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【后台管理系统】—— Ant Design Pro组件使用(二)

时间:2019-11-22 19:18:14      阅读:316      评论:0      收藏:0      [点我收藏+]

标签:tar   validator   rom   name   conf   ora   指定   basis   blur   

一、关联表单项 - 动态增删输入框Input

      技术图片

 

  • 封装子组件
    class ParamsInputArray extends React.Component{
      constructor(props){
        super(props);
      }
    
      // 改变一组input输入框中的key值和value值
      handleChange = (paramType, index) => {
         const { onChange, value={} } = this.props;
    
         if(event && event.target && event.target.value){
            let newValue = {...value};
            if(paramType == ‘key‘){
              newValue.key = event.target.value
            }else{
              newValue.value = event.target.value
            }
    
            // 调用父级props传来的onChange事件
            // 将newValue对象存入数组对应index的位置
            onChange(newValue, index)  
          }
      }
    
      render() {
        const { value={}, keys, index, add, remove} = this.props;
    
        return (
          <Row gutter={8}>
              <Col span={5}>
                  <Input placeholder="颜色/尺码" defaultValue={value.key} onChange={() => this.handleChange(‘key‘, index)}/>
              </Col>
              <Col span={8}>
                  <Input placeholder="请输入参数" defaultValue={value.value} onChange={() => this.handleChange(‘value‘, index)}/>
              </Col>
              <Col span={2}>
                {keys.length > 1 ? (
                  <Icon
                    type="minus-circle-o"
                    onClick={() => remove(index)}
                  />
                ) : null}
              </Col>
              <Col span={6}>
                {index === 0 ? (
                  <Button type="primary" onClick={() => add()}>新增</Button>
                  ) : null}
              </Col>
          </Row>
        )
      }
    }
  • 使用的几个方法

    // 初始化keys
    const initKeys = (detail) => {
        let defaultKeys = [];
        detail.param.forEach((val, index) => defaultKeys.push(index))
        return defaultKeys;
    }
    
    // 经过 getFieldDecorator 包装的控件
    // 表单控件会自动添加 value(或 valuePropName 指定的其他属性)
    // onChange(或 trigger 指定的其他属性)
    // 数据同步将被 Form 接管
    getFieldDecorator(‘keys‘, { initialValue: current && detail && detail.param.length ? initKeys(detail) : [0] });
    
    
    // 获取(上面注册了的)表单控件的值
    const keys = getFieldValue(‘keys‘);
    // 增加表单项
    const add = () => {
        const keys = getFieldValue(‘keys‘);
    
        if (keys.length === 5) {
          message.info(‘产品参数最多5个‘)
          return;
        }
        let nextKeys = keys;
        let nextKeyValue = keys[keys.length-1]+1;
        nextKeys = nextKeys.concat(nextKeyValue);
    
        setFieldsValue({
          keys: nextKeys,
        });
    };
    
    // 删除表单项
    const remove = index => {
        const keys = getFieldValue(‘keys‘);
        let param = getFieldValue(‘param‘);
        if (keys.length === 1) {
          return;
        }
        if(param[index]){
          param.splice(index, 1)
        }
        setFieldsValue({
          keys: keys.filter((keyItem, i) => i !== index),
          param
        });
    };
    // 初始化params的初始值
    const initParamValue = (detail, index) => {
        let defaultParamValue = {};
        detail.param.forEach((p, i) => {
          if(i === index){
            defaultParamValue = p
          }
        })
        return defaultParamValue;
    }
    
    // 修改并存入 :每一组表单项key和value改变后的newValue对象
    const handleParamChange = (newValue, index) => {
        let param = getFieldValue(‘param‘);
        setFieldsValue({
          param: param.map((p, i) => i == index ? newValue : p)
        });
    }
    
    // 循环keys动态渲染出:关联输入框表单项
    const paramsFormItems = keys.map((k, index) => (
        <FormItem
          {...(index === 0 ? formLayout : formLayoutWithOutLabel)}
          label={index === 0 ? ‘参数信息‘ : ‘‘}
          key={k}
        >
          {getFieldDecorator(`param[${index}]`, {
              validateTrigger: [‘onChange‘, ‘onBlur‘],
              rules: [
              {
                type: ‘object‘,
                required: true,
                validator: (_, value, callback) => {
                  if (!value.key || !value.value || (value.key && value.key.length > 10) || (value.value && value.value.length > 20)) {
                    callback(‘请输入1-10字参数及1-20参数信息或删除此输入框‘)
                  } else {
                    callback()
                  }
                }
              },
            ],
            initialValue: current && detail && detail.param.length ? initParamValue(detail, index) : {}
          })(
              <ParamsInputArray keys={keys} index={index} add={add} remove={remove} onChange={handleParamChange}/>  // 自定义的两个为一组的Input输入框组件
            )}
        </FormItem>
      ));
  • 弹框的Form表单列表中嵌入

