Twitter的提前输入示例/动态查询 [英] Twitter's typeahead example / dynamic query

问题描述

我正在搜索 twitter的提前输入的示例.

我想通过函数获取数据，我应该使用远程功能吗? 服务器数据返回的将是Json(不仅仅是数组). 从那些我只想显示字段例如name.

I want to get the data with a function, should I use remote? The returned from the server data would be a Json (not simply an array). From those I want to display only the field e.g. name.

选择正确的name后，我想运行另一个功能，例如提醒该对象的id和description(字段).可能使用 typeahead:autocompleted 事件绑定器?

Upon selection of the correct name I want to run another function that e.g. alerts the id and the description (fields) of that object. Probably with typeahead:autocompleted event binder ?

更新/示例:

下面的Dajaxice.async.get_closest_events()将3个参数发送到内部服务器(lat，lng，query).查询是用户编写的值.它返回一个数组(venuesNames)，该数组将显示在下拉列表中.

The Dajaxice.async.get_closest_events() bellow sends 3 parameters to the internal server (lat,lng, query). Query is the value the users has written. It returns an array (venuesNames) which is going to be displayed in the dropdown.

$( "#locationQueryInput" ).typeahead({
    remote:{
        replace: function (query ) {
            //alert($("locationQueryInput").val());
            Dajaxice.async.get_closest_events( 
                (function(data){                                            
                    venuesNames = []
                    venuesDetails = []
                    for (var i = 0; i < data.fVenues.length; i++) {
                        venuesNames.push(data.fVenues[i].name)
                        venuesDetails[ data.fVenues[i].name ] = {
                                                'id' : data.fVenues[i].id,
                                                'lat' : data.fVenues[i].lat,
                                                'lng' : data.fVenues[i].lng,
                                                'address' :data.fVenues[i].address,
                                                'city' :data.fVenues[i].city,
                        }
                    }
                    return venuesNames
                }), 
                {'lat' : new_marker_latlng.lat, 'lng' : new_marker_latlng.lng, 'query' : query }  
            );
        }


    }

}).bind('typeahead:selected', function(obj,datum){
// do stuff upon completion
...
}

推荐答案

以下是使用json响应的一个很好的例子:

Here's a good example of using a json response: How to render JSON response using latest typeahead.js library.

然后为了绑定事件，您可以将上述建议与类似的内容组合在一起:

And then to bind the event, you'd combine the above suggestion with something like:

$('.selector').typeahead({
    // base this part on example link given above...
}).bind('typeahead:autocompleted', function (obj, datum) {
    console.log(datum);  // datum will contain the value that was autocompleted
});

更新1: 关于查询参数，您的函数调用编写不正确.根据文档:

Update 1: Regarding the query parameter, your function call is written incorrectly. According to the docs:

replace –具有签名replace(url，uriEncodedQuery)的函数 可以用来覆盖请求网址.预期返回 有效的网址.如果设置，则不会在网址上执行通配符替换.

replace – A function with the signature replace(url, uriEncodedQuery) that can be used to override the request URL. Expected to return a valid URL. If set, no wildcard substitution will be performed on url.

因此，您需要将URL作为第一个参数，并将查询字符串作为第二个参数:

So you need to pass the URL as the first parameter, and the query string as the second:

remote:{
    replace: function (url, query ) {
    }
}

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