csvstore.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

if(!dojo._hasResource["dojox.data.tests.stores.CsvStore"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.data.tests.stores.CsvStore"] = true;
dojo.provide("dojox.data.tests.stores.CsvStore");
dojo.require("dojox.data.CsvStore");
dojo.require("dojo.data.api.Read");
dojo.require("dojo.data.api.Identity");

dojox.data.tests.stores.CsvStore.getDatasource = function(filepath){
	//  summary:
	//		A simple helper function for getting the sample data used in each of the tests.
	//  description:
	//		A simple helper function for getting the sample data used in each of the tests.

	var dataSource = {};
	if(dojo.isBrowser){
		dataSource.url = dojo.moduleUrl("dojox.data.tests", filepath).toString();            
	}else{
		// When running tests in Rhino, xhrGet is not available,
		// so we have the file data in the code below.
		switch(filepath){
			case "stores/movies.csv":
				var csvData = "";
				csvData += "Title, Year, Producer\n";
				csvData += "City of God, 2002, Katia Lund\n";
				csvData += "Rain,, Christine Jeffs\n";
				csvData += "2001: A Space Odyssey, 1968, Stanley Kubrick\n";
				csvData += '"This is a ""fake"" movie title", 1957, Sidney Lumet\n';
				csvData += "Alien, 1979   , Ridley Scott\n";
				csvData += '"The Sequel to ""Dances With Wolves.""", 1982, Ridley Scott\n';
				csvData += '"Caine Mutiny, The", 1954, "Dymtryk ""the King"", Edward"\n';
				break;
			case "stores/movies2.csv":
				var csvData = "";
				csvData += "Title, Year, Producer\n";
				csvData += "City of God, 2002, Katia Lund\n";
				csvData += "Rain,\"\", Christine Jeffs\n";
				csvData += "2001: A Space Odyssey, 1968, Stanley Kubrick\n";
				csvData += '"This is a ""fake"" movie title", 1957, Sidney Lumet\n';
				csvData += "Alien, 1979   , Ridley Scott\n";
				csvData += '"The Sequel to ""Dances With Wolves.""", 1982, Ridley Scott\n';
				csvData += '"Caine Mutiny, The", 1954, "Dymtryk ""the King"", Edward"\n';
				break;
			case "stores/books.csv":
				var csvData = "";
				csvData += "Title, Author\n";
				csvData += "The Transparent Society, David Brin\n";
				csvData += "The First Measured Century, Theodore Caplow\n";
				csvData += "Maps in a Mirror, Orson Scott Card\n";
				csvData += "Princess Smartypants, Babette Cole\n";
				csvData += "Carfree Cities, Crawford J.H.\n";
				csvData += "Down and Out in the Magic Kingdom, Cory Doctorow\n";
				csvData += "Tax Shift, Alan Thein Durning\n";
				csvData += "The Sneetches and other stories, Dr. Seuss\n";
				csvData += "News from Tartary, Peter Fleming\n";
				break;
			case "stores/patterns.csv":
				var csvData = "";
				csvData += "uniqueId, value\n";
				csvData += "9, jfq4@#!$!@Rf14r14i5u\n";
				csvData += "6, BaBaMaSaRa***Foo\n";
				csvData += "2, bar*foo\n";
				csvData += "8, 123abc\n";
				csvData += "4, bit$Bite\n";
				csvData += "3, 123abc\n";
				csvData += "10, 123abcdefg\n";
				csvData += "1, foo*bar\n";
				csvData += "7, \n";
				csvData += "5, 123abc\n"
				break;
		}
		dataSource.data = csvData;
	}
	return dataSource; //Object
}

dojox.data.tests.stores.CsvStore.verifyItems = function(csvStore, items, attribute, compareArray){
	//  summary:
	//		A helper function for validating that the items array is ordered
	//		the same as the compareArray
	if(items.length != compareArray.length){ return false; }
	for(var i = 0; i < items.length; i++){
		if(!(csvStore.getValue(items[i], attribute) === compareArray[i])){
			return false; //Boolean
		}
	}
	return true; //Boolean
}

dojox.data.tests.stores.CsvStore.error = function(t, d, errData){
	//  summary:
	//		The error callback function to be used for all of the tests.
	for (i in errData) {
		console.log(errData[i]);
	}
	d.errback(errData);	
}

doh.register("dojox.data.tests.stores.CsvStore", 
	[
		function testReadAPI_fetch_all(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore.
			//	description:
			//		Simple test of a basic fetch on CsvStore.
			
			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();
		function completedAll(items){
				t.assertTrue((items.length === 7));
				d.callback(true);
			}

			//Get everything...
			csvStore.fetch({ onComplete: completedAll, onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)});
			return d; //Object
		},
		function testReadAPI_fetch_all_withEmptyStringField(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore.
			//	description:
			//		Simple test of a basic fetch on CsvStore.
			
			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies2.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();
		function completedAll(items){
				t.assertTrue((items.length === 7));
				d.callback(true);
			}

			//Get everything...
			csvStore.fetch({ onComplete: completedAll, onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)});
			return d; //Object
		},
		function testReadAPI_fetch_one(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore of a single item.
			//	description:
			//		Simple test of a basic fetch on CsvStore of a single item.

			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();
			function onComplete(items, request){
				t.is(1, items.length);
				d.callback(true);
			}
			csvStore.fetch({ 	query: {Title: "*Sequel*"}, 
								onComplete: onComplete, 
								onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
							});
			return d; //Object
		},
		function testReadAPI_fetch_Multiple(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore of a single item.
			//	description:
			//		Simple test of a basic fetch on CsvStore of a single item.

