151 lines
4.5 KiB
Markdown
151 lines
4.5 KiB
Markdown
![]() |
---
|
|||
|
outline: deep
|
|||
|
---
|
|||
|
|
|||
|
# Vben ApiComponent Api组件包装器
|
|||
|
|
|||
|
框架提供的API“包装器”,它一般不独立使用,主要用于包装其它组件,为目标组件提供自动获取远程数据的能力,但仍然保持了目标组件的原始用法。
|
|||
|
|
|||
|
::: info 写在前面
|
|||
|
|
|||
|
我们在各个应用的组件适配器中,使用ApiComponent包装了Select、TreeSelect组件,使得这些组件可以自动获取远程数据并生成选项。其它类似的组件(比如Cascader)如有需要也可以参考示例代码自行进行包装。
|
|||
|
|
|||
|
:::
|
|||
|
|
|||
|
## 基础用法
|
|||
|
|
|||
|
通过 `component` 传入其它组件的定义,并配置相关的其它属性(主要是一些名称映射)。包装组件将通过`api`获取数据(`beforerFetch`、`afterFetch`将分别在`api`运行前、运行后被调用),使用`resultField`从中提取数组,使用`valueField`、`labelField`等来从数据中提取value和label(如果提供了`childrenField`,会将其作为树形结构递归处理每一级数据),之后将处理好的数据通过`optionsPropName`指定的属性传递给目标组件。
|
|||
|
|
|||
|
::: details 包装级联选择器,点击下拉时开始加载远程数据
|
|||
|
|
|||
|
```vue
|
|||
|
<script lang="ts" setup>
|
|||
|
import { ApiComponent } from '@vben/common-ui';
|
|||
|
|
|||
|
import { Cascader } from 'ant-design-vue';
|
|||
|
|
|||
|
const treeData: Record<string, any> = [
|
|||
|
{
|
|||
|
label: '浙江',
|
|||
|
value: 'zhejiang',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'hangzhou',
|
|||
|
label: '杭州',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'xihu',
|
|||
|
label: '西湖',
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'sudi',
|
|||
|
label: '苏堤',
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'jiaxing',
|
|||
|
label: '嘉兴',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'wuzhen',
|
|||
|
label: '乌镇',
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'meihuazhou',
|
|||
|
label: '梅花洲',
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'zhoushan',
|
|||
|
label: '舟山',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'putuoshan',
|
|||
|
label: '普陀山',
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'taohuadao',
|
|||
|
label: '桃花岛',
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
{
|
|||
|
label: '江苏',
|
|||
|
value: 'jiangsu',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'nanjing',
|
|||
|
label: '南京',
|
|||
|
children: [
|
|||
|
{
|
|||
|
value: 'zhonghuamen',
|
|||
|
label: '中华门',
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'zijinshan',
|
|||
|
label: '紫金山',
|
|||
|
},
|
|||
|
{
|
|||
|
value: 'yuhuatai',
|
|||
|
label: '雨花台',
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
],
|
|||
|
},
|
|||
|
];
|
|||
|
/**
|
|||
|
* 模拟请求接口
|
|||
|
*/
|
|||
|
function fetchApi(): Promise<Record<string, any>> {
|
|||
|
return new Promise((resolve) => {
|
|||
|
setTimeout(() => {
|
|||
|
resolve(treeData);
|
|||
|
}, 1000);
|
|||
|
});
|
|||
|
}
|
|||
|
</script>
|
|||
|
<template>
|
|||
|
<ApiComponent
|
|||
|
:api="fetchApi"
|
|||
|
:component="Cascader"
|
|||
|
:immediate="false"
|
|||
|
children-field="children"
|
|||
|
loading-slot="suffixIcon"
|
|||
|
visible-event="onDropdownVisibleChange"
|
|||
|
/>
|
|||
|
</template>
|
|||
|
```
|
|||
|
|
|||
|
:::
|
|||
|
|
|||
|
### Props
|
|||
|
|
|||
|
| 属性名 | 描述 | 类型 | 默认值 |
|
|||
|
| --- | --- | --- | --- |
|
|||
|
| component | 欲包装的组件 | `Component` | - |
|
|||
|
| numberToString | 是否将value从数字转为string | `boolean` | `false` |
|
|||
|
| api | 获取数据的函数 | `(arg?: any) => Promise<OptionsItem[] \| Record<string, any>>` | - |
|
|||
|
| params | 传递给api的参数 | `Record<string, any>` | - |
|
|||
|
| resultField | 从api返回的结果中提取options数组的字段名 | `string` | - |
|
|||
|
| labelField | label字段名 | `string` | `label` |
|
|||
|
| childrenField | 子级数据字段名,需要层级数据的组件可用 | `string` | `` |
|
|||
|
| valueField | value字段名 | `string` | `value` |
|
|||
|
| optionsPropName | 组件接收options数据的属性名称 | `string` | `options` |
|
|||
|
| modelPropName | 组件的双向绑定属性名,默认为modelValue。部分组件可能为value | `string` | `modelValue` |
|
|||
|
| immediate | 是否立即调用api | `boolean` | `true` |
|
|||
|
| alwaysLoad | 每次`visibleEvent`事件发生时都重新请求数据 | `boolean` | `false` |
|
|||
|
| beforeFetch | 在api请求之前的回调函数 | `AnyPromiseFunction<any, any>` | - |
|
|||
|
| afterFetch | 在api请求之后的回调函数 | `AnyPromiseFunction<any, any>` | - |
|
|||
|
| options | 直接传入选项数据,也作为api返回空数据时的后备数据 | `OptionsItem[]` | - |
|
|||
|
| visibleEvent | 触发重新请求数据的事件名 | `string` | - |
|
|||
|
| loadingSlot | 组件的插槽名称,用来显示一个"加载中"的图标 | `string` | - |
|
|||
|
|
|||
|
```
|
|||
|
|
|||
|
```
|