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form-render-next

v1.6.0-beta-1

Published

通过 JSON Schema 生成标准 Form,常用于自定义搭建配置界面生成,适配next.js

Downloads

7

Readme

form-render-next

form-render for next.js 仅做了一些转化必要的容错处理, 不定期跟随 form-render 版本更新

使用


import FormRender,{useForm} from 'form-render-next'


export function Demo(){

   const form = useForm();

  return (<FormRender
                form={form}
                schema={schema.schema}
            />)

}

配置 next.config.js

const withTM = require('next-transpile-modules')
const withPlugins = require('next-compose-plugins');

module.exports = withPlugins([

  withTM([        
          'lodash-es'
  ]),
],
  {
            reactStrictMode: true,
  }
);

一站式中后台表单解决方案

官网

https://x-render.gitee.io/form-render

FormRender 1.0 是下一代的 React.js 表单解决方案。项目从内核级别进行了重写,为了能切实承接日益复杂的表单场景需求。我们的目标是以强大的扩展能力对表单场景 100%的覆盖支持,同时保持开发者能快速上手,并以表单编辑器、插件、自定义组件等一系列周边产品带来极致的开发体验。在开发 1.0 的道路上,我们做了一系列的取舍,详见0.x - 1.0 迁移文档

安装

FormRender 依赖 ant design,单独使用不要忘记同时安装 antd

npm i form-render --save

使用

最简使用 demo:

import React from 'react';
import { Button } from 'antd';
import FormRender, { connectForm } from 'form-render';

const schema = {
  type: 'object',
  properties: {
    input1: {
      title: '简单输入框',
      type: 'string',
      required: true,
    },
    select1: {
      title: '单选',
      type: 'string',
      enum: ['a', 'b', 'c'],
      enumNames: ['早', '中', '晚'],
    },
  },
};

class Demo extends React.Component {
  render() {
    const { form } = this.props;
    return (
      <div>
        <FormRender form={form} schema={schema} />
        <Button type="primary" onClick={form.submit}>
          提交
        </Button>
      </div>
    );
  }
}

export default connectForm(Demo);

对于函数组件,FormRender 提供了 useForm hooks, 书写更为灵活

import React from 'react';
import { Button } from 'antd';
import FormRender, { useForm } from 'form-render';

const schema = {
  type: 'object',
  properties: {
    input1: {
      title: '简单输入框',
      type: 'string',
      required: true,
    },
    select1: {
      title: '单选',
      type: 'string',
      enum: ['a', 'b', 'c'],
      enumNames: ['早', '中', '晚'],
    },
  },
};

const Demo = () => {
  const form = useForm();
  return (
    <div>
      <FormRender form={form} schema={schema} />
      <Button type="primary" onClick={form.submit}>
        提交
      </Button>
    </div>
  );
};

export default Demo;

从 demo 中我们不难发现 FormRender 的一些设计:

  1. 以 schema 来描述表单展示,提交方式与 antd v4 的方式类似
  2. schema 以国际标准的 JSON schema 为基础,同时能够方便使用任何 antd 的 props
  3. 通过 bind 字段,我们允许数据的双向绑定,数据展示和真实提交的数据可以根据开发需求不同(例如从服务端接口拿到不规则数据时,也能直接使用)
  4. 可以通过displayType,labelWidth等字段轻易修改展示

组件 Props

import Form, { useForm, connectForm } from 'form-render';

<Form /> (常用 props)

| 参数 | 描述 | 类型 | 是否必填 | 默认值 | | ------------ | ------------------------------------------------------------------------------ | ----------------------------------------------------------------- | -------- | -------- | | schema | 描述表单的 schema,详见 | object | 是 | | | form | useForm创建的表单实例,与 Form 一对一绑定 | FormInstance | 是 | | | onFinish | 提交后的回调,执行 form.submit() 后触发 | (formData, errorFields: Error[]) => void | 否 | () => {} | | beforeFinish | 在 onFinish 前触发,一般用于外部校验逻辑的回填,入参是个对象,便于扩展 | ({ data, errors, schema, ...rest }) => Error[]|Promise<Error[]> | 否 | () => {} | | displayType | 表单元素与 label 同行 or 分两行展示, inline 则整个展示自然顺排 | string('column' / 'row' / 'inline') | 否 | 'column' | | widgets | 自定义组件,当内置组件无法满足时使用 | object | 否 | {} | | watch | 类似于 vue 的 watch 的用法,详见表单监听 & 回调 | object | 否 | {} |

注 1:

<Form /> (不常用 props)

| 参数 | 描述 | 类型 | 默认值 | | ---------------- | ---------------------------------------------------------------- | ------------------- | ------ | | column | 一行展示多少列 | number | 1 | | mapping | schema 与组件的映射关系表,当内置的表不满足时使用 | object | {} | | debug | 开启 debug 模式,时时显示表单内部状态 | boolean | false | | debugCss | 用于 css 问题的调整,显示 css 布局提示线 | boolean | false | | locale | 展示语言,目前只支持中文、英文 | string('cn'/'en') | 'cn' | | configProvider | antd 的 configProvider,配置透传 | object | - | | debounceInput | 是否开启输入时使用快照模式。仅建议在表单巨大且表达式非常多时开启 | boolean | false | | validateMessages | 修改默认的校验提示信息。详见下 | object | {} |

validateMessages

Form 为验证提供了默认的错误提示信息,你可以通过配置 validateMessages 属性,修改对应的提示模板。一种常见的使用方式,是配置国际化提示信息:

const validateMessages = {
  required: '${title}是必选字段',
  // ...
};

<Form validateMessages={validateMessages} />;

目前可以用的转义字段为 ${title}/${min}/${max}/${len}/${pattern}, 如果有更多需求请提 issue

useForm / connectForm

useForm / connectForm 用于创建表单实例,所有对表单的外部操作和回调函数全挂在其生产的实例上,例如表单提交是 form.submit。注意 useForm 是 hooks,而 connectForm 是高阶组件,所以前者只能在函数组件使用,后者可用于 class 组件。两者无其他区别。使用时需要创建实例,并通过 props 挂钩到与其对应的表单上:

import Form, { useForm } from 'form-render';

const Demo = () => {
  const form = useForm();
  return <Form form={form} schema={...} />;
};
import Form, { connectForm } from 'form-render';

const Demo = ({ form }) => {
  return <Form form={form} schema={...} />;
};

export default connectForm(Demo);

form 方法

| 参数 | 描述 | 类型 | | ---------------- | --------------------------------------------------- | ------------------------------------ | | submit | 触发提交流程,一般在提交按钮上使用 | () => void | | resetFields | 清空表单(也会清空一些内置状态,例如校验) | () => void | | errorFields | 表单校验错误的数组 | array,[{name, error: []}] | | setErrorFields | 外部手动修改 errorFields 校验信息,用于外部校验回填 | (error: Error | Error[]) => void | | setValues | 外部手动修改 formData,用于已填写的表单的数据回填 | (formData: any) => void | | onItemChange | 外部修改指定单个 field 的数据 | (path: string, value: any) => void | | getValues | 获取表单内部维护的数据 formData | () => void | | schema | 表单的 schema | object | | touchedKeys | 已经触碰过的 field 的数据路径 | string[] | | removeErrorField | 外部手动删除某一个 path 下所有的校验信息 | (path: string) => void | | formData | 表单内部维护的数据,建议使用 getValues/setValues | object |