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schemant-form

v1.1.9

Published

一个基于 antd 的 schema form 方案,主要用于满足业务场景中**用户需要自定义表单**的需求,通过本方案可以快速上线 schema form 给用户定制使用。

Downloads

1,287

Readme

schemant-form

一个基于 antd 的 schema form 方案,主要用于满足业务场景中用户需要自定义表单的需求,通过本方案可以快速上线 schema form 给用户定制使用。

本方案的特点是仅定义了单个控件的 schema,因此具有完全灵活的布局自定义能力。此外框架本身也内置了一组开箱即用的布局和自定义控件,用于简单需求的快速上线。

如果内置套件不满足要求,还可以通过框架提供的 util 快速定制布局和控件。

安装

$ npm install schemant-form --save

使用示例

import React from 'react';
import { SchemaForm } from 'schemant-form';

const schema = [
  {
    name: '节点属性',
    controls: [
      {
        shape: 'Input',
        name: 'id',
        label: '节点 ID',
        defaultValue: '',
        value: 123,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'Input',
        name: 'name',
        label: '节点名称',
        defaultValue: '',
        value: 123,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'InputNumber',
        name: 'x',
        label: '位置: x',
        defaultValue: '',
        value: 123,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'InputNumber',
        name: 'y',
        label: '位置: y',
        defaultValue: '',
        value: 123,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'InputNumber',
        name: 'width',
        label: '大小: 宽度',
        defaultValue: '',
        value: 180,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'InputNumber',
        name: 'height',
        label: '大小: 高度',
        defaultValue: '',
        value: 30,
        disabled: true,
        required: false,
        hidden: false,
      },
      {
        shape: 'Datetime',
        name: 'modifiedTime',
        label: '修改时间',
        defaultValue: '',
        value: '',
        disabled: true,
        required: false,
        hidden: false,
      },
    ],
  },
  {
    name: '节点配置',
    controls: [
      {
        shape: 'Input',
        name: 'param',
        label: '节点参数',
        defaultValue: '',
        value: '',
        disabled: false,
        required: false,
        hidden: false,
      },
    ],
  },
];

export default () => (
  <div style={{ width: 300, minHeight: 500, border: '1px solid #d9d9d9' }}>
    <SchemaForm schema={schema} onFieldsChange={console.log} />
  </div>
);

API

SchemaForm

除增加了 schema 属性外,其它属性完全与 antd 的 Form 保持一致。

默认内置的控件

  • Input
  • Checkbox
  • Select
  • InputNumber
  • Password
  • Datetime
  • Textarea

单个控件的 schema

interface ControlSchema {
  shape: string; // 控件类型
  name: string | number | (string | number)[]; // 控件名称
  label: string; // 控件标签
  defaultValue: string | number | boolean; // 默认值
  value: string | number | boolean; // 当前值
  disabled: boolean; // 是否禁用
  required: boolean; // 是否必填
  tooltip?: string; // 辅助说明
  extra?: string; // 固定帮助文案
  placeholder?: string; // placeholder
  hidden: boolean; // 是否隐藏
  options?: TOption[]; // 一般用于 select 组件的可选项
  originData?: Record<string, any>; // 原始数据,可透传到控件
  dependencies?: TDependency[]; // 依赖的字段
}

自定义控件并注册

  1. 以 Select 控件为例,自定义控件:
// src/components/schemant/select
import React from 'react';
import { Form, Select as ASelect } from 'antd';
import 'antd/es/select/style';
import {
  ControlSchema,
  FormItemWrapper,
  renderFormItemExtra,
} from 'schemant-form';

interface Props {
  controlSchema: ControlSchema;
}

export const Select: React.FC<Props> = props => {
  const { controlSchema } = props;
  const {
    required,
    tooltip,
    extra,
    name,
    label,
    placeholder,
    options = [],
  } = controlSchema;

  return (
    <FormItemWrapper schema={controlSchema}>
      {({ hidden, disabled, initialValue }) => {
        return (
          <Form.Item
            name={name}
            label={label}
            initialValue={initialValue}
            tooltip={tooltip}
            extra={renderFormItemExtra(extra)}
            required={required}
            hidden={hidden}
          >
            <ASelect disabled={disabled} placeholder={placeholder}>
              {options.map(option => {
                const { title, value } = option;
                return (
                  <ASelect.Option key={value.toString()} value={value as any}>
                    {title}
                  </ASelect.Option>
                );
              })}
            </ASelect>
          </Form.Item>
        );
      }}
    </FormItemWrapper>
  );
};
  1. 在应用的入口注册刚才的控件
// src/app.tsx
import { ControlMap } from 'schemant-form';
import { Select } from '@/components/schemant/select';

ControlMap.setComponent('select', Select);
  1. 之后即可在业务代码里使用上方注册的组件

自定义布局

如果默认的布局不符合需求,可以只使用 schemant-form 的控件联动和注册能力,Form 渲染层完全自定义。

具体的方式为:

  1. 自定义 schema,解析后使用 ControlMap 获取控件,得到自定义的 Form 组件,内部布局可随意定制,以下代码仅做演示:
import React from 'react';
import { Form } from 'antd';
import { FormInstance, FormProps } from 'antd/es/form';
import { ControlSchema, ControlMap } from 'schemant-form';
import 'antd/es/form/style';

type Schema = ControlSchema[];

interface Props extends FormProps {
  schema: Schema;
  form?: FormInstance;
}

export const CustomForm: React.FC<Props> = props => {
  const { schema, form: formInstance, ...others } = props;
  const [form] = Form.useForm(formInstance);

  return (
    <Form {...others}>
      {schema.map(controlSchema => {
        const { name, shape } = controlSchema;
        const ControlComponent = ControlMap.getComponent(shape);
        if (!ControlComponent) {
          console.error('未找到对应的控件:', shape);
          return null;
        }
        return (
          <ControlComponent
            key={name.toString()}
            controlSchema={controlSchema}
          />
        );
      })}
    </Form>
  );
};
  1. 利用 schemant-form 的 FormItemWrapper util 定义自定义控件,即可快速获得具有联动能力的控件,如上方的自定义控件注册步骤