如何将简单的 Formik 表单与 Redux 存储连接并分派动作? [英] How to connect simple Formik form with Redux store and dispatch an action?

问题描述

我是 react/redux 的新手，但可以为我的应用实现一些简单的 addProduct 表单.今天我尝试用 Formik 从这个 基本演示，但我不明白我应该在哪里放置调度"功能(我到处都试过了).

可能是我以错误的方式使用了连接?

我的新组件与 Demo 中的完全一样，除了我用 productName(和其他附加字段)替换了电子邮件).但我无法理解如何将值"从 Formik 传递到 Redux 存储.

我的旧表单组件，没有 Formik，看起来像这样:

从'react'导入React；从'react-redux'导入{连接}；从'../actions' 导入 { addProduct };const AddProduct0 = ({ dispatch }) =>{让输入SKU编号；让输入产品名称；返回 (<div><输入ref={(节点)=>{inputSKUNumber = 节点；}}占位符="SKU 编号"/><输入ref={(节点)=>{输入产品名称 = 节点；}}占位符=产品名称"/><按钮onClick={() =>{dispatch(addProduct({ SKUNumber: inputSKUNumber.value, name: inputProductName.value }));inputSKUNumber.value = '';inputProductName.value = '';}}>添加产品

);};const AddProduct = connect()(AddProduct0);导出默认添加产品；

我使用 formik 的新组件如下所示:

从'react'导入React；从'react-redux'导入{连接}；从'formik'导入{ withFormik };从 'yup' 导入 Yup；从'../actions' 导入 { addProduct };导入'./helper.css';//我们的内部表单组件.将被 Formik({..}) 包裹const MyInnerForm = (props) =>{常量{价值观，感动，错误，肮脏的，正在提交，处理更改，处理模糊，处理提交，手柄重置，} = 道具;返回 (<form onSubmit={handleSubmit}><label htmlFor="SKUNumber">SKU 编号</label><输入id="SKU 编号"占位符="SKU 编号"类型=数字"值={values.SKUNumber}onChange={handleChange}onBlur={handleBlur}className={errors.SKUNumber &&触摸.SKU编号?文本输入错误":文本输入"}/><div className="input-feedback">{touched.SKUNumber ?errors.SKUNumber : ''}</div><label htmlFor="productName">产品名称</label><输入id="产品名称"占位符=产品名称"类型=文本"值={values.productName}onChange={handleChange}onBlur={handleBlur}className={errors.productName &&触摸.产品名称?文本输入错误":文本输入"}/><div className="input-feedback">{touched.productName ?errors.productName : ''}</div><按钮类型=按钮"类名=大纲"onClick={handleReset}禁用={!脏||正在提交}>重启<button type="submit" disabled={isSubmitting}>提交<DisplayFormikState {...props}/></表单>);};const EnhancedForm = withFormik({mapPropsToValues: () =>({SKU 编号:12345678，productName: '默认产品',}),验证架构:是的.对象().形状({SKU 编号:是的.编号().max(99999999, 'SKU 编号必须小于 8 位').required('SKU 编号为必填项！'),产品名称:Yup.string().min(5, '产品名称必须长于 5 个符号').max(50, '产品名称必须少于 50 个符号').required('产品名称为必填项！'),handleSubmit: (values, { setSubmitting }) =>{setTimeout(() => {警报(JSON.stringify(值，空，2))；设置提交(假)；}, 1000);//dispatch(addProduct(values));},displayName: 'BasicForm',//帮助 React DevTools})(MyInnerForm);export const DisplayFormikState = props =>(<div style={{ margin: '1rem 0' }}><h3 style={{ fontFamily: 'monospace' }}/><预风格={{背景:'#f6f8fa'，字体大小:'.65rem'，填充:'.5rem'，}}><strong>道具</strong>= {JSON.stringify(props, null, 2)}

);const AddProduct = connect()(EnhancedForm);导出默认添加产品；

附言如果有人在这里有声望添加标签formik"，请这样做.

解决方案

我还在 formik 页面上打开了一个问题.其中一位贡献者给了我答案.一切都适用于该代码:

handleSubmit(values, { props, setSubmitting }) {props.dispatch(addProduct(values));设置提交(假)；},

I'm new at react/redux, but can realize some simple addProduct form for my app. Today I tried to replace it with Formik from this Basic demo, but I cant't understand where should I place "dispatch" function (I tried it to everywhere).

