Andrej Cimperšek - diploma

/*

        Copyright (c) 2004-2010, 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&&_2f.sort){

var _33=[];

dojo.forEach(_2f.sort,function(_34){

if(_34&&_34.attribute){

_33.push((_34.descending?"-":"")+_34.attribute);

}

});

_32.sort=_33.join(",");

}

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];

}});

}