root / trunk / web / dojo / dojox / data / FileStore.js @ 13
History | View | Annotate | Download (5.51 KB)
| 1 |
/*
|
|---|---|
| 2 |
Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
| 3 |
Available via Academic Free License >= 2.1 OR the modified BSD license.
|
| 4 |
see: http://dojotoolkit.org/license for details
|
| 5 |
*/
|
| 6 |
|
| 7 |
|
| 8 |
if(!dojo._hasResource["dojox.data.FileStore"]){ |
| 9 |
dojo._hasResource["dojox.data.FileStore"]=true; |
| 10 |
dojo.provide("dojox.data.FileStore");
|
| 11 |
dojo.declare("dojox.data.FileStore",null,{constructor:function(_1){ |
| 12 |
if(_1&&_1.label){
|
| 13 |
this.label=_1.label;
|
| 14 |
} |
| 15 |
if(_1&&_1.url){
|
| 16 |
this.url=_1.url;
|
| 17 |
} |
| 18 |
if(_1&&_1.options){
|
| 19 |
if(dojo.isArray(_1.options)){
|
| 20 |
this.options=_1.options;
|
| 21 |
}else{
|
| 22 |
if(dojo.isString(_1.options)){
|
| 23 |
this.options=_1.options.split(","); |
| 24 |
} |
| 25 |
} |
| 26 |
} |
| 27 |
if(_1&&_1.pathAsQueryParam){
|
| 28 |
this.pathAsQueryParam=true; |
| 29 |
} |
| 30 |
if(_1&&"urlPreventCache" in _1){ |
| 31 |
this.urlPreventCache=_1.urlPreventCache?true:false; |
| 32 |
} |
| 33 |
},url:"",_storeRef:"_S",label:"name",_identifier:"path",_attributes:["children","directory","name","path","modified","size","parentDir"],pathSeparator:"/",options:[],failOk:false,urlPreventCache:true,_assertIsItem:function(_2){ |
| 34 |
if(!this.isItem(_2)){ |
| 35 |
throw new Error("dojox.data.FileStore: a function was passed an item argument that was not an item"); |
| 36 |
} |
| 37 |
},_assertIsAttribute:function(_3){ |
| 38 |
if(typeof _3!=="string"){ |
| 39 |
throw new Error("dojox.data.FileStore: a function was passed an attribute argument that was not an attribute name string"); |
| 40 |
} |
| 41 |
},pathAsQueryParam:false,getFeatures:function(){ |
| 42 |
return {"dojo.data.api.Read":true,"dojo.data.api.Identity":true}; |
| 43 |
},getValue:function(_4,_5,_6){ |
| 44 |
var _7=this.getValues(_4,_5); |
| 45 |
if(_7&&_7.length>0){ |
| 46 |
return _7[0]; |
| 47 |
} |
| 48 |
return _6;
|
| 49 |
},getAttributes:function(_8){ |
| 50 |
return this._attributes; |
| 51 |
},hasAttribute:function(_9,_a){ |
| 52 |
this._assertIsItem(_9);
|
| 53 |
this._assertIsAttribute(_a);
|
| 54 |
return (_a in _9); |
| 55 |
},getIdentity:function(_b){ |
| 56 |
return this.getValue(_b,this._identifier); |
| 57 |
},getIdentityAttributes:function(_c){ |
| 58 |
return [this._identifier]; |
| 59 |
},isItemLoaded:function(_d){ |
| 60 |
var _e=this.isItem(_d); |
| 61 |
if(_e&&typeof _d._loaded=="boolean"&&!_d._loaded){ |
| 62 |
_e=false;
|
| 63 |
} |
| 64 |
return _e;
|
| 65 |
},loadItem:function(_f){ |
| 66 |
