this, A, Ext.data.Record.EDIT)
			},
			afterReject : function(A) {
				this.modified.remove(A);
				this.fireEvent("update", this, A, Ext.data.Record.REJECT)
			},
			afterCommit : function(A) {
				this.modified.remove(A);
				this.fireEvent("update", this, A, Ext.data.Record.COMMIT)
			},
			commitChanges : function() {
				var B = this.modified.slice(0);
				this.modified = [];
				for (var C = 0, A = B.length; C < A; C++) {
					B[C].commit()
				}
			},
			rejectChanges : function() {
				var B = this.modified.slice(0);
				this.modified = [];
				for (var C = 0, A = B.length; C < A; C++) {
					B[C].reject()
				}
			},
			onMetaChange : function(B, A, C) {
				this.recordType = A;
				this.fields = A.prototype.fields;
				delete this.snapshot;
				this.sortInfo = B.sortInfo;
				this.modified = [];
				this.fireEvent("metachange", this, this.reader.meta)
			},
			findInsertIndex : function(A) {
				this.suspendEvents();
				var C = this.data.clone();
				this.data.add(A);
				this.applySort();
				var B = this.data.indexOf(A);
				this.data = C;
				this.resumeEvents();
				return B
			}
		});