| /* |
| 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(_a,_b){ |
| return this.isItem(_a)&&typeof _a.i[_b]!="undefined"; |
| },containsValue:function(_c,_d,_e){ |
| var _f=this.getValues(_c,_d); |
| var len=_f.length; |
| for(var i=0;i<len;i++){ |
| if(_f[i]==_e){ |
| return true; |
| } |
| } |
| return false; |
| },isItem:function(_10){ |
| if(_10){ |
| return typeof _10.r!="undefined"&&_10.r==this; |
| } |
| return false; |
| },isItemLoaded:function(_11){ |
| return this.isItem(_11); |
| },loadItem:function(_12){ |
| if(this.isItemLoaded(_12.item)){ |
| return; |
| } |
| },fetch:function(_13){ |
| _13=_13||{}; |
| if(!_13.store){ |
| _13.store=this; |
| } |
| var _14=this; |
| var _15=function(_16,_17){ |
| if(_17.onError){ |
| var _18=_17.scope||dojo.global; |
| _17.onError.call(_18,_16,_17); |
| } |
| }; |
| var _19=function(_1a,_1b,_1c){ |
| var _1d=_1b.abort||null; |
| var _1e=false; |
| var _1f=_1b.start?_1b.start:0; |
| if(_14.doClientPaging==false){ |
| _1f=0; |
| } |
| var _20=_1b.count?(_1f+_1b.count):_1a.length; |
| _1b.abort=function(){ |
| _1e=true; |
| if(_1d){ |
| _1d.call(_1b); |
| } |
| }; |
| var _21=_1b.scope||dojo.global; |
| if(!_1b.store){ |
| _1b.store=_14; |
| } |
| if(_1b.onBegin){ |
| _1b.onBegin.call(_21,_1c,_1b); |
| } |
| if(_1b.sort&&_14.doClientSorting){ |
| _1a.sort(dojo.data.util.sorter.createSortFunction(_1b.sort,_14)); |
| } |
| if(_1b.onItem){ |
| for(var i=_1f;(i<_1a.length)&&(i<_20);++i){ |
| var _22=_1a[i]; |
| if(!_1e){ |
| _1b.onItem.call(_21,_22,_1b); |
| } |
| } |
| } |
| if(_1b.onComplete&&!_1e){ |
| var _23=null; |
| if(!_1b.onItem){ |
| _23=_1a.slice(_1f,_20); |
| } |
| _1b.onComplete.call(_21,_23,_1b); |
| } |
| }; |
| this._fetchItems(_13,_19,_15); |
| return _13; |
| },getFeatures:function(){ |
| return this._features; |
| },close:function(_24){ |
| },getLabel:function(_25){ |
| if(this._labelAttr&&this.isItem(_25)){ |
| return this.getValue(_25,this._labelAttr); |
| } |
| return undefined; |
| },getLabelAttributes:function(_26){ |
| if(this._labelAttr){ |
| return [this._labelAttr]; |
| } |
| return null; |
| },_xhrFetchHandler:function(_27,_28,_29,_2a){ |
| _27=this._filterResponse(_27); |
| if(_27.label){ |
| this._labelAttr=_27.label; |
| } |
| var _2b=_27.numRows||-1; |
| this._items=[]; |
| dojo.forEach(_27.items,function(e){ |
| this._items.push({i:e,r:this}); |
| },this); |
| var _2c=_27.identifier; |
| this._itemsByIdentity={}; |
| if(_2c){ |
| this._identifier=_2c; |
| var i; |
| for(i=0;i<this._items.length;++i){ |
| var _2d=this._items[i].i; |
| var _2e=_2d[_2c]; |
| if(!this._itemsByIdentity[_2e]){ |
| this._itemsByIdentity[_2e]=_2d; |
| }else{ |
| throw new Error(this._className+": The json data as specified by: ["+this.url+"] is malformed. Items within the list have identifier: ["+_2c+"]. Value collided: ["+_2e+"]"); |