var _10=_f.item;
|
| 67 |
var _11=this; |
| 68 |
var _12=_f.scope||dojo.global;
|
| 69 |
var _13={};
|
| 70 |
if(this.options.length>0){ |
| 71 |
_13.options=dojo.toJson(this.options);
|
| 72 |
} |
| 73 |
if(this.pathAsQueryParam){ |
| 74 |
_13.path=_10.parentPath+this.pathSeparator+_10.name;
|
| 75 |
} |
| 76 |
var _14={url:this.pathAsQueryParam?this.url:this.url+"/"+_10.parentPath+"/"+_10.name,handleAs:"json-comment-optional",content:_13,preventCache:this.urlPreventCache,failOk:this.failOk}; |
| 77 |
var _15=dojo.xhrGet(_14);
|
| 78 |
_15.addErrback(function(_16){
|
| 79 |
if(_f.onError){
|
| 80 |
_f.onError.call(_12,_16); |
| 81 |
} |
| 82 |
}); |
| 83 |
_15.addCallback(function(_17){
|
| 84 |
delete _10.parentPath;
|
| 85 |
delete _10._loaded;
|
| 86 |
dojo.mixin(_10,_17); |
| 87 |
_11._processItem(_10); |
| 88 |
if(_f.onItem){
|
| 89 |
_f.onItem.call(_12,_10); |
| 90 |
} |
| 91 |
}); |
| 92 |
},getLabel:function(_18){ |
| 93 |
return this.getValue(_18,this.label); |
| 94 |
},getLabelAttributes:function(_19){ |
| 95 |
return [this.label]; |
| 96 |
},containsValue:function(_1a,_1b,_1c){ |
| 97 |
var _1d=this.getValues(_1a,_1b); |
| 98 |
for(var i=0;i<_1d.length;i++){ |
| 99 |
if(_1d[i]==_1c){
|
| 100 |
return true; |
| 101 |
} |
| 102 |
} |
| 103 |
return false; |
| 104 |
},getValues:function(_1e,_1f){ |
| 105 |
this._assertIsItem(_1e);
|
| 106 |
this._assertIsAttribute(_1f);
|
| 107 |
var _20=_1e[_1f];
|
| 108 |
if(typeof _20!=="undefined"&&!dojo.isArray(_20)){ |
| 109 |
_20=[_20]; |
| 110 |
}else{
|
| 111 |
if(typeof _20==="undefined"){ |
| 112 |
_20=[]; |
| 113 |
} |
| 114 |
} |
| 115 |
return _20;
|
| 116 |
},isItem:function(_21){ |
| 117 |
if(_21&&_21[this._storeRef]===this){ |
| 118 |
return true; |
| 119 |
} |
| 120 |
return false; |
| 121 |
},close:function(_22){ |
| 122 |
},fetch:function(_23){ |
| 123 |
_23=_23||{};
|
| 124 |
if(!_23.store){
|
| 125 |
_23.store=this;
|
| 126 |
} |
| 127 |
var _24=this; |
| 128 |
var _25=_23.scope||dojo.global;
|
| 129 |
var _26={};
|
| 130 |
if(_23.query){
|
| 131 |
_26.query=dojo.toJson(_23.query); |
| 132 |
} |
| 133 |
if(_23.sort){
|
| 134 |
_26.sort=dojo.toJson(_23.sort); |
| 135 |
} |
| 136 |
if(_23.queryOptions){
|
| 137 |
_26.queryOptions=dojo.toJson(_23.queryOptions); |
| 138 |
} |
| 139 |
if(typeof _23.start=="number"){ |
| 140 |
_26.start=""+_23.start;
|
| 141 |
} |
| 142 |
if(typeof _23.count=="number"){ |
| 143 |
_26.count=""+_23.count;
|
| 144 |
} |
| 145 |
if(this.options.length>0){ |
| 146 |
_26.options=dojo.toJson(this.options);
|
| 147 |
} |
| 148 |
var _27={url:this.url,preventCache:this.urlPreventCache,failOk:this.failOk,handleAs:"json-comment-optional",content:_26}; |
