root / trunk / web / dojo / dojox / data / AndOrWriteStore.js
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.data.AndOrWriteStore"]){ |
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| 9 | dojo._hasResource["dojox.data.AndOrWriteStore"]=true; |
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| 10 | dojo.provide("dojox.data.AndOrWriteStore");
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| 11 | dojo.require("dojox.data.AndOrReadStore");
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| 12 | dojo.declare("dojox.data.AndOrWriteStore",dojox.data.AndOrReadStore,{constructor:function(_1){ |
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| 13 | this._features["dojo.data.api.Write"]=true; |
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| 14 | this._features["dojo.data.api.Notification"]=true; |
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| 15 | this._pending={_newItems:{},_modifiedItems:{},_deletedItems:{}}; |
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| 16 | if(!this._datatypeMap["Date"].serialize){ |
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| 17 | this._datatypeMap["Date"].serialize=function(_2){ |
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| 18 | return dojo.date.stamp.toISOString(_2,{zulu:true}); |
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| 19 | }; |
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| 20 | } |
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| 21 | if(_1&&(_1.referenceIntegrity===false)){ |
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| 22 | this.referenceIntegrity=false; |
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| 23 | } |
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| 24 | this._saveInProgress=false; |
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| 25 | },referenceIntegrity:true,_assert:function(_3){ |
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| 26 | if(!_3){
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| 27 | throw new Error("assertion failed in ItemFileWriteStore"); |
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| 28 | } |
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| 29 | },_getIdentifierAttribute:function(){ |
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| 30 | var _4=this.getFeatures()["dojo.data.api.Identity"]; |
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| 31 | return _4;
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| 32 | },newItem:function(_5,_6){ |
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| 33 | this._assert(!this._saveInProgress); |
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| 34 | if(!this._loadFinished){ |
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| 35 | this._forceLoad();
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| 36 | } |
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| 37 | if(typeof _5!="object"&&typeof _5!="undefined"){ |
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| 38 | throw new Error("newItem() was passed something other than an object"); |
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| 39 | } |
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| 40 | var _7=null; |
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| 41 | var _8=this._getIdentifierAttribute(); |
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| 42 | if(_8===Number){
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| 43 | _7=this._arrayOfAllItems.length;
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| 44 | }else{
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| 45 | _7=_5[_8]; |
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| 46 | if(typeof _7==="undefined"){ |
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| 47 | throw new Error("newItem() was not passed an identity for the new item"); |
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| 48 | } |
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| 49 | if(dojo.isArray(_7)){
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| 50 | throw new Error("newItem() was not passed an single-valued identity"); |
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| 51 | } |
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| 52 | } |
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| 53 | if(this._itemsByIdentity){ |
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| 54 | this._assert(typeof this._itemsByIdentity[_7]==="undefined"); |
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| 55 | } |
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| 56 | this._assert(typeof this._pending._newItems[_7]==="undefined"); |
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| 57 | this._assert(typeof this._pending._deletedItems[_7]==="undefined"); |
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| 58 | var _9={};
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| 59 | _9[this._storeRefPropName]=this; |
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| 60 | _9[this._itemNumPropName]=this._arrayOfAllItems.length; |
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| 61 | if(this._itemsByIdentity){ |
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| 62 | this._itemsByIdentity[_7]=_9;
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| 63 | _9[_8]=[_7]; |
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| 64 | } |
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| 65 | this._arrayOfAllItems.push(_9);
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| 66 | var _a=null; |
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| 67 | if(_6&&_6.parent&&_6.attribute){
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| 68 | _a={item:_6.parent,attribute:_6.attribute,oldValue:undefined};
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| 69 | var _b=this.getValues(_6.parent,_6.attribute); |
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| 70 | if(_b&&_b.length>0){ |
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| 71 | var _c=_b.slice(0,_b.length); |
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| 72 | if(_b.length===1){ |
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| 73 | _a.oldValue=_b[0];
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| 74 | }else{
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| 75 | _a.oldValue=_b.slice(0,_b.length);
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| 76 | } |
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| 77 | _c.push(_9); |
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| 78 | this._setValueOrValues(_6.parent,_6.attribute,_c,false); |
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| 79 | _a.newValue=this.getValues(_6.parent,_6.attribute);
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| 80 | }else{
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| 81 | this._setValueOrValues(_6.parent,_6.attribute,_9,false); |
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| 82 | _a.newValue=_9; |
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| 83 | } |
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| 84 | }else{
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| 85 | _9[this._rootItemPropName]=true; |
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| 86 | this._arrayOfTopLevelItems.push(_9);
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| 87 | } |
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| 88 | this._pending._newItems[_7]=_9;
