我是 YUI3 的新手；我试图每 10 秒轮询一次数据源以刷新数据表。但是在下面的代码中，它说“没有要显示的数据”......对不起大量的代码......
YUI().use("datatable", "datasource-get", "datasource-jsonschema", "datatable-datasource", "datasource-polling", "datasource-function", function (Y) {
var url = "http://query.yahooapis.com/v1/public/yql?format=json" +
"&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys",
query = "&q=" + encodeURIComponent(
'select * from local.search ' +
'where zip = "94089" and query = "pizza"'),
dataSource,
table;
dataSource = new Y.DataSource.Get({ source: url });
dataSource.plug(Y.Plugin.DataSourceJSONSchema, {
schema: {
resultListLocator: "query.results.Result",
resultFields: [
"Title",
"Phone",
{
key: "Rating",
locator: "Rating.AverageRating",
parser: function (val) {
// YQL is returning "NaN" for unrated restaurants
return isNaN(val) ? -1 : +val;
}
}
]
}
});
intervalId = dataSource.setInterval(10000, {
request : query,
callback: {
success: function (e) {
table.datasource.load(e.response);
},
failure: function (e) {
}
}
});
table = new Y.DataTable({
columns: [
"Title",
"Phone",
{
key: "Rating",
formatter: function (o) {
if (o.value === -1) {
o.value = '(none)';
}
}
}
],
summary: "Pizza places near 98089",
caption: "Table with JSON data from YQL"
});
table.plug(Y.Plugin.DataTableDataSource, { datasource: dataSource });
// This line works (but it doesnt poll)
//table.datasource.load({ request: query });
table.render("#pizza");
});
我不确定的线是...
success: function (e) {
table.datasource.load(e.response);
},