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https://github.com/nocobase/nocobase
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* feat: update docs * feat: update docs * fix: update docs * Add files via upload * Add files via upload * Update the-first-app.md * Update the-first-app.md * Update v08-changelog.md * feat: update docs Co-authored-by: Zhou <zhou.working@gmail.com>
518 lines
12 KiB
Markdown
518 lines
12 KiB
Markdown
# 扩展 Schema 组件
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除了原生的 html 标签，开发也可以适配更多的自定义组件，用于丰富 Schema 组件库。
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扩展组件时，常用的方法：
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- [connect](https://react.formilyjs.org/api/shared/connect) 无侵入接入第三方组件，一般用于适配字段组件，和 [mapProps](https://react.formilyjs.org/api/shared/map-props)[、mapReadPretty](https://react.formilyjs.org/api/shared/map-read-pretty) 搭配使用
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- [observer](https://react.formilyjs.org/api/shared/observer) 当组件内部使用了 observable 对象，而你希望组件响应 observable 对象的变化时
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## 最简单的扩展
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直接将现成的 React 组件注册进来。
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```tsx
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/**
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* defaultShowCode: true
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*/
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import React from 'react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const Hello = () => <h1>Hello, world!</h1>;
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const schema = {
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type: 'void',
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name: 'hello',
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'x-component': 'Hello',
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ Hello }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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## 通过 connect 接入第三方组件
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```tsx
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/**
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* defaultShowCode: true
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*/
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import React from 'react';
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import { Input } from 'antd'
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import { connect, mapProps, mapReadPretty } from '@formily/react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const ReadPretty = (props) => {
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return <div>{props.value}</div>
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};
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const SingleText = connect(
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Input,
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mapProps((props, field) => {
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return {
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...props,
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suffix: '后缀',
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}
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}),
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mapReadPretty(ReadPretty),
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);
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const schema = {
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type: 'object',
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properties: {
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t1: {
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type: 'string',
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default: 'hello t1',
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'x-component': 'SingleText',
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},
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t2: {
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type: 'string',
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default: 'hello t2',
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'x-component': 'SingleText',
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'x-pattern': 'readPretty',
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},
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}
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ SingleText }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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## 使用 observer 响应数据
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```tsx
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/**
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* defaultShowCode: true
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*/
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import React from 'react';
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import { Input } from 'antd';
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import { connect, observer, useForm } from '@formily/react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const SingleText = connect(Input);
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const UsedObserver = observer((props) => {
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const form = useForm();
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return <div>UsedObserver: {form.values.t1}</div>
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});
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const NotUsedObserver = (props) => {
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const form = useForm();
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return <div>NotUsedObserver: {form.values.t1}</div>
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};
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const schema = {
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type: 'object',
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properties: {
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t1: {
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type: 'string',
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'x-component': 'SingleText',
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},
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t2: {
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type: 'string',
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'x-component': 'UsedObserver',
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},
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t3: {
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type: 'string',
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'x-component': 'NotUsedObserver',
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},
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}
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};
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const components = {
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SingleText,
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UsedObserver,
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NotUsedObserver
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};
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export default () => {
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return (
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<SchemaComponentProvider components={components}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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## 嵌套的 Schema
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- `props.children` 嵌套，适用于 void 和 object 类型的 properties，例子见 [void 和 object 类型 schema 的嵌套](#void-和-object-类型-schema-的嵌套)
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- `<RecursionField />` 自定义嵌套，所有类型都适用，例子见 [array 类型 schema 的嵌套](#array-类型-schema-的嵌套)
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注意：
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- 除了 void 和 object 类型以外的 schema 的 `properties` 无法直接通过 `props.children` 渲染，但是可以使用 `<RecursionField />` 解决嵌套问题
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- 仅 void 和 object 类型的 schema 可以与 onlyRenderProperties 使用
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```tsx | pure
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<RecursionField schema={schema} onlyRenderProperties />
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```
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### void 和 object 类型 schema 的嵌套
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直接通过 props.children 就可以适配 properties 节点了
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```tsx
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/**
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* defaultShowCode: true
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*/
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import React from 'react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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// Hello 组件适配了 children，可以嵌套 properties 了
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const Hello = (props) => <h1>Hello, {props.children}!</h1>;
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const World = () => <span>world</span>;
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const schema = {
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type: 'object',
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name: 'hello',
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'x-component': 'Hello',
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properties: {
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world: {
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type: 'string',
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'x-component': 'World',
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},
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},
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ Hello, World }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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各类型 properties 渲染结果对比
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```tsx
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import React from 'react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const Hello = (props) => <h1>Hello, {props.children}!</h1>;
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const World = () => <span>world</span>;
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const schema = {
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type: 'object',
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properties: {
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title1: {
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type: 'void',
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'x-content': 'Void schema，渲染 properties',
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},
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void: {
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type: 'void',
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name: 'hello',
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'x-component': 'Hello',
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properties: {
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world: {
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type: 'void',
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'x-component': 'World',
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},
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},
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},
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title2: {
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type: 'void',
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'x-content': 'Object schema，渲染 properties',
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},
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object: {
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type: 'object',
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name: 'hello',
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'x-component': 'Hello',
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properties: {
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world: {
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type: 'string',
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'x-component': 'World',
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},
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},
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},
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title3: {
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type: 'void',
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'x-content': 'Array schema，不渲染 properties',
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},
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array: {
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type: 'array',
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name: 'hello',
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'x-component': 'Hello',
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properties: {
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world: {
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type: 'string',
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'x-component': 'World',
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},
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},
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},
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title4: {
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type: 'void',
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'x-content': 'String schema，不渲染 properties',
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},
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string: {
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type: 'string',
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name: 'hello',
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'x-component': 'Hello',
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properties: {
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world: {
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type: 'string',
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'x-component': 'World',
