React / Antd:基于JSON响应的动态表单字段

时间:2019-04-02 15:29:48

标签: reactjs forms parent-child dynamically-generated antd

我正在尝试创建一种基于JSON响应动态映射字段的表单。

我目前有一个虚拟对象,我将其设置为状态,但是最后阶段将接收来自外部API调用的数据。数据集可能会随时间变化,并根据业务需求添加或删除键/值。作为替代,我需要创建一个智能组件,该组件需要一组初始数据并为对象中的每个键/值对映射一个“只读”字段。

第二个问题是实际的表单布局。我在下面有一个初始脚手架,并且只对列和行进行了硬编码。如何实现从数据响应中创建两列行的逻辑?

对此有任何想法/帮助,深表感谢!

代码:

import React, { Component } from 'react';
import { render } from 'react-dom';
import { Form, Button, Input, Row, Col } from 'antd';
import "antd/dist/antd.css";
import './style.css';

class OpportunityDetails extends Component {
constructor() {
      super();
    this.state = {
      disabled: true,
      formLayout: 'horizontal',
      opportunityDetails: [
          {
              CustomerName: "",
              Field2: "Some data",
              Field3: "Some data",
              Field4: "Some data",
              Field5: "Some data",
              Field6: "Some data",
              Field7: "Some data",
              Field8: "Some data",
              Field9: "Some data",
              Field10: "Some data",
              Field11: "Some data",
              Field12: "Some data",
              Field13: "Some data",
              Field14: "Some data",
              Field15: "Some data"
          }
      ]
    };
    this.toggleSwitch = this.toggleSwitch.bind(this)
}

  toggleSwitch() {
    this.setState(previousState => ({
      disabled: !previousState.disabled,
      enabled: previousState.disabled
    }))
  }

  modifyRoute(){
    alert("Sending you to the modify floor");
  }

  uploadRoute(){
    alert("Sending you to the upload sector!")
  }

  render() {
    const { disabled } = this.state;
    const { enabled } = this.state;


    return (
      <div className={}>

 /// Button Group
      <Row type="flex" justify="space-around">
        <Col span={4}>
          <Button disabled={disabled} onClick={this.modifyRoute}>Modify Docs</Button>
        </Col>
        <Col span={4}>
          <Button disabled={disabled} onClick={this.uploadRoute}>Upload Docs</Button>
        </Col>
        <Col span={4}>
          <Button disabled={enabled} onClick={this.toggleSwitch}>
            Unlock Quote
          </Button>
        </Col>
      </Row>

/// Form section with columns and rows for all key/value pairs
      <Row type="flex" justify="space-around">
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder="{value} />
        </Form.Item>
      </Col>
      </Row>
      <Row type="flex" justify="space-around">
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      </Row>
            <Row type="flex" justify="space-around">
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      </Row>
      <Row type="flex" justify="space-around">
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      <Col span={10}>
        <Form.Item label={key}>
          <Input placeholder={value} />
        </Form.Item>
      </Col>
      </Row>

      </div>
    );
  }
}

render(<OpportunityDetails />, document.getElementById('root'));

2 个答案:

答案 0 :(得分:1)

认真对待阿米尔的评论。然后,您可能会重组数据,这样会更方便(更易读):

我不知道为什么opportunityDetails必须是数组,无论如何我都对此进行了调整。尽管它会增加您所看到的复杂性

1。)这就是您希望数据看起来像的样子(稍后您将了解原因):

/*[
   { itemKey: "CustomerName", itemValue: "" },
   { itemKey: "Field2", itemValue: "Some data" }
   .... and so on
]*/


opportunityDetails: [
  {
    CustomerName: "",
    Field2: "Some data",
    Field3: "Some data",
    Field4: "Some data",
    Field5: "Some data",
    Field6: "Some data",
    Field7: "Some data",
    Field8: "Some data",
    Field9: "Some data",
    Field10: "Some data",
    Field11: "Some data",
    Field12: "Some data",
    Field13: "Some data",
    Field14: "Some data",
    Field15: "Some data"
  }
].map(obj => {
  const objKeys = Object.keys(obj);
  return objKeys.map(itemKey => {
    return {
      itemKey,
      itemValue: obj[itemKey]
    };
  });
})

以下以下步骤和模式是JSX(或反应)特定的;我要说的是,这是在反应中呈现array of JSX elements的最常见方式:

2。)创建一个将返回 JSX数组的方法,我使用了.map,因为.forEach无法正常工作(您可能要自己搜索原因)。

renderDynamicElWrapper() {
  return this.state.opportunityDetails.map(items => {
    return (
      <Row type="flex" justify="space-around">
        {this.renderDynamicEl(items)}
      </Row>
    );
  });
 }

假设机会详细信息将包含1个以上的项目,我们需要采用与上述方法类似的另一种方法和迭代方法

  renderDynamicEl(els) {
    return els.map(el => {
      return (
        <Col span={10}>
          <Form.Item label={el.itemKey}>
            <Input placeholder={el.itemValue} />
          </Form.Item>
        </Col>
      );
    });
  }

3。)最后,下面是您的render方法的返回结果:

return (
      <div>
        <Row type="flex" justify="space-around">
          <Col span={4}>
            <Button disabled={disabled} onClick={this.modifyRoute}>
              Modify Docs
            </Button>
          </Col>
          <Col span={4}>
            <Button disabled={disabled} onClick={this.uploadRoute}>
              Upload Docs
            </Button>
          </Col>
          <Col span={4}>
            <Button disabled={enabled} onClick={this.toggleSwitch}>
              Unlock Quote
            </Button>
          </Col>
        </Row>
        {this.renderDynamicElWrapper()}
      </div>
    );
  }

P.S:我建议您熟练掌握.map以及如何从方法返回jsx数组,因为%100的情况下您将在React项目中遇到相同的模式。

答案 1 :(得分:0)

<Row type="flex" justify="space-around">
  <Col span={10}>
     {opportunityDetails.map(detail=>{
          return detail.forEach(([key,value])=>(
               <Form.Item label={key}>
                   <Input placeholder={value} />
               </Form.Item>
             )
          )
      })}
  </Col>
</Row>