javascript - 如何加载 JSON 数据以与 select2 插件一起使用

Question

我想为我的项目使用 select2 插件。我关注了 this 示例，但它对我不起作用。

JSON 输出:

[
    {"ime":"BioPlex TM"},
    {"ime":"Aegis sym agrilla"},
    {"ime":"Aegis sym irriga"},
    {"ime":"Aegis sym microgranulo"},
    {"ime":"Aegis sym pastiglia"},
    {"ime":"Agroblen 15816+3MgO"},
    {"ime":"Agroblen 18816+3MgO"},
    {"ime":"Agrobor 15 HU"},
    {"ime":"Agrocal (Ca + Mg)"},
    {"ime":"Agrocal (Ca)"},
    {"ime":"Agrogold"},
    {"ime":"Agroleaf Power 12525+ME"},
    {"ime":"Agroleaf Power 151031+ME"},
    {"ime":"Agroleaf Power 202020+ME"},
    {"ime":"Agroleaf Power 311111+ME"},
    {"ime":"Agroleaf Power Ca"},
    {"ime":"Agrolution 14714+14 CaO+ME"},
    {"ime":"Agrovapno dolomitno"},
    {"ime":"Agrovit HSF"},
    {"ime":"Agrovit P"},
    {"ime":"Agrozin 32 T"},
    {"ime":"Albatros Hydro"},
    {"ime":"Albatros Sprint"},
    {"ime":"Albatros Standard"},
    {"ime":"Albatros Universal"},
    {"ime":"Algaren"},
    {"ime":"AlgoVital ? Plus"},
    {"ime":"Amalgerol PREMIUM"},
    {"ime":"Amcolon \/ Novalon"},
    {"ime":"Amcopaste"},
    {"ime":"Aminosprint N8"},
    {"ime":"AminoVital"},
    {"ime":"Ammonium nitrate 33.5%"},
    {"ime":"Ammonium nitrate with calcium sulfate"},
    {"ime":"Ammonium sulfate"}
]

脚本:

function formatDjubrivo(data) {
    return data;
}
function formatDjubrivo1(data) {
    return data.ime;

$( "#inputs" ).change(function() {
    console.log('prolazi klik');
    var t = $( this ).val();
    console.log(t);
    if (t=='djubrivo') {
       console.log('prolazi klik if');
       $('#stavka').select2({
          ajax: {
             dataType : "json",
             url      : "djubrivo.php",
             results  : function (data) {
                 return {results: data};
             }
          },
          formatResult : formatDjubrivo
       });
    }else {
       console.log('nije djubrivo');
    }
});

HTML:

<div class="col-md-2" style="padding-right:0px;">
    Vrsta Inputa
    <select id="inputs" name="inputs" class="form-control js-example-responsive">
        <option value="djubrivo">djubrivo</option>
        <option value="pesticidi">pesticidi</option>
        <option value="kultura">kultura</option>
        <option value="voda">voda</option>
    </select>
</div>

<div class="col-md-2" style="padding-right:0px;">
    Stavka
    <input id="stavka" name="stavka" class="form-control js-example-responsive">
</div>

这是我使用 console.log 测试我的代码时的结果:

Select2: The AJAX results did not return an array in the results key of the response.

我哪里弄错了？

Answer 1

从您提供的示例链接和您收到的错误消息看来，您正在使用 Select2 4.0。但是，您的代码是为以前版本的 Select2 编写的。

如果想继续使用Select2 4.0:

(1) 改变results processResults 的 ajax 选项.

(2) 改变processResults功能所以results它返回的对象的属性是一个对象数组，其中每个对象都有一个 id。和一个 text属性(property)。一种方法是使用 $.map() 函数从 ajax 调用返回的数组创建一个新数组。

processResults: function (data) {
    return {
        results: $.map(data, function(obj) {
            return { id: obj.ime, text: obj.ime };
        })
    };
}

你也可以去掉 formatResult选项。

(3) 使用 <select>元素，而不是 <input>元素。

<select id="stavka" name="stavka" class="form-control js-example-responsive"></select>

jsfiddle