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},
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},
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},
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}
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ Hello, World }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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### array 类型 schema 的嵌套
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可以通过 `<RecursionField />` 解决自定义嵌套问题
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#### Array 元素是 string 或 number 时
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```tsx
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import React from 'react';
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import { useFieldSchema, Schema, RecursionField, useField, observer, connect } from '@formily/react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const useValueSchema = () => {
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const schema = useFieldSchema();
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return schema.reduceProperties((buf, s) => {
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if (s['x-component'] === 'Value') {
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return s;
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}
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return buf;
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});
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};
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const ArrayList = observer((props) => {
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const field = useField();
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const schema = useValueSchema();
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return (
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<>
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String Array
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<ul>
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{field.value?.map((item, index) => {
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// 只有一个元素
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return <RecursionField name={index} schema={schema} />
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})}
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</ul>
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</>
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);
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});
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const Value = connect((props) => {
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return <li>value: {props.value}</li>
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});
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const schema = {
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type: 'object',
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properties: {
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strArr: {
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type: 'array',
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default: [1, 2, 3],
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'x-component': 'ArrayList',
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properties: {
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value: {
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type: 'number',
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'x-component': 'Value',
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},
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}
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},
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}
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ ArrayList, Value }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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#### Array 元素是 Object 时
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```tsx
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import React from 'react';
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import { useFieldSchema, Schema, RecursionField, useField, observer, connect } from '@formily/react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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const ArrayList = observer((props) => {
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const field = useField();
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const schema = useFieldSchema();
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// array 类型的 schema 无法 onlyRenderProperties，需要转化为 object 类型
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const objSchema = new Schema({
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type: 'object',
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properties: schema.properties,
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});
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return (
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<ul>
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{field.value?.map((item, index) => {
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// array 元素是 object
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return (
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<RecursionField name={index} schema={objSchema} onlyRenderProperties />
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)
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})}
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</ul>
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);
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});
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const Value = connect((props) => {
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return <li>value: {props.value}</li>
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});
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const schema = {
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type: 'object',
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properties: {
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objArr: {
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type: 'array',
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default: [
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{ value: 't1' },
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{ value: 't2' },
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{ value: 't3' },
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],
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'x-component': 'ArrayList',
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properties: {
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value: {
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type: 'number',
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'x-component': 'Value',
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},
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}
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}
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}
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ ArrayList, Value }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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```
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#### Tree 结构数据
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```tsx
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import { ArrayField } from '@formily/core';
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import { connect, ISchema, observer, RecursionField, useField, useFieldSchema } from '@formily/react';
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import { SchemaComponent, SchemaComponentProvider } from '@nocobase/client';
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import { Table, TableColumnType } from 'antd';
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import React from 'react';
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const ArrayTable = observer((props: any) => {
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const { rowKey } = props;
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const field = useField<ArrayField>();
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const schema = useFieldSchema();
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const columnSchemas = schema.reduceProperties((buf, s) => {
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if (s['x-component'] === 'ArrayTable.Column') {
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buf.push(s);
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}
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return buf;
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}, []);
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const columns = columnSchemas.map((s) => {
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return {
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render: (value, record) => {
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return <RecursionField name={record.__path} schema={s} onlyRenderProperties />;
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},
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} as TableColumnType<any>;
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});
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return <Table rowKey={rowKey} columns={columns} dataSource={field.value} />;
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});
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const Value = connect((props) => {
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return <li>value: {props.value}</li>;
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});
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const schema: ISchema = {
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type: 'object',
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properties: {
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objArr: {
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type: 'array',
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default: [
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{ __path: '0', id: 1, value: 't1' },
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{
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__path: '1',
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id: 2,
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value: 't2',
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children: [
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{
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__path: '1.children.0',
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id: 5,
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value: 't5',
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parentId: 2,
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},
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],
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},
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{
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__path: '2',
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id: 3,
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value: 't3',
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children: [
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{
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__path: '2.children.0',
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id: 4,
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value: 't4',
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parentId: 3,
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children: [
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{
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__path: '2.children.0.children.0',
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id: 6,
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value: 't6',
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parentId: 4,
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},
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{
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__path: '2.children.0.children.1',
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id: 7,
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value: 't7',
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parentId: 4,
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},
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],
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},
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],
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},
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],
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'x-component': 'ArrayTable',
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'x-component-props': {
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rowKey: 'id',
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},
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properties: {
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c1: {
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type: 'void',
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'x-component': 'ArrayTable.Column',
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properties: {
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value: {
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type: 'string',
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'x-component': 'Value',
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},
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},
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},
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},
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},
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},
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};
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export default () => {
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return (
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<SchemaComponentProvider components={{ ArrayTable, Value }}>
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<SchemaComponent schema={schema} />
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</SchemaComponentProvider>
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);
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};
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``` |