root / trunk / web / dojo / dojox / data / CdfStore.js
History | View | Annotate | Download (6.6 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 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.CdfStore"]){ |
||
| 9 | dojo._hasResource["dojox.data.CdfStore"]=true; |
||
| 10 | dojo.provide("dojox.data.CdfStore");
|
||
| 11 | dojo.require("dojo.data.util.sorter");
|
||
| 12 | dojox.data.ASYNC_MODE=0;
|
||
| 13 | dojox.data.SYNC_MODE=1;
|
||
| 14 | dojo.declare("dojox.data.CdfStore",null,{identity:"jsxid",url:"",xmlStr:"",data:null,label:"",mode:dojox.data.ASYNC_MODE,constructor:function(_1){ |
||
| 15 | if(_1){
|
||
| 16 | this.url=_1.url;
|
||
| 17 | this.xmlStr=_1.xmlStr||_1.str;
|
||
| 18 | if(_1.data){
|
||
| 19 | this.xmlStr=this._makeXmlString(_1.data); |
||
| 20 | } |
||
| 21 | this.identity=_1.identity||this.identity; |
||
| 22 | this.label=_1.label||this.label; |
||
| 23 | this.mode=_1.mode!==undefined?_1.mode:this.mode; |
||
| 24 | } |
||
| 25 | this._modifiedItems={};
|
||
| 26 | this.byId=this.fetchItemByIdentity; |
||
| 27 | },getValue:function(_2,_3,_4){ |
||
| 28 | return _2.getAttribute(_3)||_4;
|
||
| 29 | },getValues:function(_5,_6){ |
||
| 30 | var v=this.getValue(_5,_6,[]); |
||
| 31 | return dojo.isArray(v)?v:[v];
|
||
| 32 | },getAttributes:function(_7){ |
||
| 33 | return _7.getAttributeNames();
|
||
| 34 | },hasAttribute:function(_8,_9){ |
||
| 35 | return (this.getValue(_8,_9)!==undefined); |
||
| 36 | },hasProperty:function(_a,_b){ |
||
| 37 | return this.hasAttribute(_a,_b); |
||
| 38 | },containsValue:function(_c,_d,_e){ |
||
| 39 | var _f=this.getValues(_c,_d); |
||
| 40 | for(var i=0;i<_f.length;i++){ |
||
| 41 | if(_f[i]===null){ |
||
| 42 | continue;
|
||
| 43 | } |
||
| 44 | if((typeof _e==="string")){ |
||
| 45 | if(_f[i].toString&&_f[i].toString()===_e){
|
||
| 46 | return true; |
||
| 47 | } |
||
| 48 | }else{
|
||
| 49 | if(_f[i]===_e){
|
||
| 50 | return true; |
||
| 51 | } |
||
| 52 | } |
||
| 53 | } |
||
| 54 | return false; |
||
| 55 | },isItem:function(_10){ |
||
| 56 | if(_10.getClass&&_10.getClass().equals(jsx3.xml.Entity.jsxclass)){
|
||
| 57 | return true; |
||
| 58 | } |
||
| 59 | return false; |
||
| 60 | },isItemLoaded:function(_11){ |
||
| 61 | return this.isItem(_11); |
||
| 62 | },loadItem:function(_12){ |
||
| 63 | },getFeatures:function(){ |
||
| 64 | return {"dojo.data.api.Read":true,"dojo.data.api.Write":true,"dojo.data.api.Identity":true}; |
||
| 65 | },getLabel:function(_13){ |
||
| 66 | if((this.label!=="")&&this.isItem(_13)){ |
||
| 67 | var _14=this.getValue(_13,this.label); |
||
| 68 | if(_14){
|
||
| 69 | return _14.toString();
|
||
| 70 | } |
||
