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react-cnf-form

v0.1.8

Published

React configuration form

Downloads

3

Readme

react-cnf-form

react-cnf-form组件是在 antd form组件的基础上封装; 其目的是为了通过配置化实现form表单功能,简化form表单页的实现 让业务能够方便的拆分为各种组件。实现业务功能的解耦;方便其维护;

简单示例

// options.js 配置项文件
export default [{
    hidden: true,
    name: 'id',
}, {
    // itemType: 'input',   // 默认类型为'input'可以省略;
    name: 'account',
    label: 'account',
    itemProps: {    // 如果不需要 对组件传入参数,该项也可以省略
    }
},
function (render) { // 一般在需要动态获取配置项数据时使用函数渲染
    return render([
        {
            itemType: 'password',
            label: 'password',
            name: 'password',
            required: true,
            rules: [{ required: true, message: 'Please input your password!' }],
            itemProps: {
                maxLength: 20
            }
        }
    ]);
}];
// 在组件中使用 react-cnf-form 
import CnfForm from 'react-cnf-form';
import {Form, Button} from 'antd';
import items from './options';

export function Form() {
    const [formIns] = Form.useForm();
  
    function onFinish(values) {
        // TODO: process values;
    }
    return (
        <CnfForm form={formIns} items={items} onFinish={onFinish}>
            <section className="mt-10 btn-group-container">
                <Button htmlType="submit" type="primary">
                    submit
                </Button>
            </section>
        </CnfForm>    
    );
}

说明

主要思想:

  1. 不影响ant组件功能的所有配置,只提供配置化渲染功能

  2. 增加几个额外必要的配置项来处理结构问题;以下是每条配置项中增加的配置项说明:
    itemType 指定组件类型
    itemRender 一般用来定义不能复用功能的组件(模块),提供该配置,itemType 会忽略;
    beforeContent 用来渲染组件之前的内容
    afterContent 用来渲染组件之后的内容
    itemProps 配置 itemType 指定组件的配置项

  3. 通过提供一个Wrap组件来实现表单项目的分块

interface WrapOption {
    Wrap: ComponentType;
    items: ItemOptions;
    key?: any;
}
  1. CnfForm 组件支持所有antd From组件的配置
export interface CnfFromProps extends FormProps {
    form: FormInstance;
    items: ItemOptions;
}

由于form实例(FormInstance)在表单项中可能会经常遇到这里设置为了必选项;

  1. ItemOption 配置项支持3中类型:对象、渲染函数、WrapOption
type ItemOption = (Option | RenderFn | WrapOption);

type Render = (args: ItemOption | ItemOptions, fIns: FormInstance) => ReactNode[];
type RenderFn = (render: Render, fIns: FormInstance) => ReactNode[];

对象 Option 支持所有antd From.Item 的配置项 渲染函数RenderFn 一般用于需要动态控制配置项的使用使用; WrapOption 对于复杂的表单经常需要分区块展示,这里提供了一个包裹组件配置来实现这种功能

  1. 有些常用组件(文件上传预览模块等)可以通过addItemType添加到组件库
addItemType = (itemTypeName: string, CMP: ComponentType) => undefined;
import {FC} from 'react';
import {addItemType} from 'react-cnf-form';
import {Select} from 'antd';

const CSelect: FC = (props) => <Select {...props} />;

addItemType('customizeSelect', CSelect);
// options.js

[...,
{
    itemType: 'customizeSelect',
    label: 'customizeCMP',
    name: 'customize'
},...]

FAQ

  1. 支持哪些组件?

    Input: (itemType: 'input')可以不用填,默认就是'input'
    InputNumber: (itemType: 'inputNumber')
    Input.TextArea: (itemType: 'textarea')
    Input.Password: (itemType: 'password')
    Cascader: (itemType: 'cascader')
    Checkbox: (itemType: 'checkbox')
    Checkbox.Group: (itemType: 'checkboxGroup')
    Radio: (itemType: 'radio')
    Radio.Group: (itemType: 'radioGroup')
    Rate: (itemType: 'rate')
    Switch: (itemType: 'switch')
    DatePicker: (itemType: 'datePicker')
    DatePicker.RangePicker: (itemType: 'rangePicker')
    TimePicker: (itemType: 'timePicker')
    Select: (itemType: 'select')
    TreeSelect: (itemType: 'treeSelect')
    Tree: (itemType: 'tree')
    Mentions: (itemType: 'mentions')
    Transfer: (itemType: 'transfer')
    Upload: (itemType: 'upload')

  2. 隐藏字段怎么配置?
    支持隐藏字段(Form.Item 本身就支持隐藏字段),配置如下:
    { hidden: true, name: 'id' }

  3. 无边框展示字段,如果不想自定义一个特别的组件可以使用无边框Input:
    支持展示字段(Input 字段可以设置无边框样式),配置如下:
    { name: 'description', itemProps: { disabled: true, bordered: false } }

  4. 如何动态增加一个自定义的组件?
    参加上面说明中的第6条
    注意,如果你需要自定义组件,那么你需要遵守ant-form 自定义Form.Item组件的规范,详细参考antd 的文档

其它关于antd Form.Item 的说明

有些字段其值并不是通过value 获取,如:Switch组件 可以通过Form.ItemvaluePropName来指定;
Form.Item 内的组件如果不是只有一个children ,则需要指定单独的
<Form.Item nostyle ><Input /></Form.Item>包裹;
在当前Form组件内部已经处理;但是如果配置项中使用itemRender 或者其它自定义的 Item项,需要接收value值并正确处理其值的改变;