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root / trunk / web / dojo / dojox / data / AndOrWriteStore.js @ 12

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
5
*/
6

    
7

    
8
if(!dojo._hasResource["dojox.data.AndOrWriteStore"]){
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dojo._hasResource["dojox.data.AndOrWriteStore"]=true;
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dojo.provide("dojox.data.AndOrWriteStore");
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dojo.require("dojox.data.AndOrReadStore");
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dojo.declare("dojox.data.AndOrWriteStore",dojox.data.AndOrReadStore,{constructor:function(_1){
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this._features["dojo.data.api.Write"]=true;
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this._features["dojo.data.api.Notification"]=true;
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this._pending={_newItems:{},_modifiedItems:{},_deletedItems:{}};
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if(!this._datatypeMap["Date"].serialize){
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this._datatypeMap["Date"].serialize=function(_2){
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return dojo.date.stamp.toISOString(_2,{zulu:true});
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};
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}
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if(_1&&(_1.referenceIntegrity===false)){
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this.referenceIntegrity=false;
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}
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this._saveInProgress=false;
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},referenceIntegrity:true,_assert:function(_3){
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if(!_3){
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throw new Error("assertion failed in ItemFileWriteStore");
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}
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},_getIdentifierAttribute:function(){
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var _4=this.getFeatures()["dojo.data.api.Identity"];
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return _4;
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},newItem:function(_5,_6){
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this._assert(!this._saveInProgress);
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if(!this._loadFinished){
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this._forceLoad();
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}
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if(typeof _5!="object"&&typeof _5!="undefined"){
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throw new Error("newItem() was passed something other than an object");
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}
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var _7=null;
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var _8=this._getIdentifierAttribute();
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if(_8===Number){
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_7=this._arrayOfAllItems.length;
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}else{
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_7=_5[_8];
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if(typeof _7==="undefined"){
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throw new Error("newItem() was not passed an identity for the new item");
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}
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if(dojo.isArray(_7)){
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throw new Error("newItem() was not passed an single-valued identity");
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}
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}
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if(this._itemsByIdentity){
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this._assert(typeof this._itemsByIdentity[_7]==="undefined");
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}
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this._assert(typeof this._pending._newItems[_7]==="undefined");
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this._assert(typeof this._pending._deletedItems[_7]==="undefined");
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var _9={};
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_9[this._storeRefPropName]=this;
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_9[this._itemNumPropName]=this._arrayOfAllItems.length;
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if(this._itemsByIdentity){
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this._itemsByIdentity[_7]=_9;
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_9[_8]=[_7];
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}
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this._arrayOfAllItems.push(_9);
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var _a=null;
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if(_6&&_6.parent&&_6.attribute){
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_a={item:_6.parent,attribute:_6.attribute,oldValue:undefined};
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var _b=this.getValues(_6.parent,_6.attribute);
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if(_b&&_b.length>0){
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var _c=_b.slice(0,_b.length);
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if(_b.length===1){
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_a.oldValue=_b[0];
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}else{
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_a.oldValue=_b.slice(0,_b.length);
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}
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_c.push(_9);
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this._setValueOrValues(_6.parent,_6.attribute,_c,false);
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_a.newValue=this.getValues(_6.parent,_6.attribute);
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}else{
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this._setValueOrValues(_6.parent,_6.attribute,_9,false);
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_a.newValue=_9;
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}
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}else{
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_9[this._rootItemPropName]=true;
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this._arrayOfTopLevelItems.push(_9);
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}
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this._pending._newItems[_7]=_9;
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for(var _d in _5){
