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 | } |