我从React和Redux开始,所以我已经将一个组件连接到Redux商店,我得到了一个非常简单的登录组件:
import React, { Component } from 'react';
import { findDOMNode } from "react-dom";
import RaisedButton from 'material-ui/lib/raised-button';
import TextField from 'material-ui/lib/text-field';
import { connect } from 'react-redux';
import { loginRequest, loginSuccess, loginFailure } from '../actions';
import { browserHistory } from 'react-router';
class LoginForm extends Component {
componentDidMount() {
console.log(console.log(JSON.stringify(this.props,null,2)));
}
readyToSubmit() {
}
onSubmit(e) {
e && e.preventDefault();
let emailInput = findDOMNode(this.refs.emailInput).querySelector("input").value;
let passwordInput = findDOMNode(this.refs.passwordInput).querySelector("input").value;
if (emailInput.trim().length && passwordInput.trim().length) {
if (emailInput.startsWith('hello')) {
this.props.loginSuccess(emailInput);
} else {
console.log(emailInput);
this.props.loginFailure(emailInput);
}
}
}
render() {
let disabled = !!this.props.login.waiting || !!this.props.ready;
return (
<form onSubmit={::this.onSubmit}>
<div>
<TextField hint="E-mail" floatingLabelText="E-mail" ref="emailInput" onChange={::this.readyToSubmit}></TextField><br/>
</div>
<div>
<TextField hint="Contraseña" floatingLabelText="Contraseña" type="password" ref="passwordInput" onChange={::this.readyToSubmit}></TextField><br/><br/>
</div>
<div>
<RaisedButton type="submit" label="Acceder" primary={true} disabled={disabled} onClick={::this.onSubmit}/>
</div>
</form>
);
}
}
export default connect(
state => {
return {
login: state.login
}
},
{
loginSuccess: loginSuccess,
loginFailure: loginFailure,
loginRequest: loginRequest
})(LoginForm);
这些是行动:
export const loginSuccess = (email) => {
return {type: 'LOGIN_SUCCESS', email: email };
}
export const loginFailure = (email) => {
return {type: 'LOGIN_FAILURE', email: email };
}
export const loginRequest = (email) => {
return {type: 'LOGIN_REQUEST', email: email};
}
这些是我的减速器:
const login = (state = {}, action) => {
switch (action.type) {
case 'LOGIN_REQUEST':
return {
...state.login,
login: {
waiting: true,
email: action.email
}
};
break;
case 'LOGIN_SUCCESS':
return {
...state.login,
login: {
waiting: false,
email: action.email,
},
auth: {
token: state.token
}
};
break;
case 'LOGIN_FAILURE':
return {
...state.login,
login: {
waiting: false,
email: action.email,
errors: action.errors
}
};
break;
default:
return {
...state.login,
login: {
ready: false
}
};
}
}
export default login
所以,我注意到的第一个奇怪的东西是componentDidMount
日志:
{
"login": {
"login": {
"ready": false
}
}
}
所以我需要一些帮助:
login.login
)。state
,并且connect函数也会将组件属性和一些调度程序的某些商店属性绑定到属性..但是如何轻松访问作为道具一部分的字段,按钮等值。 答案 0 :(得分:3)
我认为这可能是你的减速器,而不是:
case 'LOGIN_REQUEST':
return {
...state.login,
login: {
waiting: true,
email: action.email
}
};
break;
试试这个:
case 'LOGIN_REQUEST':
return {
...state, <-- removed the .login from here
login: {
waiting: true,
email: action.email
}
};
break;
或者:
case 'LOGIN_REQUEST':
return {
...state.login,
//<-- removed the login key from the object you add to state.login
waiting: true,
email: action.email
};
break;
如果有帮助,请告诉我们:)
答案 1 :(得分:0)
写下以下内容:
state => {return state.login}
而不是
export default connect(
state => {
return {
login: state.login
}