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