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| 89 | for(var _d in _5){ |
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| 90 | if(_d===this._storeRefPropName||_d===this._itemNumPropName){ |
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| 91 | throw new Error("encountered bug in ItemFileWriteStore.newItem"); |
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| 92 | } |
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| 93 | var _e=_5[_d];
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| 94 | if(!dojo.isArray(_e)){
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| 95 | _e=[_e]; |
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| 96 | } |
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| 97 | _9[_d]=_e; |
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| 98 | if(this.referenceIntegrity){ |
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| 99 | for(var i=0;i<_e.length;i++){ |
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| 100 | var _f=_e[i];
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| 101 | if(this.isItem(_f)){ |
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| 102 | this._addReferenceToMap(_f,_9,_d);
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| 103 | } |
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| 104 | } |
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| 105 | } |
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| 106 | } |
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| 107 | this.onNew(_9,_a);
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| 108 | return _9;
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| 109 | },_removeArrayElement:function(_10,_11){ |
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| 110 | var _12=dojo.indexOf(_10,_11);
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| 111 | if(_12!=-1){ |
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| 112 | _10.splice(_12,1);
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| 113 | return true; |
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| 114 | } |
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| 115 | return false; |
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| 116 | },deleteItem:function(_13){ |
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| 117 | this._assert(!this._saveInProgress); |
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| 118 | this._assertIsItem(_13);
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| 119 | var _14=_13[this._itemNumPropName]; |
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| 120 | var _15=this.getIdentity(_13); |
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| 121 | if(this.referenceIntegrity){ |
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| 122 | var _16=this.getAttributes(_13); |
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| 123 | if(_13[this._reverseRefMap]){ |
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| 124 | _13["backup_"+this._reverseRefMap]=dojo.clone(_13[this._reverseRefMap]); |
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| 125 | } |
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| 126 | dojo.forEach(_16,function(_17){
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| 127 | dojo.forEach(this.getValues(_13,_17),function(_18){ |
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| 128 | if(this.isItem(_18)){ |
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| 129 | if(!_13["backupRefs_"+this._reverseRefMap]){ |
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| 130 | _13["backupRefs_"+this._reverseRefMap]=[]; |
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| 131 | } |
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| 132 | _13["backupRefs_"+this._reverseRefMap].push({id:this.getIdentity(_18),attr:_17}); |
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| 133 | this._removeReferenceFromMap(_18,_13,_17);
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| 134 | } |
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| 135 | },this);
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| 136 | },this);
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| 137 | var _19=_13[this._reverseRefMap]; |
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| 138 | if(_19){
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| 139 | for(var _1a in _19){ |
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| 140 | var _1b=null; |
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| 141 | if(this._itemsByIdentity){ |
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| 142 | _1b=this._itemsByIdentity[_1a];
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| 143 | }else{
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| 144 | _1b=this._arrayOfAllItems[_1a];
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| 145 | } |
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| 146 | if(_1b){
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| 147 | for(var _1c in _19[_1a]){ |
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| 148 | var _1d=this.getValues(_1b,_1c)||[]; |
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| 149 | var _1e=dojo.filter(_1d,function(_1f){ |
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| 150 | return !(this.isItem(_1f)&&this.getIdentity(_1f)==_15); |
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| 151 | },this);
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| 152 | this._removeReferenceFromMap(_13,_1b,_1c);
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| 153 | if(_1e.length<_1d.length){
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| 154 | this._setValueOrValues(_1b,_1c,_1e);
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| 155 | } |
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| 156 | } |
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| 157 | } |
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| 158 | } |
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| 159 | } |
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| 160 | } |
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| 161 | this._arrayOfAllItems[_14]=null; |
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| 162 | _13[this._storeRefPropName]=null; |
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| 163 | if(this._itemsByIdentity){ |
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| 164 | delete this._itemsByIdentity[_15]; |
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| 165 | } |
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| 166 | this._pending._deletedItems[_15]=_13;
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| 167 | if(_13[this._rootItemPropName]){ |
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| 168 | this._removeArrayElement(this._arrayOfTopLevelItems,_13); |
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| 169 | } |
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| 170 | this.onDelete(_13);
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| 171 | return true; |
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| 172 | },setValue:function(_20,_21,_22){ |
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| 173 | return this._setValueOrValues(_20,_21,_22,true); |
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| 174 | },setValues:function(_23,_24,_25){ |
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| 175 | return this._setValueOrValues(_23,_24,_25,true); |
