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- define("dojo/store/DataStore", ["../_base/lang", "../_base/declare", "../_base/Deferred", "../_base/array", "./util/QueryResults"
- ], function(lang,declare,Deferred,array,QueryResults) {
-
-
-
-
- return declare("dojo.store.DataStore", null, {
- target: "",
- constructor: function(options){
-
-
-
-
-
-
-
- lang.mixin(this, options);
- if(!"idProperty" in options){
- var idAttribute;
- try{
- idAttribute = this.store.getIdentityAttributes();
- }catch(e){
-
-
- }
-
- this.idProperty = (!idAttribute || !idAttributes[0]) || this.idProperty;
- }
- var features = this.store.getFeatures();
-
- if(!features["dojo.data.api.Read"]){
- this.get = null;
- }
- if(!features["dojo.data.api.Identity"]){
- this.getIdentity = null;
- }
- if(!features["dojo.data.api.Write"]){
- this.put = this.add = null;
- }
- },
-
-
- idProperty: "id",
-
-
- store: null,
- _objectConverter: function(callback){
- var store = this.store;
- var idProperty = this.idProperty;
- return function(item){
- var object = {};
- var attributes = store.getAttributes(item);
- for(var i = 0; i < attributes.length; i++){
- object[attributes[i]] = store.getValue(item, attributes[i]);
- }
- if(!(idProperty in object)){
- object[idProperty] = store.getIdentity(item);
- }
- return callback(object);
- };
- },
- get: function(id, options){
-
-
-
-
- var returnedObject, returnedError;
- var deferred = new Deferred();
- this.store.fetchItemByIdentity({
- identity: id,
- onItem: this._objectConverter(function(object){
- deferred.resolve(returnedObject = object);
- }),
- onError: function(error){
- deferred.reject(returnedError = error);
- }
- });
- if(returnedObject){
-
- return returnedObject;
- }
- if(returnedError){
- throw returnedError;
- }
- return deferred.promise;
- },
- put: function(object, options){
-
-
-
-
-
-
-
- var id = options && typeof options.id != "undefined" || this.getIdentity(object);
- var store = this.store;
- var idProperty = this.idProperty;
- if(typeof id == "undefined"){
- store.newItem(object);
- }else{
- store.fetchItemByIdentity({
- identity: id,
- onItem: function(item){
- if(item){
- for(var i in object){
- if(i != idProperty &&
- store.getValue(item, i) != object[i]){
- store.setValue(item, i, object[i]);
- }
- }
- }else{
- store.newItem(object);
- }
- }
- });
- }
- },
- remove: function(id){
-
-
-
-
- var store = this.store;
- this.store.fetchItemByIdentity({
- identity: id,
- onItem: function(item){
- store.deleteItem(item);
- }
- });
- },
- query: function(query, options){
-
-
-
-
-
-
-
-
- var fetchHandle;
- var deferred = new Deferred(function(){ fetchHandle.abort && fetchHandle.abort(); });
- deferred.total = new Deferred();
- var converter = this._objectConverter(function(object){return object;});
- fetchHandle = this.store.fetch(lang.mixin({
- query: query,
- onBegin: function(count){
- deferred.total.resolve(count);
- },
- onComplete: function(results){
- deferred.resolve(array.map(results, converter));
- },
- onError: function(error){
- deferred.reject(error);
- }
- }, options));
- return QueryResults(deferred);
- },
- getIdentity: function(object){
-
-
-
-
-
-
- return object[this.idProperty];
- }
- });
- });
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