| 71 | } |
||
| 72 | return undefined; |
||
| 73 | },getLabelAttributes:function(_15){ |
||
| 74 | if(this.label!==""){ |
||
| 75 | return [this.label]; |
||
| 76 | } |
||
| 77 | return null; |
||
| 78 | },fetch:function(_16){ |
||
| 79 | _16=_16||{};
|
||
| 80 | if(!_16.store){
|
||
| 81 | _16.store=this;
|
||
| 82 | } |
||
| 83 | if(_16.mode!==undefined){ |
||
| 84 | this.mode=_16.mode;
|
||
| 85 | } |
||
| 86 | var _17=this; |
||
| 87 | var _18=function(_19){ |
||
| 88 | if(_16.onError){
|
||
| 89 | var _1a=_16.scope||dojo.global;
|
||
| 90 | _16.onError.call(_1a,_19,_16); |
||
| 91 | }else{
|
||
| 92 | console.error("cdfStore Error:",_19);
|
||
| 93 | } |
||
| 94 | }; |
||
| 95 | var _1b=function(_1c,_1d){ |
||
| 96 | _1d=_1d||_16; |
||
| 97 | var _1e=_1d.abort||null; |
||
| 98 | var _1f=false; |
||
| 99 | var _20=_1d.start?_1d.start:0; |
||
| 100 | var _21=(_1d.count&&(_1d.count!==Infinity))?(_20+_1d.count):_1c.length; |
||
| 101 | _1d.abort=function(){ |
||
| 102 | _1f=true;
|
||
| 103 | if(_1e){
|
||
| 104 | _1e.call(_1d); |
||
| 105 | } |
||
| 106 | }; |
||
| 107 | var _22=_1d.scope||dojo.global;
|
||
| 108 | if(!_1d.store){
|
||
| 109 | _1d.store=_17; |
||
| 110 | } |
||
| 111 | if(_1d.onBegin){
|
||
| 112 | _1d.onBegin.call(_22,_1c.length,_1d); |
||
| 113 | } |
||
| 114 | if(_1d.sort){
|
||
| 115 | _1c.sort(dojo.data.util.sorter.createSortFunction(_1d.sort,_17)); |
||
| 116 | } |
||
| 117 | if(_1d.onItem){
|
||
| 118 | for(var i=_20;(i<_1c.length)&&(i<_21);++i){ |
||
| 119 | var _23=_1c[i];
|
||
| 120 | if(!_1f){
|
||
| 121 | _1d.onItem.call(_22,_23,_1d); |
||
| 122 | } |
||
| 123 | } |
||
| 124 | } |
||
| 125 | if(_1d.onComplete&&!_1f){
|
||
| 126 | if(!_1d.onItem){
|
||
| 127 | _1c=_1c.slice(_20,_21); |
||
| 128 | if(_1d.byId){
|
||
| 129 | _1c=_1c[0];
|
||
| 130 | } |
||
| 131 | } |
||
| 132 | _1d.onComplete.call(_22,_1c,_1d); |
||
| 133 | }else{
|
||
| 134 | _1c=_1c.slice(_20,_21); |
||
| 135 | if(_1d.byId){
|
||
| 136 | _1c=_1c[0];
|
||
| 137 | } |
||
| 138 | } |
||
| 139 | return _1c;
|
||
| 140 | }; |
||
| 141 | if(!this.url&&!this.data&&!this.xmlStr){ |
||
| 142 | _18(new Error("No URL or data specified.")); |
||
| 143 | return false; |
||
| 144 | } |
||
| 145 | var _24=_16||"*"; |
||
| 146 | if(this.mode==dojox.data.SYNC_MODE){ |
||
| 147 | var res=this._loadCDF(); |
||
| 148 | if(res instanceof Error){ |
||
| 149 | if(_16.onError){
|
||
| 150 | _16.onError.call(_16.scope||dojo.global,res,_16); |
||
| 151 | }else{
|
||
| 152 | console.error("CdfStore Error:",res);
|
||
| 153 | } |
||
| 154 | return res;
|
||
| 155 | } |
||
| 156 | this.cdfDoc=res;
|
||
| 157 | var _25=this._getItems(this.cdfDoc,_24); |
||