    {paramsFormItems}

     

二、关联表单项 - 单独两个Input输入框

     技术图片

 

  • 封装子组件
    class RegionInput extends React.Component{
      constructor(props){
        super(props);
      }
    handleChange
    = (regionType) => { const { onChange, value={} } = this.props; if(event && event.target && event.target.value){ let newValue = {...value}; if(regionType == ‘min‘){ newValue.min = Number(event.target.value) }else{ newValue.max = Number(event.target.value) } onChange(newValue) } } render() { const { value={}, disabled } = this.props; return ( <Row gutter={8}> <Col span={11}> <Input placeholder="最低价" defaultValue={value.min} onChange={() => this.handleChange(‘min‘)} disabled={disabled}/> </Col> <Col span={2}> <span style={{width: ‘100%‘, textAlign: ‘center‘}}>—</span> </Col> <Col span={11}> <Input placeholder="最高价" defaultValue={value.max} onChange={() => this.handleChange(‘max‘)} disabled={disabled}/> </Col> </Row> ) } }
  • 表单中使用子组件

    <FormItem label="价格区间" {...formLayout}>
          {getFieldDecorator(‘priceRegion‘, {
                 validateTrigger: [‘onChange‘, ‘onBlur‘],
                 rules: [
                     {
                          type: ‘object‘,
                          required: getFieldValue(‘basis‘) == ‘Price‘,
                          validator: (_, value, callback) => {
                             if (getFieldValue(‘basis‘) == ‘Price‘ && ( isNaN(value.min) || isNaN(value.max)  || !(/^[0-9]+([.]\d{1,2})?$/.test(value.min)) || !(/^[0-9]+([.]\d{1,2})?$/.test(value.max))  || (value.min && value.min > 50000 ) || (value.max && value.max > 50000))) {
                                callback(‘请输入0-50000元价格区间‘)
                             }else{
                                callback()
                             }
                           }
                      }],
                      initialValue: current && current.priceRegion ? {min: (current.priceRegion.min/100).toFixed(2), max: (current.priceRegion.max/100).toFixed(2)} : {}
            })(
    <RegionInput onChange={handleRegionChange} disabled={getFieldValue(‘basis‘) != ‘Price‘}/>
    )} </FormItem>

     

三、单选按钮RadioButton

技术图片

  • RadioGroup包裹六个RadioButton
    <RadioGroup defaultValue=‘5‘ onChange={(e) => this.handleStatusChange(e)}>
            <RadioButton value=‘5‘>全部</RadioButton>
            <RadioButton value=‘0‘>未付款</RadioButton>
            <RadioButton value=‘1‘>待收货</RadioButton>
            <RadioButton value=‘2‘>已签收</RadioButton>
            <RadioButton value=‘3‘>交易成功</RadioButton>
            <RadioButton value=‘4‘>交易失败</RadioButton>
    </RadioGroup>
  • handleStatusChange改变state中存的status获取,走接口获取对应的列表数据

    handleStatusChange = e => {
        const { dispatch } = this.props;
        const { keyword, currentPage } = this.state;
        if(e && e.target && e.target.value){
          let value = e.target.value == 5 ? null : Number(e.target.value);
          this.setState({status: value})
    dispatch({ type:
    ‘order/fetch‘, payload: { currentPage, e: { status: value, keyword }, showCount: 10 }, }); } }

 

四、开关按钮Switch

    技术图片 

 <FormItem label="是否设为系统产品" {...formLayout}>
    { getFieldDecorator(‘fromSystem‘, {
         rules: [{ required: true, message: ‘请选择是否设为系统产品‘}],
         initialValue: current && detail ? detail.fromSystem : false
    })(
<Switch defaultChecked={current && detail ? detail.fromSystem : false} />
)} </FormItem>

 

五、日期选择框 - 一个带时间的日期

       技术图片

<FormItem label="发布时间" {...formLayout}>
         { getFieldDecorator(‘publishTime‘, {
                rules: [{ type: ‘object‘, required: true, message: ‘请选择发布时间‘ }],
                initialValue: current && detail ? moment(detail.publishTime) : moment(new Date()),
         })(
<DatePicker showTime format="YYYY-MM-DD HH:mm:ss" />
)} </FormItem>

 

六、日期选择框 - 两个起止日期

技术图片

const { RangePicker } = DatePicker;

// state中初始值
rangePicker: null,

const rangeConfig = {
      rules: [{ type: ‘array‘ }],
};

<FormItem label="选择日期">
     {
           getFieldDecorator(‘rangePicker‘, rangeConfig)(<RangePicker style={{width: 550}} />)
      }
</FormItem>

 


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【后台管理系统】—— Ant Design Pro组件使用(二)

标签:tar   validator   rom   name   conf   ora   指定   basis   blur   

原文地址:https://www.cnblogs.com/ljq66/p/11913357.html

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