			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();

			var done = [false, false];

			function onCompleteOne(items, request){
				done[0] = true;
				t.is(1, items.length);
				if(done[0] && done[1]){
					d.callback(true);
				}
			}
			
			function onCompleteTwo(items, request){
				done[1] = true;
				t.is(1, items.length);
				if(done[0] && done[1]){
					d.callback(true);
				}
			}
			
			try
			{
				csvStore.fetch({ 	query: {Title: "*Sequel*"}, 
									onComplete: onCompleteOne, 
									onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
								});
				csvStore.fetch({ 	query: {Title: "2001:*"}, 
									onComplete: onCompleteTwo, 
									onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
								});
			}
			catch(e)
			{
				for (i in e) {
					console.log(e[i]);
				}
			}

			return d; //Object
		},
		function testReadAPI_fetch_MultipleMixed(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore of a single item.
			//	description:
			//		Simple test of a basic fetch on CsvStore of a single item.

			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();

			var done = [false, false];
			function onComplete(items, request){
				done[0] = true;
				t.is(1, items.length);
				if(done[0] && done[1]){
					d.callback(true);
				}
			}
			
			function onItem(item){
				done[1] = true;
				t.assertTrue(item !== null);
				t.is('Dymtryk "the King", Edward', csvStore.getValue(item,"Producer"));
				t.is('Caine Mutiny, The', csvStore.getValue(item,"Title"));
				if(done[0] && done[1]){
					d.callback(true);
				}
			}

			csvStore.fetch({ 	query: {Title: "*Sequel*"}, 
								onComplete: onComplete, 
								onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
							});
			
			csvStore.fetchItemByIdentity({identity: "6", onItem: onItem, onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)});
			return d; //Object
		},
		function testReadAPI_fetch_all_streaming(t){
			//	summary: 
			//		Simple test of a basic fetch on CsvStore.
			//	description:
			//		Simple test of a basic fetch on CsvStore.

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

			var d = new doh.Deferred();
			count = 0;

			function onBegin(size, requestObj){
				t.assertTrue(size === 7);
			}
			function onItem(item, requestObj){
				t.assertTrue(csvStore.isItem(item));
				count++;
			}
			function onComplete(items, request){
				t.is(7, count);
				t.is(null, items);
			    d.callback(true);
			}

			//Get everything...
			csvStore.fetch({	onBegin: onBegin,
								onItem: onItem, 
								onComplete: onComplete,
								onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
							});
			return d; //Object
		},
		function testReadAPI_fetch_paging(t){
			 //	summary: 
			 //		Test of multiple fetches on a single result.  Paging, if you will.
			 //	description:
			 //		Test of multiple fetches on a single result.  Paging, if you will.

			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();
			function dumpFirstFetch(items, request){
				t.is(5, items.length);
				request.start = 3;
				request.count = 1;
				request.onComplete = dumpSecondFetch;
				csvStore.fetch(request);
			}

			function dumpSecondFetch(items, request){
				t.is(1, items.length);
				request.start = 0;
				request.count = 5;
				request.onComplete = dumpThirdFetch;
				csvStore.fetch(request);
			}

			function dumpThirdFetch(items, request){
				t.is(5, items.length);
				request.start = 2;
				request.count = 20;
				request.onComplete = dumpFourthFetch;
				csvStore.fetch(request);
			}

			function dumpFourthFetch(items, request){
				t.is(5, items.length);
				request.start = 9;
				request.count = 100;
				request.onComplete = dumpFifthFetch;
				csvStore.fetch(request);
			}

			function dumpFifthFetch(items, request){
				t.is(0, items.length);
				request.start = 2;
				request.count = 20;
				request.onComplete = dumpSixthFetch;
				csvStore.fetch(request);
			}

			function dumpSixthFetch(items, request){
				t.is(5, items.length);
			    d.callback(true);
			}

			function completed(items, request){
				t.is(7, items.length);
				request.start = 1;
				request.count = 5;
				request.onComplete = dumpFirstFetch;
				csvStore.fetch(request);
			}

			csvStore.fetch({onComplete: completed, onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)});
			return d; //Object

		},
		
		function testReadAPI_getLabel(t){
			//	summary: 
			//		Simple test of the getLabel function against a store set that has a label defined.
			//	description:
			//		Simple test of the getLabel function against a store set that has a label defined.

			var args = dojox.data.tests.stores.CsvStore.getDatasource("stores/movies.csv");
			args.label = "Title";
			var csvStore = new dojox.data.CsvStore(args);
			
			var d = new doh.Deferred();
			function onComplete(items, request){
				t.assertEqual(items.length, 1);
				var label = csvStore.getLabel(items[0]);
				t.assertTrue(label !== null);
				t.assertEqual("The Sequel to \"Dances With Wolves.\"", label);
				d.callback(true);
			}
			csvStore.fetch({ 	query: {Title: "*Sequel*"}, 
								onComplete: onComplete, 
								onError: dojo.partial(dojox.data.tests.stores.CsvStore.error, t, d)
							});
			return d;
		},
		function testReadAPI_getLabelAttributes(t){
			//	summary: 
			//		Simple test of the getLabelAttributes function against a store set that has a label defined.
			//	description:
			//		Simple test of the getLabelAttributes function against a store set that has a label defined.

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