如何使$（this）在JQueryUI自动完成中工作

Question

Here is a fiddle example

I have trouble getting the $(this) to work in the source function with jQueryUI autocomplete. The console shows that the search input isn't able to get its data attribute 'name' before sending out an Ajax request. Is there any way to pass the variable "name" to data ?

$('.input').autocomplete({
    source: function (request, response) {
        var name = $(this).data('name');
        console.log(name);
        $.ajax({
            url: url,
            dataType: "json",
            data: {
                'q': request.term,
                'field': name
            },
            success: function (data) {
                response($.map(data.query.results.json.json, function (item) {
                    return {
                        label: item.name,
                    }
                }));
            }
        });
    },
    minLength: 2,
    select: function (event, ui) {
        $(this).val(ui.item.label);
        $(this).val(ui.item.label);
    },
    open: function () {
        $(this).autocomplete("widget").width(400)
    }
});

Answer 1

You should use this.element to access corresponding input element. this points to the autocomplete instance itself:

var name = $(this.element).data('name');