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
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*/
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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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} |
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} |
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} |
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} |
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} |
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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); |
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},_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."); |
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} |
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var _2d=this._getValueOrValues(_28,_29); |
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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]; |
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}else{
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if(key===this._reverseRefMap){ |
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_2f[key]=dojo.clone(_28[key]); |
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}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]; |
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} |
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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];
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} |
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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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} |
266 |
} |
267 |
} |
268 |
} |
269 |
_28[_29]=_33; |
270 |
_30=true;
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} |
272 |
if(_2b){
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this.onSet(_28,_29,_2d,_2a);
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} |
275 |
return _30;
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},_addReferenceToMap:function(_38,_39,_3a){ |
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var _3b=this.getIdentity(_39); |
278 |
var _3c=_38[this._reverseRefMap]; |
279 |
if(!_3c){
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_3c=_38[this._reverseRefMap]={};
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} |
282 |
var _3d=_3c[_3b];
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283 |
if(!_3d){
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_3d=_3c[_3b]={}; |
285 |
} |
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_3d[_3a]=true;
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287 |
},_removeReferenceFromMap:function(_3e,_3f,_40){ |
288 |
var _41=this.getIdentity(_3f); |
289 |
var _42=_3e[this._reverseRefMap]; |
290 |
var _43;
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291 |
if(_42){
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292 |
for(_43 in _42){ |
293 |
if(_43==_41){
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delete _42[_43][_40];
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295 |
if(this._isEmpty(_42[_43])){ |
296 |
delete _42[_43];
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297 |
} |
298 |
} |
299 |
} |
300 |
if(this._isEmpty(_42)){ |
301 |
delete _3e[this._reverseRefMap]; |
302 |
} |
303 |
} |
304 |
},_dumpReferenceMap:function(){ |
305 |
var i;
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306 |
for(i=0;i<this._arrayOfAllItems.length;i++){ |
307 |
var _44=this._arrayOfAllItems[i]; |
308 |
if(_44&&_44[this._reverseRefMap]){ |
309 |
} |
310 |
} |
311 |
},_getValueOrValues:function(_45,_46){ |
312 |
var _47=undefined; |
313 |
if(this.hasAttribute(_45,_46)){ |
314 |
var _48=this.getValues(_45,_46); |
315 |
if(_48.length==1){ |
316 |
_47=_48[0];
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317 |
}else{
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_47=_48; |
319 |
} |
320 |
} |
321 |
return _47;
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322 |
},_flatten:function(_49){ |
323 |
if(this.isItem(_49)){ |
324 |
var _4a=_49;
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var _4b=this.getIdentity(_4a); |
326 |
var _4c={_reference:_4b}; |
327 |
return _4c;
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}else{
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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){
|
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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){
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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 |
} |