| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojox.data.QueryReadStore"]){ |
| dojo._hasResource["dojox.data.QueryReadStore"]=true; |
| dojo.provide("dojox.data.QueryReadStore"); |
| dojo.require("dojo.string"); |
| dojo.require("dojo.data.util.sorter"); |
| dojo.declare("dojox.data.QueryReadStore",null,{url:"",requestMethod:"get",_className:"dojox.data.QueryReadStore",_items:[],_lastServerQuery:null,_numRows:-1,lastRequestHash:null,doClientPaging:false,doClientSorting:false,_itemsByIdentity:null,_identifier:null,_features:{"dojo.data.api.Read":true,"dojo.data.api.Identity":true},_labelAttr:"label",constructor:function(_1){ |
| dojo.mixin(this,_1); |
| },getValue:function(_2,_3,_4){ |
| this._assertIsItem(_2); |
| if(!dojo.isString(_3)){ |
| throw new Error(this._className+".getValue(): Invalid attribute, string expected!"); |
| } |
| if(!this.hasAttribute(_2,_3)){ |
| if(_4){ |
| return _4; |
| } |
| |
| } |
| return _2.i[_3]; |
| },getValues:function(_5,_6){ |
| this._assertIsItem(_5); |
| var _7=[]; |
| if(this.hasAttribute(_5,_6)){ |
| _7.push(_5.i[_6]); |
| } |
| return _7; |
| },getAttributes:function(_8){ |
| this._assertIsItem(_8); |
| var _9=[]; |
| for(var i in _8.i){ |
| _9.push(i); |
| } |
| return _9; |
| },hasAttribute:function(_b,_c){ |
| return this.isItem(_b)&&typeof _b.i[_c]!="undefined"; |
| },containsValue:function(_d,_e,_f){ |
| var _10=this.getValues(_d,_e); |
| var len=_10.length; |
| for(var i=0;i<len;i++){ |
| if(_10[i]==_f){ |
| return true; |
| } |
| } |
| return false; |
| },isItem:function(_13){ |
| if(_13){ |
| return typeof _13.r!="undefined"&&_13.r==this; |
| } |
| return false; |
| },isItemLoaded:function(_14){ |
| return this.isItem(_14); |
| },loadItem:function(_15){ |
| if(this.isItemLoaded(_15.item)){ |
| return; |
| } |
| },fetch:function(_16){ |
| _16=_16||{}; |
| if(!_16.store){ |
| _16.store=this; |
| } |
| var _17=this; |
| var _18=function(_19,_1a){ |
| if(_1a.onError){ |
| var _1b=_1a.scope||dojo.global; |
| _1a.onError.call(_1b,_19,_1a); |
| } |
| }; |
| var _1c=function(_1d,_1e,_1f){ |
| var _20=_1e.abort||null; |
| var _21=false; |
| var _22=_1e.start?_1e.start:0; |
| if(_17.doClientPaging==false){ |
| _22=0; |
| } |
| var _23=_1e.count?(_22+_1e.count):_1d.length; |
| _1e.abort=function(){ |
| _21=true; |
| if(_20){ |
| _20.call(_1e); |
| } |
| }; |
| var _24=_1e.scope||dojo.global; |
| if(!_1e.store){ |
| _1e.store=_17; |
| } |
| if(_1e.onBegin){ |
| _1e.onBegin.call(_24,_1f,_1e); |
| } |
| if(_1e.sort&&_17.doClientSorting){ |
| _1d.sort(dojo.data.util.sorter.createSortFunction(_1e.sort,_17)); |
| } |
| if(_1e.onItem){ |
| for(var i=_22;(i<_1d.length)&&(i<_23);++i){ |
| var _26=_1d[i]; |
| if(!_21){ |
| _1e.onItem.call(_24,_26,_1e); |
| } |
| } |
| } |
| if(_1e.onComplete&&!_21){ |
| var _27=null; |
| if(!_1e.onItem){ |
| _27=_1d.slice(_22,_23); |
| } |
| _1e.onComplete.call(_24,_27,_1e); |
| } |
| }; |
| this._fetchItems(_16,_1c,_18); |
| return _16; |
| },getFeatures:function(){ |
| return this._features; |
| },close:function(_28){ |
| },getLabel:function(_29){ |
| if(this._labelAttr&&this.isItem(_29)){ |
| return this.getValue(_29,this._labelAttr); |
| } |
| return undefined; |
| },getLabelAttributes:function(_2a){ |
| if(this._labelAttr){ |
| return [this._labelAttr]; |
| } |
| return null; |
| },_xhrFetchHandler:function(_2b,_2c,_2d,_2e){ |
| _2b=this._filterResponse(_2b); |