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if(_d===this._storeRefPropName||_d===this._itemNumPropName){
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throw new Error("encountered bug in ItemFileWriteStore.newItem");
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}
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var _e=_5[_d];
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if(!dojo.isArray(_e)){
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_e=[_e];
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}
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_9[_d]=_e;
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if(this.referenceIntegrity){
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for(var i=0;i<_e.length;i++){
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var _f=_e[i];
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if(this.isItem(_f)){
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this._addReferenceToMap(_f,_9,_d);
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}
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}
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}
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}
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this.onNew(_9,_a);
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return _9;
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},_removeArrayElement:function(_10,_11){
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var _12=dojo.indexOf(_10,_11);
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if(_12!=-1){
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_10.splice(_12,1);
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return true;
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}
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return false;
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},deleteItem:function(_13){
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this._assert(!this._saveInProgress);
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this._assertIsItem(_13);
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var _14=_13[this._itemNumPropName];
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var _15=this.getIdentity(_13);
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if(this.referenceIntegrity){
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var _16=this.getAttributes(_13);
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if(_13[this._reverseRefMap]){
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_13["backup_"+this._reverseRefMap]=dojo.clone(_13[this._reverseRefMap]);
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}
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dojo.forEach(_16,function(_17){
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dojo.forEach(this.getValues(_13,_17),function(_18){
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if(this.isItem(_18)){
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if(!_13["backupRefs_"+this._reverseRefMap]){
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_13["backupRefs_"+this._reverseRefMap]=[];
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}
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_13["backupRefs_"+this._reverseRefMap].push({id:this.getIdentity(_18),attr:_17});
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this._removeReferenceFromMap(_18,_13,_17);
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}
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},this);
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},this);
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var _19=_13[this._reverseRefMap];
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if(_19){
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for(var _1a in _19){
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var _1b=null;
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if(this._itemsByIdentity){
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_1b=this._itemsByIdentity[_1a];
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}else{
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_1b=this._arrayOfAllItems[_1a];
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}
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if(_1b){
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for(var _1c in _19[_1a]){
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var _1d=this.getValues(_1b,_1c)||[];
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var _1e=dojo.filter(_1d,function(_1f){
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return !(this.isItem(_1f)&&this.getIdentity(_1f)==_15);
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},this);
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this._removeReferenceFromMap(_13,_1b,_1c);
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if(_1e.length<_1d.length){
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this._setValueOrValues(_1b,_1c,_1e);
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}
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}
157
}
158
}
159
}
160
}
161
this._arrayOfAllItems[_14]=null;
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_13[this._storeRefPropName]=null;
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if(this._itemsByIdentity){
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delete this._itemsByIdentity[_15];
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}
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this._pending._deletedItems[_15]=_13;
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if(_13[this._rootItemPropName]){
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this._removeArrayElement(this._arrayOfTopLevelItems,_13);
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}
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this.onDelete(_13);
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return true;
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},setValue:function(_20,_21,_22){
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return this._setValueOrValues(_20,_21,_22,true);
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},setValues:function(_23,_24,_25){
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return this._setValueOrValues(_23,_24,_25,true);
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},unsetAttribute:function(_26,_27){
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return this._setValueOrValues(_26,_27,[],true);
178
},_setValueOrValues:function(_28,_29,_2a,_2b){
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this._assert(!this._saveInProgress);
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this._assertIsItem(_28);
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this._assert(dojo.isString(_29));
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this._assert(typeof _2a!=="undefined");
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var _2c=this._getIdentifierAttribute();
