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