| 149 |
var _28=dojo.xhrGet(_27);
|
| 150 |
_28.addCallback(function(_29){
|
| 151 |
_24._processResult(_29,_23); |
| 152 |
}); |
| 153 |
_28.addErrback(function(_2a){
|
| 154 |
if(_23.onError){
|
| 155 |
_23.onError.call(_25,_2a,_23); |
| 156 |
} |
| 157 |
}); |
| 158 |
},fetchItemByIdentity:function(_2b){ |
| 159 |
var _2c=_2b.identity;
|
| 160 |
var _2d=this; |
| 161 |
var _2e=_2b.scope||dojo.global;
|
| 162 |
var _2f={};
|
| 163 |
if(this.options.length>0){ |
| 164 |
_2f.options=dojo.toJson(this.options);
|
| 165 |
} |
| 166 |
if(this.pathAsQueryParam){ |
| 167 |
_2f.path=_2c; |
| 168 |
} |
| 169 |
var _30={url:this.pathAsQueryParam?this.url:this.url+"/"+_2c,handleAs:"json-comment-optional",content:_2f,preventCache:this.urlPreventCache,failOk:this.failOk}; |
| 170 |
var _31=dojo.xhrGet(_30);
|
| 171 |
_31.addErrback(function(_32){
|
| 172 |
if(_2b.onError){
|
| 173 |
_2b.onError.call(_2e,_32); |
| 174 |
} |
| 175 |
}); |
| 176 |
_31.addCallback(function(_33){
|
| 177 |
var _34=_2d._processItem(_33);
|
| 178 |
if(_2b.onItem){
|
| 179 |
_2b.onItem.call(_2e,_34); |
| 180 |
} |
| 181 |
}); |
| 182 |
},_processResult:function(_35,_36){ |
| 183 |
var _37=_36.scope||dojo.global;
|
| 184 |
try{
|
| 185 |
if(_35.pathSeparator){
|
| 186 |
this.pathSeparator=_35.pathSeparator;
|
| 187 |
} |
| 188 |
if(_36.onBegin){
|
| 189 |
_36.onBegin.call(_37,_35.total,_36); |
| 190 |
} |
| 191 |
var _38=this._processItemArray(_35.items); |
| 192 |
if(_36.onItem){
|
| 193 |
var i;
|
| 194 |
for(i=0;i<_38.length;i++){ |
| 195 |
_36.onItem.call(_37,_38[i],_36); |
| 196 |
} |
| 197 |
_38=null;
|
| 198 |
} |
| 199 |
if(_36.onComplete){
|
| 200 |
_36.onComplete.call(_37,_38,_36); |
| 201 |
} |
| 202 |
} |
| 203 |
catch(e){
|
| 204 |
if(_36.onError){
|
| 205 |
_36.onError.call(_37,e,_36); |
| 206 |
}else{
|
| 207 |
} |
| 208 |
} |
| 209 |
},_processItemArray:function(_39){ |
| 210 |
var i;
|
| 211 |
for(i=0;i<_39.length;i++){ |
| 212 |
this._processItem(_39[i]);
|
| 213 |
} |
| 214 |
return _39;
|
| 215 |
},_processItem:function(_3a){ |
| 216 |
if(!_3a){
|
| 217 |
return null; |
| 218 |
} |
| 219 |
_3a[this._storeRef]=this; |
| 220 |
if(_3a.children&&_3a.directory){
|
| 221 |
if(dojo.isArray(_3a.children)){
|
| 222 |
var _3b=_3a.children;
|
| 223 |
var i;
|
| 224 |
for(i=0;i<_3b.length;i++){ |
| 225 |
var _3c=_3b[i];
|
| 226 |
if(dojo.isObject(_3c)){
|
| 227 |
_3b[i]=this._processItem(_3c);
|
| 228 |
}else{
|
| 229 |
_3b[i]={name:_3c,_loaded:false,parentPath:_3a.path};
|
| 230 |
_3b[i][this._storeRef]=this; |
| 231 |
} |
| 232 |
} |
| 233 |
}else{
|
| 234 |
delete _3a.children;
|
| 235 |
} |
| 236 |
} |
| 237 |
return _3a;
|
| 238 |
}}); |
| 239 |
} |