keyvaluestore.js

这是一个ajax的例子大家好好的看看就是一个鱼眼的效果

			 var keyStore = new dojox.data.KeyValueStore(args);
			
			var d = new doh.Deferred();
			function onComplete(items, request){
				t.assertEqual(items.length, 1);
				var labelList = keyStore.getLabelAttributes(items[0]);
				t.assertTrue(dojo.isArray(labelList));
				t.assertEqual("key", labelList[0]);
				d.callback(true);
			}
			keyStore.fetch({ 	query: {key: "year"}, 
								onComplete: onComplete, 
								onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)
							});
			return d;
		},
		function testReadAPI_getValue(t){
			//	summary: 
			//		Simple test of the getValue function of the store.
			//	description:
			//		Simple test of the getValue function of the store.

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.is("nday", keyStore.getValue(item,"key"));
				t.is(1, keyStore.getValue(item,"value"));
				t.is(1, keyStore.getValue(item,"nday"));
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "nday", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},	
		function testReadAPI_getValue_2(t){
			//	summary: 
			//		Simple test of the getValue function of the store.
			//	description:
			//		Simple test of the getValue function of the store.

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.is("day", keyStore.getValue(item,"key"));
				t.is("Saturday", keyStore.getValue(item,"value"));
				t.is("Saturday", keyStore.getValue(item,"day"));
				d.callback(true);	
			}
            keyStore.fetchItemByIdentity({identity: "day", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},	
		function testReadAPI_getValue_3(t){
			//	summary: 
			//		Simple test of the getValue function of the store.
			//	description:
			//		Simple test of the getValue function of the store.

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.is("dayOfYear", keyStore.getValue(item,"key"));
				t.is(335, keyStore.getValue(item,"value"));
				t.is(335, keyStore.getValue(item,"dayOfYear"));
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "dayOfYear", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},	
		function testReadAPI_getValue_4(t){
			//	summary: 
			//		Simple test of the getValue function of the store.
			//	description:
			//		Simple test of the getValue function of the store.

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.is("weekOfYear", keyStore.getValue(item,"key"));
				t.is(48, keyStore.getValue(item,"value"));
				t.is(48, keyStore.getValue(item,"weekOfYear"));
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "weekOfYear", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},
		function testReadAPI_getValues(t){
			//	summary: 
			//		Simple test of the getValues function of the store.
			//	description:
			//		Simple test of the getValues function of the store.

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				var names = keyStore.getValues(item,"year");
				t.assertTrue(dojo.isArray(names));
				t.is(1, names.length);
				t.is(2007, names[0]);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},
		function testIdentityAPI_fetchItemByIdentity(t){
			//	summary: 
			//		Simple test of the fetchItemByIdentity function of the store.
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
			
			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},

		function testIdentityAPI_fetchItemByIdentity_bad1(t){
			//	summary: 
			//		Simple test of the fetchItemByIdentity function of the store.
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
			
			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item === null);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "y3ar", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},
		function testIdentityAPI_fetchItemByIdentity_bad2(t){
			//	summary: 
			//		Simple test of the fetchItemByIdentity function of the store.
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item === null);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "-1", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},
		function testIdentityAPI_fetchItemByIdentity_bad3(t){
			//	summary: 
			//		Simple test of the fetchItemByIdentity function of the store.
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item === null);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "999999", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d;
		},
		function testIdentityAPI_getIdentity(t){
			//	summary: 
			//		Simple test of the fetchItemByIdentity function of the store.
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
			
			var d = new doh.Deferred();
			function completed(items, request){
				t.is(7, items.length);
				t.is(keyStore.getIdentity(items[0]), 'year');
				t.is(keyStore.getIdentity(items[1]), 'nmonth');
				t.is(keyStore.getIdentity(items[2]), 'month');
				t.is(keyStore.getIdentity(items[3]), 'nday');
				t.is(keyStore.getIdentity(items[4]), 'day');
				t.is(keyStore.getIdentity(items[5]), 'dayOfYear');
				t.is(keyStore.getIdentity(items[6]), 'weekOfYear');
				d.callback(true);
			}
			
			//Get everything...
			keyStore.fetch({ onComplete: completed, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
			return d; //Object
		},
		function testIdentityAPI_getIdentityAttributes(t){
			//	summary: 
			//		Simple test of the getIdentityAttributes
			//	description:
			//		Simple test of the fetchItemByIdentity function of the store.
			
			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(keyStore.isItem(item));
				t.assertEqual("key", keyStore.getIdentityAttributes(item)); 
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
		   	return d;
		},
		function testReadAPI_isItem(t){
			//	summary: 
			//		Simple test of the isItem function of the store
			//	description:
			//		Simple test of the isItem function of the store

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(keyStore.isItem(item));
				t.assertTrue(!keyStore.isItem({}));
				t.assertTrue(!keyStore.isItem({ item: "not an item" }));
				t.assertTrue(!keyStore.isItem("not an item"));
				t.assertTrue(!keyStore.isItem(["not an item"]));
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
		   	return d;
		},
		function testReadAPI_hasAttribute(t){
			//	summary: 
			//		Simple test of the hasAttribute function of the store
			//	description:
			//		Simple test of the hasAttribute function of the store

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.assertTrue(keyStore.hasAttribute(item, "key"));
				t.assertTrue(keyStore.hasAttribute(item, "value"));
				t.assertTrue(keyStore.hasAttribute(item, "year"));
				t.assertTrue(!keyStore.hasAttribute(item, "Year"));
				t.assertTrue(!keyStore.hasAttribute(item, "Nothing"));
				t.assertTrue(!keyStore.hasAttribute(item, "Title"));

				//Test that null attributes throw an exception
				var passed = false;
				try{
					keyStore.hasAttribute(item, null);
				}catch (e){
					passed = true;
				}
				t.assertTrue(passed);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
		   	return d;
		},
		function testReadAPI_containsValue(t){
			//	summary:  
			//		Simple test of the containsValue function of the store
			//	description:
			//		Simple test of the containsValue function of the store

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);
 			
			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.assertTrue(keyStore.containsValue(item, "year", "2007"));
				t.assertTrue(keyStore.containsValue(item, "value", "2007"));
				t.assertTrue(keyStore.containsValue(item, "key", "year"));
				t.assertTrue(!keyStore.containsValue(item, "Title", "Alien2"));
				t.assertTrue(!keyStore.containsValue(item, "Year", "1979   "));
				t.assertTrue(!keyStore.containsValue(item, "Title", null));

				//Test that null attributes throw an exception
				var passed = false;
				try{
					keyStore.containsValue(item, null, "foo");
				}catch (e){
					passed = true;
				}
				t.assertTrue(passed);
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});
		   	return d;
		},
		function testReadAPI_getAttributes(t){
			//	summary: 
			//		Simple test of the getAttributes function of the store
			//	description:
			//		Simple test of the getAttributes function of the store

			var args = dojox.data.tests.stores.KeyValueStore.getDatasource("stores/movies.csv");
			var keyStore = new dojox.data.KeyValueStore(args);

			var d = new doh.Deferred();
			function onItem(item){
				t.assertTrue(item !== null);
				t.assertTrue(keyStore.isItem(item));

				var attributes = keyStore.getAttributes(item);
				t.is(3, attributes.length);
				for(var i = 0; i < attributes.length; i++){
					t.assertTrue((attributes[i] === "year" || attributes[i] === "value" || attributes[i] === "key"));
				}
				d.callback(true);	
			}
			keyStore.fetchItemByIdentity({identity: "year", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.KeyValueStore.error, t, d)});