| if(_2b.label){ |
| this._labelAttr=_2b.label; |
| } |
| var _2f=_2b.numRows||-1; |
| this._items=[]; |
| dojo.forEach(_2b.items,function(e){ |
| this._items.push({i:e,r:this}); |
| },this); |
| var _31=_2b.identifier; |
| this._itemsByIdentity={}; |
| if(_31){ |
| this._identifier=_31; |
| var i; |
| for(i=0;i<this._items.length;++i){ |
| var _33=this._items[i].i; |
| var _34=_33[_31]; |
| if(!this._itemsByIdentity[_34]){ |
| this._itemsByIdentity[_34]=_33; |
| }else{ |
| throw new Error(this._className+": The json data as specified by: ["+this.url+"] is malformed. Items within the list have identifier: ["+_31+"]. Value collided: ["+_34+"]"); |
| } |
| } |
| }else{ |
| this._identifier=Number; |
| for(i=0;i<this._items.length;++i){ |
| this._items[i].n=i; |
| } |
| } |
| _2f=this._numRows=(_2f===-1)?this._items.length:_2f; |
| _2d(this._items,_2c,_2f); |
| this._numRows=_2f; |
| },_fetchItems:function(_35,_36,_37){ |
| var _38=_35.serverQuery||_35.query||{}; |
| if(!this.doClientPaging){ |
| _38.start=_35.start||0; |
| if(_35.count){ |
| _38.count=_35.count; |
| } |
| } |
| if(!this.doClientSorting){ |
| if(_35.sort){ |
| var _39=_35.sort[0]; |
| if(_39&&_39.attribute){ |
| var _3a=_39.attribute; |
| if(_39.descending){ |
| _3a="-"+_3a; |
| } |
| _38.sort=_3a; |
| } |
| } |
| } |
| if(this.doClientPaging&&this._lastServerQuery!==null&&dojo.toJson(_38)==dojo.toJson(this._lastServerQuery)){ |
| this._numRows=(this._numRows===-1)?this._items.length:this._numRows; |
| _36(this._items,_35,this._numRows); |
| }else{ |
| var _3b=this.requestMethod.toLowerCase()=="post"?dojo.xhrPost:dojo.xhrGet; |
| var _3c=_3b({url:this.url,handleAs:"json-comment-optional",content:_38}); |
| _3c.addCallback(dojo.hitch(this,function(_3d){ |
| this._xhrFetchHandler(_3d,_35,_36,_37); |
| })); |
| _3c.addErrback(function(_3e){ |
| _37(_3e,_35); |
| }); |
| this.lastRequestHash=new Date().getTime()+"-"+String(Math.random()).substring(2); |
| this._lastServerQuery=dojo.mixin({},_38); |
| } |
| },_filterResponse:function(_3f){ |
| return _3f; |
| },_assertIsItem:function(_40){ |
| if(!this.isItem(_40)){ |
| throw new Error(this._className+": Invalid item argument."); |
| } |
| },_assertIsAttribute:function(_41){ |
| if(typeof _41!=="string"){ |
| throw new Error(this._className+": Invalid attribute argument ('"+_41+"')."); |
| } |
| },fetchItemByIdentity:function(_42){ |
| if(this._itemsByIdentity){ |
| var _43=this._itemsByIdentity[_42.identity]; |
| if(!(_43===undefined)){ |
| if(_42.onItem){ |
| var _44=_42.scope?_42.scope:dojo.global; |
| _42.onItem.call(_44,{i:_43,r:this}); |
| } |
| return; |
| } |
| } |
| var _45=function(_46,_47){ |
| var _48=_42.scope?_42.scope:dojo.global; |
| if(_42.onError){ |
| _42.onError.call(_48,_46); |
| } |
| }; |
| var _49=function(_4a,_4b){ |
| var _4c=_42.scope?_42.scope:dojo.global; |
| try{ |
| var _4d=null; |
| if(_4a&&_4a.length==1){ |
| _4d=_4a[0]; |
| } |
| if(_42.onItem){ |
| _42.onItem.call(_4c,_4d); |
| } |
| } |
| catch(error){ |
| if(_42.onError){ |
| _42.onError.call(_4c,error); |
| } |
| } |
| }; |
| var _4e={serverQuery:{id:_42.identity}}; |
| this._fetchItems(_4e,_49,_45); |
| },getIdentity:function(_4f){ |
| var _50=null; |
| if(this._identifier===Number){ |
| _50=_4f.n; |
| }else{ |
| _50=_4f.i[this._identifier]; |
| } |
| return _50; |
| },getIdentityAttributes:function(_51){ |
| return [this._identifier]; |
| }}); |
| } |
