form相关组件没有高阶的方法去取值以及校验

[kvkens]

详细参考antd的form一节。

对于操作N多input的时候是极其方便的，目前组件库的form相关，是需要一个一个去设置，一个一个去callback onchange去做的，校验也是自行去校验，最终取值也是，没有类似antd的高阶组件级别去做这些事情。

详情：https://ant.design/components/form-cn/

一些布局的组件放上来也是不对齐的，还需要自行设置line-height不专业.

[kvkens]

import { Form, Input, Tooltip, Icon, Cascader, Select, Row, Col, Checkbox, Button, AutoComplete } from 'antd';
const FormItem = Form.Item;
const Option = Select.Option;
const AutoCompleteOption = AutoComplete.Option;

const residences = [{
  value: 'zhejiang',
  label: 'Zhejiang',
  children: [{
    value: 'hangzhou',
    label: 'Hangzhou',
    children: [{
      value: 'xihu',
      label: 'West Lake',
    }],
  }],
}, {
  value: 'jiangsu',
  label: 'Jiangsu',
  children: [{
    value: 'nanjing',
    label: 'Nanjing',
    children: [{
      value: 'zhonghuamen',
      label: 'Zhong Hua Men',
    }],
  }],
}];

class RegistrationForm extends React.Component {
  state = {
    confirmDirty: false,
    autoCompleteResult: [],
  };
  handleSubmit = (e) => {
    e.preventDefault();
    this.props.form.validateFieldsAndScroll((err, values) => {
      if (!err) {
        console.log('Received values of form: ', values);
      }
    });
  }
  handleConfirmBlur = (e) => {
    const value = e.target.value;
    this.setState({ confirmDirty: this.state.confirmDirty || !!value });
  }
  checkPassword = (rule, value, callback) => {
    const form = this.props.form;
    if (value && value !== form.getFieldValue('password')) {
      callback('Two passwords that you enter is inconsistent!');
    } else {
      callback();
    }
  }
  checkConfirm = (rule, value, callback) => {
    const form = this.props.form;
    if (value && this.state.confirmDirty) {
      form.validateFields(['confirm'], { force: true });
    }
    callback();
  }

  handleWebsiteChange = (value) => {
    let autoCompleteResult;
    if (!value) {
      autoCompleteResult = [];
    } else {
      autoCompleteResult = ['.com', '.org', '.net'].map(domain => `${value}${domain}`);
    }
    this.setState({ autoCompleteResult });
  }

  render() {
    const { getFieldDecorator } = this.props.form;
    const { autoCompleteResult } = this.state;

    const formItemLayout = {
      labelCol: {
        xs: { span: 24 },
        sm: { span: 6 },
      },
      wrapperCol: {
        xs: { span: 24 },
        sm: { span: 14 },
      },
    };
    const tailFormItemLayout = {
      wrapperCol: {
        xs: {
          span: 24,
          offset: 0,
        },
        sm: {
          span: 14,
          offset: 6,
        },
      },
    };
    const prefixSelector = getFieldDecorator('prefix', {
      initialValue: '86',
    })(
      <Select style={{ width: 60 }}>
        <Option value="86">+86</Option>
        <Option value="87">+87</Option>
      </Select>
    );

    const websiteOptions = autoCompleteResult.map(website => (
      <AutoCompleteOption key={website}>{website}</AutoCompleteOption>
    ));

    return (
      <Form onSubmit={this.handleSubmit}>
        <FormItem
          {...formItemLayout}
          label="E-mail"
          hasFeedback
        >
          {getFieldDecorator('email', {
            rules: [{
              type: 'email', message: 'The input is not valid E-mail!',
            }, {
              required: true, message: 'Please input your E-mail!',
            }],
          })(
            <Input />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Password"
          hasFeedback
        >
          {getFieldDecorator('password', {
            rules: [{
              required: true, message: 'Please input your password!',
            }, {
              validator: this.checkConfirm,
            }],
          })(
            <Input type="password" />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Confirm Password"
          hasFeedback
        >
          {getFieldDecorator('confirm', {
            rules: [{
              required: true, message: 'Please confirm your password!',
            }, {
              validator: this.checkPassword,
            }],
          })(
            <Input type="password" onBlur={this.handleConfirmBlur} />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label={(
            <span>
              Nickname&nbsp;
              <Tooltip title="What do you want other to call you?">
                <Icon type="question-circle-o" />
              </Tooltip>
            </span>
          )}
          hasFeedback
        >
          {getFieldDecorator('nickname', {
            rules: [{ required: true, message: 'Please input your nickname!', whitespace: true }],
          })(
            <Input />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Habitual Residence"
        >
          {getFieldDecorator('residence', {
            initialValue: ['zhejiang', 'hangzhou', 'xihu'],
            rules: [{ type: 'array', required: true, message: 'Please select your habitual residence!' }],
          })(
            <Cascader options={residences} />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Phone Number"
        >
          {getFieldDecorator('phone', {
            rules: [{ required: true, message: 'Please input your phone number!' }],
          })(
            <Input addonBefore={prefixSelector} style={{ width: '100%' }} />
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Website"
        >
          {getFieldDecorator('website', {
            rules: [{ required: true, message: 'Please input website!' }],
          })(
            <AutoComplete
              dataSource={websiteOptions}
              onChange={this.handleWebsiteChange}
              placeholder="website"
            >
              <Input />
            </AutoComplete>
          )}
        </FormItem>
        <FormItem
          {...formItemLayout}
          label="Captcha"
          extra="We must make sure that your are a human."
        >
          <Row gutter={8}>
            <Col span={12}>
              {getFieldDecorator('captcha', {
                rules: [{ required: true, message: 'Please input the captcha you got!' }],
              })(
                <Input size="large" />
              )}
            </Col>
            <Col span={12}>
              <Button size="large">Get captcha</Button>
            </Col>
          </Row>
        </FormItem>
        <FormItem {...tailFormItemLayout} style={{ marginBottom: 8 }}>
          {getFieldDecorator('agreement', {
            valuePropName: 'checked',
          })(
            <Checkbox>I have read the <a href="">agreement</a></Checkbox>
          )}
        </FormItem>
        <FormItem {...tailFormItemLayout}>
          <Button type="primary" htmlType="submit">Register</Button>
        </FormItem>
      </Form>
    );
  }
}

const WrappedRegistrationForm = Form.create()(RegistrationForm);

ReactDOM.render(<WrappedRegistrationForm />, mountNode);

[kvkens]

偷偷关闭~~~