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if(_29==_2c){
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throw new Error("ItemFileWriteStore does not have support for changing the value of an item's identifier.");
186
}
187
var _2d=this._getValueOrValues(_28,_29);
188
var _2e=this.getIdentity(_28);
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if(!this._pending._modifiedItems[_2e]){
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var _2f={};
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for(var key in _28){
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if((key===this._storeRefPropName)||(key===this._itemNumPropName)||(key===this._rootItemPropName)){
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_2f[key]=_28[key];
194
}else{
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if(key===this._reverseRefMap){
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_2f[key]=dojo.clone(_28[key]);
197
}else{
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_2f[key]=_28[key].slice(0,_28[key].length);
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}
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}
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}
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this._pending._modifiedItems[_2e]=_2f;
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}
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var _30=false;
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if(dojo.isArray(_2a)&&_2a.length===0){
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_30=delete _28[_29];
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_2a=undefined;
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if(this.referenceIntegrity&&_2d){
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var _31=_2d;
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if(!dojo.isArray(_31)){
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_31=[_31];
212
}
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for(var i=0;i<_31.length;i++){
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var _32=_31[i];
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if(this.isItem(_32)){
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this._removeReferenceFromMap(_32,_28,_29);
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}
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}
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}
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}else{
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var _33;
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if(dojo.isArray(_2a)){
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var _34=_2a;
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_33=_2a.slice(0,_2a.length);
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}else{
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_33=[_2a];
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}
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if(this.referenceIntegrity){
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if(_2d){
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var _31=_2d;
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if(!dojo.isArray(_31)){
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_31=[_31];
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}
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var map={};
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dojo.forEach(_31,function(_35){
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if(this.isItem(_35)){
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var id=this.getIdentity(_35);
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map[id.toString()]=true;
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}
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},this);
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dojo.forEach(_33,function(_36){
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if(this.isItem(_36)){
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var id=this.getIdentity(_36);
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if(map[id.toString()]){
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delete map[id.toString()];
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}else{
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this._addReferenceToMap(_36,_28,_29);
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}
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}
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},this);
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for(var rId in map){
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var _37;
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if(this._itemsByIdentity){
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_37=this._itemsByIdentity[rId];
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}else{
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_37=this._arrayOfAllItems[rId];
257
}
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this._removeReferenceFromMap(_37,_28,_29);
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}
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}else{
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for(var i=0;i<_33.length;i++){
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var _32=_33[i];
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if(this.isItem(_32)){
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this._addReferenceToMap(_32,_28,_29);
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}
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}
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}
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}
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_28[_29]=_33;
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_30=true;
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}
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if(_2b){
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this.onSet(_28,_29,_2d,_2a);
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}
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return _30;
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},_addReferenceToMap:function(_38,_39,_3a){
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var _3b=this.getIdentity(_39);
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var _3c=_38[this._reverseRefMap];
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if(!_3c){
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_3c=_38[this._reverseRefMap]={};
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}
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var _3d=_3c[_3b];
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if(!_3d){
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_3d=_3c[_3b]={};
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}
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_3d[_3a]=true;