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| 176 | },unsetAttribute:function(_26,_27){ |
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| 177 | return this._setValueOrValues(_26,_27,[],true); |
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| 178 | },_setValueOrValues:function(_28,_29,_2a,_2b){ |
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| 179 | this._assert(!this._saveInProgress); |
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| 180 | this._assertIsItem(_28);
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| 181 | this._assert(dojo.isString(_29));
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| 182 | this._assert(typeof _2a!=="undefined"); |
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| 183 | var _2c=this._getIdentifierAttribute(); |
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| 184 | if(_29==_2c){
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| 185 | throw new Error("ItemFileWriteStore does not have support for changing the value of an item's identifier."); |
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| 186 | } |
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| 187 | var _2d=this._getValueOrValues(_28,_29); |
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| 188 | var _2e=this.getIdentity(_28); |
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| 189 | if(!this._pending._modifiedItems[_2e]){ |
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| 190 | var _2f={};
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| 191 | for(var key in _28){ |
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| 192 | if((key===this._storeRefPropName)||(key===this._itemNumPropName)||(key===this._rootItemPropName)){ |
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| 193 | _2f[key]=_28[key]; |
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| 194 | }else{
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| 195 | if(key===this._reverseRefMap){ |
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| 196 | _2f[key]=dojo.clone(_28[key]); |
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| 197 | }else{
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| 198 | _2f[key]=_28[key].slice(0,_28[key].length);
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | this._pending._modifiedItems[_2e]=_2f;
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| 203 | } |
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| 204 | var _30=false; |
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| 205 | if(dojo.isArray(_2a)&&_2a.length===0){ |
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| 206 | _30=delete _28[_29];
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| 207 | _2a=undefined;
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| 208 | if(this.referenceIntegrity&&_2d){ |
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| 209 | var _31=_2d;
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| 210 | if(!dojo.isArray(_31)){
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| 211 | _31=[_31]; |
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| 212 | } |
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| 213 | for(var i=0;i<_31.length;i++){ |
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| 214 | var _32=_31[i];
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| 215 | if(this.isItem(_32)){ |
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| 216 | this._removeReferenceFromMap(_32,_28,_29);
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| 217 | } |
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| 218 | } |
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| 219 | } |
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| 220 | }else{
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| 221 | var _33;
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| 222 | if(dojo.isArray(_2a)){
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| 223 | var _34=_2a;
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| 224 | _33=_2a.slice(0,_2a.length);
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| 225 | }else{
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| 226 | _33=[_2a]; |
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| 227 | } |
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| 228 | if(this.referenceIntegrity){ |
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| 229 | if(_2d){
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| 230 | var _31=_2d;
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| 231 | if(!dojo.isArray(_31)){
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| 232 | _31=[_31]; |
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| 233 | } |
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| 234 | var map={};
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| 235 | dojo.forEach(_31,function(_35){
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| 236 | if(this.isItem(_35)){ |
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| 237 | var id=this.getIdentity(_35); |
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| 238 | map[id.toString()]=true;
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| 239 | } |
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| 240 | },this);
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| 241 | dojo.forEach(_33,function(_36){
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| 242 | if(this.isItem(_36)){ |
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| 243 | var id=this.getIdentity(_36); |
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| 244 | if(map[id.toString()]){
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| 245 | delete map[id.toString()];
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| 246 | }else{
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| 247 | this._addReferenceToMap(_36,_28,_29);
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| 248 | } |
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| 249 | } |
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| 250 | },this);
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| 251 | for(var rId in map){ |
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| 252 | var _37;
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| 253 | if(this._itemsByIdentity){ |
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| 254 | _37=this._itemsByIdentity[rId];
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| 255 | }else{
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| 256 | _37=this._arrayOfAllItems[rId];
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| 257 | } |
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| 258 | this._removeReferenceFromMap(_37,_28,_29);
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| 259 | } |
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| 260 | }else{
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| 261 | for(var i=0;i<_33.length;i++){ |
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| 262 | var _32=_33[i];
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| 263 | if(this.isItem(_32)){ |
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| 264 | this._addReferenceToMap(_32,_28,_29);
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| 265 | } |
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| 266 | } |