| } |
| } |
| }else{ |
| this._identifier=Number; |
| for(i=0;i<this._items.length;++i){ |
| this._items[i].n=i; |
| } |
| } |
| _2b=this._numRows=(_2b===-1)?this._items.length:_2b; |
| _29(this._items,_28,_2b); |
| this._numRows=_2b; |
| },_fetchItems:function(_2f,_30,_31){ |
| var _32=_2f.serverQuery||_2f.query||{}; |
| if(!this.doClientPaging){ |
| _32.start=_2f.start||0; |
| if(_2f.count){ |
| _32.count=_2f.count; |
| } |
| } |
| if(!this.doClientSorting){ |
| if(_2f.sort){ |
| var _33=_2f.sort[0]; |
| if(_33&&_33.attribute){ |
| var _34=_33.attribute; |
| if(_33.descending){ |
| _34="-"+_34; |
| } |
| _32.sort=_34; |
| } |
| } |
| } |
| if(this.doClientPaging&&this._lastServerQuery!==null&&dojo.toJson(_32)==dojo.toJson(this._lastServerQuery)){ |
| this._numRows=(this._numRows===-1)?this._items.length:this._numRows; |
| _30(this._items,_2f,this._numRows); |
| }else{ |
| var _35=this.requestMethod.toLowerCase()=="post"?dojo.xhrPost:dojo.xhrGet; |
| var _36=_35({url:this.url,handleAs:"json-comment-optional",content:_32}); |
| _36.addCallback(dojo.hitch(this,function(_37){ |
| this._xhrFetchHandler(_37,_2f,_30,_31); |
| })); |
| _36.addErrback(function(_38){ |
| _31(_38,_2f); |
| }); |
| this.lastRequestHash=new Date().getTime()+"-"+String(Math.random()).substring(2); |
| this._lastServerQuery=dojo.mixin({},_32); |
| } |
| },_filterResponse:function(_39){ |
| return _39; |
| },_assertIsItem:function(_3a){ |
| if(!this.isItem(_3a)){ |
| throw new Error(this._className+": Invalid item argument."); |
| } |
| },_assertIsAttribute:function(_3b){ |
| if(typeof _3b!=="string"){ |
| throw new Error(this._className+": Invalid attribute argument ('"+_3b+"')."); |
| } |
| },fetchItemByIdentity:function(_3c){ |
| if(this._itemsByIdentity){ |
| var _3d=this._itemsByIdentity[_3c.identity]; |
| if(!(_3d===undefined)){ |
| if(_3c.onItem){ |
| var _3e=_3c.scope?_3c.scope:dojo.global; |
| _3c.onItem.call(_3e,{i:_3d,r:this}); |
| } |
| return; |
| } |
| } |
| var _3f=function(_40,_41){ |
| var _42=_3c.scope?_3c.scope:dojo.global; |
| if(_3c.onError){ |
| _3c.onError.call(_42,_40); |
| } |
| }; |
| var _43=function(_44,_45){ |
| var _46=_3c.scope?_3c.scope:dojo.global; |
| try{ |
| var _47=null; |
| if(_44&&_44.length==1){ |
| _47=_44[0]; |
| } |
| if(_3c.onItem){ |
| _3c.onItem.call(_46,_47); |
| } |
| } |
| catch(error){ |
| if(_3c.onError){ |
| _3c.onError.call(_46,error); |
| } |
| } |
| }; |
| var _48={serverQuery:{id:_3c.identity}}; |
| this._fetchItems(_48,_43,_3f); |
| },getIdentity:function(_49){ |
| var _4a=null; |
| if(this._identifier===Number){ |
| _4a=_49.n; |
| }else{ |
| _4a=_49.i[this._identifier]; |
| } |
| return _4a; |
| },getIdentityAttributes:function(_4b){ |
| return [this._identifier]; |
| }}); |
| } |
