DataSource Utility: DataSource.Get
+ +
+
+
+
+ DataSource.Get uses the Get Utility to retrieve data, even cross-domain resources, via a dynamically created script node. A DataSchema plugin is used to normalize incoming data into a known format for consistency of usage by other components. Please note that your data resource must support a callback mechanism, which is a function wrapper around the returned data. The name of the callback function is passed to the resource via a query string parameter defined by the DataSource.Get attribute
+
+ scriptCallbackParam.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Use a DataSourceJSONSchema plugin to parse the data against a schema that you provide:
+ +
YUI().use("datasource-get", "datasource-jsonschema", function(Y) { var myDataSource = new Y.DataSource.Get({ source:"http://query.yahooapis.com/v1/public/yql?format=json&"}), myCallback = { success: function(e){ alert(e.response); }, failure: function(e){ alert("Could not retrieve data: " + e.error.message); } }; myDataSource.plug(Y.Plugin.DataSourceJSONSchema, { schema: { resultListLocator: "query.results.result", resultFields: ["title"] } }); myDataSource.sendRequest(" q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22", myCallback); });
YUI().use("datasource-get", "datasource-jsonschema", function(Y) { + var myDataSource = new Y.DataSource.Get({ + source:"http://query.yahooapis.com/v1/public/yql?format=json&"}), + myCallback = { + success: function(e){ + alert(e.response); + }, + failure: function(e){ + alert("Could not retrieve data: " + e.error.message); + } + }; + + myDataSource.plug(Y.Plugin.DataSourceJSONSchema, { + schema: { + resultListLocator: "query.results.result", + resultFields: ["title"] + } + }); + + myDataSource.sendRequest(" + q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22", myCallback); +});