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| 267 | } |
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| 268 | } |
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| 269 | _28[_29]=_33; |
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| 270 | _30=true;
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| 271 | } |
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| 272 | if(_2b){
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| 273 | this.onSet(_28,_29,_2d,_2a);
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| 274 | } |
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| 275 | return _30;
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| 276 | },_addReferenceToMap:function(_38,_39,_3a){ |
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| 277 | var _3b=this.getIdentity(_39); |
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| 278 | var _3c=_38[this._reverseRefMap]; |
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| 279 | if(!_3c){
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| 280 | _3c=_38[this._reverseRefMap]={};
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| 281 | } |
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| 282 | var _3d=_3c[_3b];
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| 283 | if(!_3d){
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| 284 | _3d=_3c[_3b]={};
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| 285 | } |
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| 286 | _3d[_3a]=true;
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| 287 | },_removeReferenceFromMap:function(_3e,_3f,_40){ |
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| 288 | var _41=this.getIdentity(_3f); |
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| 289 | var _42=_3e[this._reverseRefMap]; |
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| 290 | var _43;
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| 291 | if(_42){
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| 292 | for(_43 in _42){ |
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| 293 | if(_43==_41){
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| 294 | delete _42[_43][_40];
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| 295 | if(this._isEmpty(_42[_43])){ |
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| 296 | delete _42[_43];
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| 297 | } |
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| 298 | } |
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| 299 | } |
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| 300 | if(this._isEmpty(_42)){ |
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| 301 | delete _3e[this._reverseRefMap]; |
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| 302 | } |
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| 303 | } |
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| 304 | },_dumpReferenceMap:function(){ |
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| 305 | var i;
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| 306 | for(i=0;i<this._arrayOfAllItems.length;i++){ |
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| 307 | var _44=this._arrayOfAllItems[i]; |
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| 308 | if(_44&&_44[this._reverseRefMap]){ |
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| 309 | } |
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| 310 | } |
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| 311 | },_getValueOrValues:function(_45,_46){ |
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| 312 | var _47=undefined; |
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| 313 | if(this.hasAttribute(_45,_46)){ |
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| 314 | var _48=this.getValues(_45,_46); |
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| 315 | if(_48.length==1){ |
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| 316 | _47=_48[0];
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| 317 | }else{
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| 318 | _47=_48; |
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| 319 | } |
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| 320 | } |
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| 321 | return _47;
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| 322 | },_flatten:function(_49){ |
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| 323 | if(this.isItem(_49)){ |
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| 324 | var _4a=_49;
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| 325 | var _4b=this.getIdentity(_4a); |
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| 326 | var _4c={_reference:_4b}; |
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| 327 | return _4c;
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| 328 | }else{
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| 329 | if(typeof _49==="object"){ |
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| 330 | for(var _4d in this._datatypeMap){ |
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| 331 | var _4e=this._datatypeMap[_4d]; |
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| 332 | if(dojo.isObject(_4e)&&!dojo.isFunction(_4e)){
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| 333 | if(_49 instanceof _4e.type){ |
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| 334 | if(!_4e.serialize){
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| 335 | throw new Error("ItemFileWriteStore: No serializer defined for type mapping: ["+_4d+"]"); |
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| 336 | } |
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| 337 | return {_type:_4d,_value:_4e.serialize(_49)}; |
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| 338 | } |
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| 339 | }else{
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| 340 | if(_49 instanceof _4e){ |
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| 341 | return {_type:_4d,_value:_49.toString()}; |
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| 342 | } |
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| 343 | } |
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| 344 | } |
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| 345 | } |
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| 346 | return _49;
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| 347 | } |
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| 348 | },_getNewFileContentString:function(){ |
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| 349 | var _4f={};
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| 350 | var _50=this._getIdentifierAttribute(); |
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| 351 | if(_50!==Number){
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| 352 | _4f.identifier=_50; |
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| 353 | } |
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| 354 | if(this._labelAttr){ |
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| 355 | _4f.label=this._labelAttr;
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| 356 | } |
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| 357 | _4f.items=[]; |
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| 358 | for(var i=0;i<this._arrayOfAllItems.length;++i){ |
