Vue MultiSelect -- 如何让用户添加数据列表中不存在的新名称？

Question

我正在使用一个名为 Vue-Multiselect 的 "type and search" 插件，让用户能够在数据库中搜索客户名称。如果该名称存在于 database/drop-down 列表中，则他们可以 select 该名称，它将自动填充字段。

但是，如果名称不存在，我如何才能让用户能够在字段中键入新名称？场景：用户想要添加数据库中不存在的新名称 注意：我确实有一个 ApiService，我将 POST 启用表单提交。

Here's my template code (also available in JSFIDDLE):

<multiselect 
    v-model="customer_last_name" 
    :options="options"
    placeholder="Select an existing customer or type to add a new one"
    :custom-label="customerSelectName"
    label="lastname"
    track-by="uid"
    :close-on-select="true" 
    :clear-on-select="false" 
    :hide-selected="true" 
    :preserve-search="true"  
    id="example"
    @select="onSelect"
  >
  </multiselect>

<!--           <label for="customer_first_name_input">First Name:</label><br>
          <input id="customer_first_name_input" type="text" v-model="customer_first_name" /> -->

Script:

new Vue({
    components: {
    Multiselect: window.VueMultiselect.default
    },
    data: {
    customer_last_name: '',
    customer_first_name: '',
    options: [{"uid":"1","firstname":"John","lastname":"Doe","email":"johndoe@aol.com","phone":null,"c_organization":"ACME","c_title":null}, {"uid":"2","firstname":"Mary","lastname":"Smith","email":"msmith@aol.com","phone":null,"c_organization":"NBA","c_title":"Miss"}]
    },
  methods: {
    customerSelectName (option) {
      return `${option.lastname}, ${option.firstname}`
    },
    onSelect (option, uid) {
        console.log(option, uid)
    }
  }
}).$mount('#app')

Answer 1

vue-multiselect 库允许使用 tags 功能。

你需要添加:taggable="true" @tag="addTag" :multiple="false"

并添加一个 addTag 方法：

addTag (newTag) {
  const parts = newTag.split(', ');

  const tag = {
    uid: this.options.length + 1,
    firstname: parts.pop(),
    lastname: parts.pop()
  };
  this.options.push(tag);
  this.customer_last_name = tag;
}

这只是一个示例方法，可以将输入 Chavez, Martha 转换为：

{
  "uid": 3,
  "firstname": "Martha",
  "lastname": "Chavez"
}

您可能想要更新该功能以更好地满足您的需求

jsfiddle: https://jsfiddle.net/dapo/nwvpd4m2/

Vue MultiSelect -- 如何让用户添加数据列表中不存在的新名称？

Vue MultiSelect -- how to let user add new name that doesn't exist in the data list?

vuejs2

vue-multiselect