May be I use connect in wrong way?

My new component is exactly like in Demo, except I replaced email with productName (and other additional fields). But I can't understand how to pass "values" from Formik to Redux store.

My old form component, without Formik, looks like this:

import React from 'react';
import { connect } from 'react-redux';
import { addProduct } from '../actions';

const AddProduct0 = ({ dispatch }) => {
  let inputSKUNumber;
  let inputProductName;
  return (
    <div>
      <input
        ref={(node) => {
          inputSKUNumber = node;
        }}
        placeholder="SKU Number"
      />
      <input
        ref={(node) => {
          inputProductName = node;
        }}
        placeholder="Product name"
      />
      <button
        onClick={() => {
          dispatch(addProduct({ SKUNumber: inputSKUNumber.value, name: inputProductName.value }));
          inputSKUNumber.value = '';
          inputProductName.value = '';
        }}
      >
        Add Product
      </button>
    </div>
  );
};
const AddProduct = connect()(AddProduct0);

export default AddProduct;

My new component with formik looks like this:

import React from 'react';
import { connect } from 'react-redux';
import { withFormik } from 'formik';
import Yup from 'yup';
import { addProduct } from '../actions';
import './helper.css';

// Our inner form component. Will be wrapped with Formik({..})
const MyInnerForm = (props) => {
  const {
    values,
    touched,
    errors,
    dirty,
    isSubmitting,
    handleChange,
    handleBlur,
    handleSubmit,
    handleReset,
  } = props;
  return (
    <form onSubmit={handleSubmit}>
      <label htmlFor="SKUNumber">SKU Number</label>
      <input
        id="SKUNumber"
        placeholder="SKU Number"
        type="number"
        value={values.SKUNumber}
        onChange={handleChange}
        onBlur={handleBlur}
        className={errors.SKUNumber && touched.SKUNumber ? 'text-input error' : 'text-input'}
      />
      <div className="input-feedback">{touched.SKUNumber ? errors.SKUNumber : ''}</div>

      <label htmlFor="productName">Product Name</label>
      <input
        id="productName"
        placeholder="Product Name"
        type="text"
        value={values.productName}
        onChange={handleChange}
        onBlur={handleBlur}
        className={errors.productName && touched.productName ? 'text-input error' : 'text-input'}
      />
      <div className="input-feedback">{touched.productName ? errors.productName : ''}</div>


      <button
        type="button"
        className="outline"
        onClick={handleReset}
        disabled={!dirty || isSubmitting}
      >
        Reset
      </button>
      <button type="submit" disabled={isSubmitting}>
        Submit
      </button>

      <DisplayFormikState {...props} />
    </form>
  );
};

const EnhancedForm = withFormik({
  mapPropsToValues: () => ({
    SKUNumber: 12345678,
    productName: 'Default Product',
  }),

  validationSchema: Yup.object().shape({
    SKUNumber: Yup.number()
      .max(99999999, 'SKU Number must be less than 8 digits')
      .required('SKU Number is required!'),

    productName: Yup.string()
      .min(5, 'Product name must be longer than 5 symbols')
      .max(50, 'Product name must be shorter than 50 symbols')
      .required('Product name is required!'),

  handleSubmit: (values, { setSubmitting }) => {
    setTimeout(() => {
      alert(JSON.stringify(values, null, 2));
      setSubmitting(false);
    }, 1000);
    // dispatch(addProduct(values));
  },
  displayName: 'BasicForm', // helps with React DevTools
})(MyInnerForm);

export const DisplayFormikState = props => (
  <div style={{ margin: '1rem 0' }}>
    <h3 style={{ fontFamily: 'monospace' }} />
    <pre
      style={{
        background: '#f6f8fa',
        fontSize: '.65rem',
        padding: '.5rem',
      }}
    >
      <strong>props</strong> = {JSON.stringify(props, null, 2)}
    </pre>
  </div>
);

const AddProduct = connect()(EnhancedForm);

export default AddProduct;

p.s. If someone have reputation here to add tag "formik", please, do it.

解决方案

I also opened an issue on formik page. And there one of contributors gave me the answer. All works with that code:

handleSubmit(values, { props, setSubmitting }) {
    props.dispatch(addProduct(values));
    setSubmitting(false);
  },

这篇关于如何将简单的 Formik 表单与 Redux 存储连接并分派动作?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！