选择了 Jquery 的 Vue 2 [英] Vue 2 With Jquery Chosen

问题描述

尝试在 vue 中使用 jquery-chosen，问题是这个插件隐藏了我应用 v-model 的实际选择，所以当我选择一个值时，vue 无法将其识别为选择更改事件，而模型值是未更新.

Trying to use jquery-chosen with vue, the problem is that this plugin hides the actual select that I applied v-model, so when I select a value vue doesn't recognize it as a select change event and model value is not updated.

我看到一些适用于 Vue 1 的解决方案不适用于 Vue 2

I've seen some solution available for Vue 1 that don't work with Vue 2

它显示的是当前值，但不知道如何设置以便模型值发生变化.

It's showing the current value but doesn't know how to set so that model value changes.

http://jsfiddle.net/q21ygz3h/

Vue.directive('chosen', {
 twoWay: true, // note the two-way binding
  bind: function(el, binding, vnode) {

Vue.nextTick(function() {
  $(el).chosen().on('change', function(e, params) {
    alert(el.value);
  }.bind(binding));
});
},
    update: function(el) {
// note that we have to notify chosen about update
// $(el).trigger("chosen:updated");
 }
  });

var vm = new Vue({
 data: {
   cities: ''
 }
 }).$mount("#search-results");

推荐答案

将 jQuery 插件集成到 Vue 2 中的首选方法是将它们包装在一个组件中.以下是您的 Chosen 插件的示例，该插件包含在处理单选和多选的组件中.

The preferred method of integrating jQuery plugins into Vue 2 is to wrap them in a component. Here is an example of your Chosen plugin wrapped in a component that handles both single and multiple selects.

Vue.component("chosen-select",{
  props:{
    value: [String, Array],
    multiple: Boolean
  },
  template:`<select :multiple="multiple"><slot></slot></select>`,
  mounted(){
    $(this.$el)
      .val(this.value)
      .chosen()
      .on("change", e => this.$emit('input', $(this.$el).val()))
  },
  watch:{
    value(val){
       $(this.$el).val(val).trigger('chosen:updated');
    }
  },
  destroyed() {
      $(this.$el).chosen('destroy');
  }
})

这是在模板中的用法示例:

And this is an example of usage in a template:

<chosen-select v-model='cities' multiple>
  <option value="Toronto">Toronto</option>
  <option value="Orleans">Orleans</option>
  <option value="Denver">Denver</option>
</chosen-select>

<chosen-select v-model='cities2'>
  <option value="Toronto">Toronto</option>
  <option value="Orleans">Orleans</option>
  <option value="Denver">Denver</option>
</chosen-select>

Fiddle 用于多选.

原答案

这个组件不能正确处理多选，而是把它留在这里，因为它是被接受的原始答案.

This component doesn't handle multiple selects correctly, but leaving it here because it was the original answer that was accepted.

Vue.component("chosen-select",{
  props:["value"],
  template:`<select class="cs-select" :value="value"><slot></slot></select>`,
  mounted(){
    $(this.$el)
      .chosen()
      .on("change", () => this.$emit('input', $(this.$el).val()))
  }
})

该组件支持 v-model.这样您就可以像这样在模板中使用它:

This component supports v-model. So that you can use it in your template like so:

<chosen-select v-model='cities'>
  <option value="Toronto">Toronto</option>
  <option value="Orleans">Orleans</option>
</chosen-select>

这是你的小提琴更新.

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