Vue 3 select 组件如何将 2 个属性绑定到 2 个 v-model

Question

所以假设我有一个数据 - news: {id:3, name:"book", author:'author'}。 select 和 options: {id: 1, book: "book1"}, {id: 2, book: "book2"} .

现在我想用 news.id 和 news.book v-bind 选项有没有办法做到这一点或为此准备好的组件？

Answer 1

<select v-model="selected">
  <option v-for="option in options" :value="option.id">
    {{ option.name}}
  </option>
</select>

  data() {
    return {
      selected: 1,
      options: [
        { name: 'book1', id: 1 },
        { name: 'book2', id: 2 },
        { name: 'book3', id: 3 }
      ]
    }

Answer 2

所以最后我做了这个：

<select1
    :selected="{ id: book.id, name: book.name }"
    v-model:id="book.id"
    v-model:name="book.name"
    urldata="url/to/get/options"
></select1>

我的组件是这样的：

<template>
  <div>
    <select v-model="selected" @change="change" class="form-select">
      <option v-for="option in options" :value="option">
        {{ option.name }}
      </option>
    </select>
  </div>
</template>

export default {
  name: "select1",
  emits: ["update:selected", "update:id", "update:name"],
  props: {
    selected: Object,
    urldata: String,
  },
  data: function () {
    return {
      options: [],
    };
  },
  mounted() {
    this.GetListData();
  },
  methods: {
    GetListData() {
      if (this.urldata !== "") {
        axios
          .get(`${this.urldata}`)
          .then((response) => (this.options = response.data.results));
      }
    },
    change(event) {
      console.log(this.selected);

      this.$emit("update:selected", this.selected);
      this.$emit("update:id", this.selected.id);
      this.$emit("update:name", this.selected.name);
    },
  },
};

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