| 158 | if(_25&&_25.length>0){ |
||
| 159 | _25=_1b(_25,_16); |
||
| 160 | }else{
|
||
| 161 | _25=_1b([],_16); |
||
| 162 | } |
||
| 163 | return _25;
|
||
| 164 | }else{
|
||
| 165 | var dfd=this._loadCDF(); |
||
| 166 | dfd.addCallbacks(dojo.hitch(this,function(_26){ |
||
| 167 | var _27=this._getItems(this.cdfDoc,_24); |
||
| 168 | if(_27&&_27.length>0){ |
||
| 169 | _1b(_27,_16); |
||
| 170 | }else{
|
||
| 171 | _1b([],_16); |
||
| 172 | } |
||
| 173 | }),dojo.hitch(this,function(err){ |
||
| 174 | _18(err,_16); |
||
| 175 | })); |
||
| 176 | return dfd;
|
||
| 177 | } |
||
| 178 | },_loadCDF:function(){ |
||
| 179 | var dfd=new dojo.Deferred(); |
||
| 180 | if(this.cdfDoc){ |
||
| 181 | if(this.mode==dojox.data.SYNC_MODE){ |
||
| 182 | return this.cdfDoc; |
||
| 183 | }else{
|
||
| 184 | setTimeout(dojo.hitch(this,function(){ |
||
| 185 | dfd.callback(this.cdfDoc);
|
||
| 186 | }),0);
|
||
| 187 | return dfd;
|
||
| 188 | } |
||
| 189 | } |
||
| 190 | this.cdfDoc=jsx3.xml.CDF.Document.newDocument();
|
||
| 191 | this.cdfDoc.subscribe("response",this,function(evt){ |
||
| 192 | dfd.callback(this.cdfDoc);
|
||
| 193 | }); |
||
| 194 | this.cdfDoc.subscribe("error",this,function(err){ |
||
| 195 | dfd.errback(err); |
||
| 196 | }); |
||
| 197 | this.cdfDoc.setAsync(!this.mode); |
||
| 198 | if(this.url){ |
||
| 199 | this.cdfDoc.load(this.url); |
||
| 200 | }else{
|
||
| 201 | if(this.xmlStr){ |
||
| 202 | this.cdfDoc.loadXML(this.xmlStr); |
||
| 203 | if(this.cdfDoc.getError().code){ |
||
| 204 | return new Error(this.cdfDoc.getError().description); |
||
| 205 | } |
||
| 206 | } |
||
| 207 | } |
||
| 208 | if(this.mode==dojox.data.SYNC_MODE){ |
||
| 209 | return this.cdfDoc; |
||
| 210 | }else{
|
||
| 211 | return dfd;
|
||
| 212 | } |
||
| 213 | },_getItems:function(_28,_29){ |
||
| 214 | var itr=_28.selectNodes(_29.query,false,1); |
||
| 215 | var _2a=[];
|
||
| 216 | while(itr.hasNext()){
|
||
| 217 | _2a.push(itr.next()); |
||
| 218 | } |
||
| 219 | return _2a;
|
||
| 220 | },close:function(_2b){ |
||
| 221 | },newItem:function(_2c,_2d){ |
||
| 222 | _2c=(_2c||{});
|
||
| 223 | if(_2c.tagName){
|
||
| 224 | if(_2c.tagName!="record"){ |
||
| 225 | console.warn("Only record inserts are supported at this time");
|
||
| 226 | } |
||
| 227 | delete _2c.tagName;
|
||
| 228 | } |
||
| 229 | _2c.jsxid=_2c.jsxid||this.cdfDoc.getKey();
|
||
| 230 | if(this.isItem(_2d)){ |
||
| 231 | _2d=this.getIdentity(_2d);
|
||
| 232 | } |
||
| 233 | var _2e=this.cdfDoc.insertRecord(_2c,_2d); |
||
| 234 | this._makeDirty(_2e);
|
||
| 235 | return _2e;
|
||
| 236 | },deleteItem:function(_2f){ |
||
| 237 | this.cdfDoc.deleteRecord(this.getIdentity(_2f)); |