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| 359 | var _51=this._arrayOfAllItems[i]; |
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| 360 | if(_51!==null){ |
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| 361 | var _52={};
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| 362 | for(var key in _51){ |
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| 363 | if(key!==this._storeRefPropName&&key!==this._itemNumPropName&&key!==this._reverseRefMap&&key!==this._rootItemPropName){ |
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| 364 | var _53=key;
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| 365 | var _54=this.getValues(_51,_53); |
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| 366 | if(_54.length==1){ |
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| 367 | _52[_53]=this._flatten(_54[0]); |
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| 368 | }else{
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| 369 | var _55=[];
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| 370 | for(var j=0;j<_54.length;++j){ |
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| 371 | _55.push(this._flatten(_54[j]));
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| 372 | _52[_53]=_55; |
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| 373 | } |
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| 374 | } |
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| 375 | } |
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| 376 | } |
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| 377 | _4f.items.push(_52); |
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| 378 | } |
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| 379 | } |
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| 380 | var _56=true; |
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| 381 | return dojo.toJson(_4f,_56);
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| 382 | },_isEmpty:function(_57){ |
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| 383 | var _58=true; |
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| 384 | if(dojo.isObject(_57)){
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| 385 | var i;
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| 386 | for(i in _57){ |
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| 387 | _58=false;
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| 388 | break;
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| 389 | } |
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| 390 | }else{
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| 391 | if(dojo.isArray(_57)){
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| 392 | if(_57.length>0){ |
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| 393 | _58=false;
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| 394 | } |
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| 395 | } |
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| 396 | } |
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| 397 | return _58;
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| 398 | },save:function(_59){ |
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| 399 | this._assert(!this._saveInProgress); |
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| 400 | this._saveInProgress=true; |
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| 401 | var _5a=this; |
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| 402 | var _5b=function(){ |
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| 403 | _5a._pending={_newItems:{},_modifiedItems:{},_deletedItems:{}};
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| 404 | _5a._saveInProgress=false;
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| 405 | if(_59&&_59.onComplete){
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| 406 | var _5c=_59.scope||dojo.global;
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| 407 | _59.onComplete.call(_5c); |
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| 408 | } |
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| 409 | }; |
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| 410 | var _5d=function(){ |
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| 411 | _5a._saveInProgress=false;
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| 412 | if(_59&&_59.onError){
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| 413 | var _5e=_59.scope||dojo.global;
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| 414 | _59.onError.call(_5e); |
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| 415 | } |
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| 416 | }; |
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| 417 | if(this._saveEverything){ |
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| 418 | var _5f=this._getNewFileContentString(); |
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| 419 | this._saveEverything(_5b,_5d,_5f);
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| 420 | } |
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| 421 | if(this._saveCustom){ |
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| 422 | this._saveCustom(_5b,_5d);
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| 423 | } |
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| 424 | if(!this._saveEverything&&!this._saveCustom){ |
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| 425 | _5b(); |
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| 426 | } |
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| 427 | },revert:function(){ |
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| 428 | this._assert(!this._saveInProgress); |
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| 429 | var _60;
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| 430 | for(_60 in this._pending._modifiedItems){ |
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| 431 | var _61=this._pending._modifiedItems[_60]; |
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| 432 | var _62=null; |
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| 433 | if(this._itemsByIdentity){ |
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| 434 | _62=this._itemsByIdentity[_60];
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| 435 | }else{
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| 436 | _62=this._arrayOfAllItems[_60];
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| 437 | } |
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| 438 | _61[this._storeRefPropName]=this; |
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| 439 | for(key in _62){ |
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| 440 | delete _62[key];
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| 441 | } |
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| 442 | dojo.mixin(_62,_61); |
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| 443 | } |
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| 444 | var _63;
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| 445 | for(_60 in this._pending._deletedItems){ |
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| 446 | _63=this._pending._deletedItems[_60];
|
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| 447 | _63[this._storeRefPropName]=this; |
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| 448 | var _64=_63[this._itemNumPropName]; |
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| 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 | } |