287
},_removeReferenceFromMap:function(_3e,_3f,_40){
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var _41=this.getIdentity(_3f);
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var _42=_3e[this._reverseRefMap];
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var _43;
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if(_42){
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for(_43 in _42){
293
if(_43==_41){
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delete _42[_43][_40];
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if(this._isEmpty(_42[_43])){
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delete _42[_43];
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}
298
}
299
}
300
if(this._isEmpty(_42)){
301
delete _3e[this._reverseRefMap];
302
}
303
}
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},_dumpReferenceMap:function(){
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var i;
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for(i=0;i<this._arrayOfAllItems.length;i++){
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var _44=this._arrayOfAllItems[i];
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if(_44&&_44[this._reverseRefMap]){
309
}
310
}
311
},_getValueOrValues:function(_45,_46){
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var _47=undefined;
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if(this.hasAttribute(_45,_46)){
314
var _48=this.getValues(_45,_46);
315
if(_48.length==1){
316
_47=_48[0];
317
}else{
318
_47=_48;
319
}
320
}
321
return _47;
322
},_flatten:function(_49){
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if(this.isItem(_49)){
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var _4a=_49;
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var _4b=this.getIdentity(_4a);
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var _4c={_reference:_4b};
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return _4c;
328
}else{
329
if(typeof _49==="object"){
330
for(var _4d in this._datatypeMap){
331
var _4e=this._datatypeMap[_4d];
332
if(dojo.isObject(_4e)&&!dojo.isFunction(_4e)){
333
if(_49 instanceof _4e.type){
334
if(!_4e.serialize){
335
throw new Error("ItemFileWriteStore:  No serializer defined for type mapping: ["+_4d+"]");
336
}
337
return {_type:_4d,_value:_4e.serialize(_49)};
338
}
339
}else{
340
if(_49 instanceof _4e){
341
return {_type:_4d,_value:_49.toString()};
342
}
343
}
344
}
345
}
346
return _49;
347
}
348
},_getNewFileContentString:function(){
349
var _4f={};
350
var _50=this._getIdentifierAttribute();
351
if(_50!==Number){
352
_4f.identifier=_50;
353
}
354
if(this._labelAttr){
355
_4f.label=this._labelAttr;
356
}
357
_4f.items=[];
358
for(var i=0;i<this._arrayOfAllItems.length;++i){
359
var _51=this._arrayOfAllItems[i];
360
if(_51!==null){
361
var _52={};
362
for(var key in _51){
363
if(key!==this._storeRefPropName&&key!==this._itemNumPropName&&key!==this._reverseRefMap&&key!==this._rootItemPropName){
364
var _53=key;
365
var _54=this.getValues(_51,_53);
366
if(_54.length==1){
367
_52[_53]=this._flatten(_54[0]);
368
}else{
369
var _55=[];
370
for(var j=0;j<_54.length;++j){
371
_55.push(this._flatten(_54[j]));
372
_52[_53]=_55;
373
}
374
}
375
}
376
}
377
_4f.items.push(_52);
378
}
379
}
380
var _56=true;
381
return dojo.toJson(_4f,_56);
382
},_isEmpty:function(_57){
383
var _58=true;
384
if(dojo.isObject(_57)){
385
var i;
386
for(i in _57){
387
_58=false;
388
break;
389
}
390
}else{
391
if(dojo.isArray(_57)){
392
if(_57.length>0){
393
_58=false;
394
}
395
}
396
}
397
return _58;
398
},save:function(_59){
399
this._assert(!this._saveInProgress);
400
this._saveInProgress=true;
401
var _5a=this;
402
var _5b=function(){
403
_5a._pending={_newItems:{},_modifiedItems:{},_deletedItems:{}};
404
_5a._saveInProgress=false;
405
if(_59&&_59.onComplete){
406
var _5c=_59.scope||dojo.global;
407
_59.onComplete.call(_5c);
408
}
409
};
410
var _5d=function(){
411
_5a._saveInProgress=false;
412
if(_59&&_59.onError){
413
var _5e=_59.scope||dojo.global;
414
_59.onError.call(_5e);
415
}
416
};
417
if(this._saveEverything){
418
var _5f=this._getNewFileContentString();
419
this._saveEverything(_5b,_5d,_5f);
420
}
421
if(this._saveCustom){
422
this._saveCustom(_5b,_5d);
423
}
424
if(!this._saveEverything&&!this._saveCustom){
425
_5b();
426
}
427
},revert:function(){
428
this._assert(!this._saveInProgress);
429
var _60;
430
for(_60 in this._pending._modifiedItems){
431
var _61=this._pending._modifiedItems[_60];
432
var _62=null;
433
if(this._itemsByIdentity){
434
_62=this._itemsByIdentity[_60];
435
}else{
436
_62=this._arrayOfAllItems[_60];
437
}
438
_61[this._storeRefPropName]=this;
439
for(key in _62){
440
delete _62[key];
441
}
442
dojo.mixin(_62,_61);
443
}
444
var _63;
445
for(_60 in this._pending._deletedItems){
446
_63=this._pending._deletedItems[_60];
447
_63[this._storeRefPropName]=this;
448
var _64=_63[this._itemNumPropName];
449
if(_63["backup_"+this._reverseRefMap]){
450
_63[this._reverseRefMap]=_63["backup_"+this._reverseRefMap];
451
delete _63["backup_"+this._reverseRefMap];
452
}
453
this._arrayOfAllItems[_64]=_63;
454
if(this._itemsByIdentity){
455
this._itemsByIdentity[_60]=_63;
456
}
457
if(_63[this._rootItemPropName]){
458
this._arrayOfTopLevelItems.push(_63);
459
}
460
}
461
for(_60 in this._pending._deletedItems){
462
_63=this._pending._deletedItems[_60];
463
if(_63["backupRefs_"+this._reverseRefMap]){
464
dojo.forEach(_63["backupRefs_"+this._reverseRefMap],function(_65){
465
var _66;
466
if(this._itemsByIdentity){
467
_66=this._itemsByIdentity[_65.id];
468
}else{
469
_66=this._arrayOfAllItems[_65.id];
470
}
471
this._addReferenceToMap(_66,_63,_65.attr);
472
},this);
473
delete _63["backupRefs_"+this._reverseRefMap];
474
}
475
}
476
for(_60 in this._pending._newItems){
477
var _67=this._pending._newItems[_60];
478
_67[this._storeRefPropName]=null;
479
this._arrayOfAllItems[_67[this._itemNumPropName]]=null;
480
if(_67[this._rootItemPropName]){
481
this._removeArrayElement(this._arrayOfTopLevelItems,_67);
482
}
483
if(this._itemsByIdentity){
484
delete this._itemsByIdentity[_60];
485
}
486
}
487
this._pending={_newItems:{},_modifiedItems:{},_deletedItems:{}};
488
return true;
489
},isDirty:function(_68){
490
if(_68){
491
var _69=this.getIdentity(_68);
492
return new Boolean(this._pending._newItems[_69]||this._pending._modifiedItems[_69]||this._pending._deletedItems[_69]).valueOf();
493
}else{
494
if(!this._isEmpty(this._pending._newItems)||!this._isEmpty(this._pending._modifiedItems)||!this._isEmpty(this._pending._deletedItems)){
495
return true;
496
}
497
return false;
498
}
499
},onSet:function(_6a,_6b,_6c,_6d){
500
},onNew:function(_6e,_6f){
501
},onDelete:function(_70){
502
},close:function(_71){
503
if(this.clearOnClose){
504
if(!this.isDirty()){
505
this.inherited(arguments);
506
}else{
507
throw new Error("dojox.data.AndOrWriteStore: There are unsaved changes present in the store.  Please save or revert the changes before invoking close.");
508
}
509
}
510
}});
511
}