||
| 238 | this._makeDirty(_2f);
|
||
| 239 | return true; |
||
| 240 | },setValue:function(_30,_31,_32){ |
||
| 241 | this._makeDirty(_30);
|
||
| 242 | _30.setAttribute(_31,_32); |
||
| 243 | return true; |
||
| 244 | },setValues:function(_33,_34,_35){ |
||
| 245 | this._makeDirty(_33);
|
||
| 246 | console.warn("cdfStore.setValues only partially implemented.");
|
||
| 247 | return _33.setAttribute(_34,_35);
|
||
| 248 | },unsetAttribute:function(_36,_37){ |
||
| 249 | this._makeDirty(_36);
|
||
| 250 | _36.removeAttribute(_37); |
||
| 251 | return true; |
||
| 252 | },revert:function(){ |
||
| 253 | delete this.cdfDoc; |
||
| 254 | this._modifiedItems={};
|
||
| 255 | return true; |
||
| 256 | },isDirty:function(_38){ |
||
| 257 | if(_38){
|
||
| 258 | return !!this._modifiedItems[this.getIdentity(_38)]; |
||
| 259 | }else{
|
||
| 260 | var _39=false; |
||
| 261 | for(var nm in this._modifiedItems){ |
||
| 262 | _39=true;
|
||
| 263 | break;
|
||
| 264 | } |
||
| 265 | return _39;
|
||
| 266 | } |
||
| 267 | },_makeDirty:function(_3a){ |
||
| 268 | var id=this.getIdentity(_3a); |
||
| 269 | this._modifiedItems[id]=_3a;
|
||
| 270 | },_makeXmlString:function(obj){ |
||
| 271 | var _3b=function(obj,_3c){ |
||
| 272 | var _3d=""; |
||
| 273 | var nm;
|
||
| 274 | if(dojo.isArray(obj)){
|
||
| 275 | for(var i=0;i<obj.length;i++){ |
||
| 276 | _3d+=_3b(obj[i],_3c); |
||
| 277 | } |
||
| 278 | }else{
|
||
| 279 | if(dojo.isObject(obj)){
|
||
| 280 | _3d+="<"+_3c+" "; |
||
| 281 | for(nm in obj){ |
||
| 282 | if(!dojo.isObject(obj[nm])){
|
||
| 283 | _3d+=nm+"=\""+obj[nm]+"\" "; |
||
| 284 | } |
||
| 285 | } |
||
| 286 | _3d+=">";
|
||
| 287 | for(nm in obj){ |
||
| 288 | if(dojo.isObject(obj[nm])){
|
||
| 289 | _3d+=_3b(obj[nm],nm); |
||
| 290 | } |
||
| 291 | } |
||
| 292 | _3d+="</"+_3c+">"; |
||
| 293 | } |
||
| 294 | } |
||
| 295 | return _3d;
|
||
| 296 | }; |
||
| 297 | return _3b(obj,"data"); |
||
| 298 | },getIdentity:function(_3e){ |
||
| 299 | return this.getValue(_3e,this.identity); |
||
| 300 | },getIdentityAttributes:function(_3f){ |
||
| 301 | return [this.identity]; |
||
| 302 | },fetchItemByIdentity:function(_40){ |
||
| 303 | if(dojo.isString(_40)){
|
||
| 304 | var id=_40;
|
||
| 305 | _40={query:"//record[@jsxid='"+id+"']",mode:dojox.data.SYNC_MODE};
|
||
| 306 | }else{
|
||
| 307 | if(_40){
|
||
| 308 | _40.query="//record[@jsxid='"+_40.identity+"']"; |
||
| 309 | } |
||
| 310 | if(!_40.mode){
|
||
| 311 | _40.mode=this.mode;
|
||
| 312 | } |
||
| 313 | } |
||
| 314 | _40.byId=true;
|
||
| 315 | return this.fetch(_40); |
||
| 316 | },byId:function(_41){ |
||
| 317 | }}); |
||
| 318 | } |