我找到了 Redux Form 包。它做得很好!
所以,你可以将 Redux 与 React-Redux 一起使用。
首先,您必须创建一个表单组件(显然):
import React from 'react';
import { reduxForm } from 'redux-form';
import validateContact from '../utils/validateContact';
class ContactForm extends React.Component {
render() {
const { fields: {name, address, phone}, handleSubmit } = this.props;
return (
<form onSubmit={handleSubmit}>
<label>Name</label>
<input type="text" {...name}/>
{name.error && name.touched && <div>{name.error}</div>}
<label>Address</label>
<input type="text" {...address} />
{address.error && address.touched && <div>{address.error}</div>}
<label>Phone</label>
<input type="text" {...phone}/>
{phone.error && phone.touched && <div>{phone.error}</div>}
<button onClick={handleSubmit}>Submit</button>
</form>
);
}
}
ContactForm = reduxForm({
form: 'contact', // the name of your form and the key to
// where your form's state will be mounted
fields: ['name', 'address', 'phone'], // a list of all your fields in your form
validate: validateContact // a synchronous validation function
})(ContactForm);
export default ContactForm;
在此之后,您将连接处理表单的组件:
import React from 'react';
import { connect } from 'react-redux';
import { initialize } from 'redux-form';
import ContactForm from './ContactForm.react';
class App extends React.Component {
handleSubmit(data) {
console.log('Submission received!', data);
this.props.dispatch(initialize('contact', {})); // clear form
}
render() {
return (
<div id="app">
<h1>App</h1>
<ContactForm onSubmit={this.handleSubmit.bind(this)}/>
</div>
);
}
}
export default connect()(App);
并在组合减速器中添加 redux-form 减速器:
import { combineReducers } from 'redux';
import { appReducer } from './app-reducers';
import { reducer as formReducer } from 'redux-form';
let reducers = combineReducers({
appReducer, form: formReducer // this is the form reducer
});
export default reducers;
验证器模块如下所示:
export default function validateContact(data, props) {
const errors = {};
if(!data.name) {
errors.name = 'Required';
}
if(data.address && data.address.length > 50) {
errors.address = 'Must be fewer than 50 characters';
}
if(!data.phone) {
errors.phone = 'Required';
} else if(!/\d{3}-\d{3}-\d{4}/.test(data.phone)) {
errors.phone = 'Phone must match the form "999-999-9999"'
}
return errors;
}
表单完成后,当您要用一些值填充所有字段时,可以使用该函数:initialize
componentWillMount() {
this.props.dispatch(initialize('contact', {
name: 'test'
}, ['name', 'address', 'phone']));
}
填充表单的另一种方法是设置初始值。
ContactForm = reduxForm({
form: 'contact', // the name of your form and the key to
fields: ['name', 'address', 'phone'], // a list of all your fields in your form
validate: validateContact // a synchronous validation function
}, state => ({
initialValues: {
name: state.user.name,
address: state.user.address,
phone: state.user.phone,
},
}))(ContactForm);
如果您有任何其他方法来处理此问题,请留言!谢谢。