我有一个名为index.js
的组件,它为我的const store = configureStore();
ReactDOM.render(
<Root store={store} />,
document.getElementById('root'),
);
Root
我需要执行此操作,因为我将redux
与onEnter
连接起来,这是由redux
的root授权所致,并且需要使用class Root extends React.Component {
constructor(props) {
super(props);
// some stuff
}
requireAuthentication = (nextState, replace) => {
// some stuff for managing auth
};
render() {
const { store } = this.props;
return (
<div>
<Provider store={store}>
<Router history={browserHistory}>
<Route path="/" component={App}>
<Route component={Dashboard}>
<IndexRoute component={Home} onEnter={requireAuthentication}/>
</Route>
<Route path="login" component={Login} />
</Route>
</Router>
</Provider>
</div>
);
}
}
// some definitions for connecting Root to redux
export default connect(mapStateToProps, mapDispatchToProps)(Root);
状态。
所以这是根:
Warning: [react-router] You cannot change <Router routes>; it will be ignored
好的......这很好,但我有一个警告:
routes
路线,也很好......但我想解决警告。所以...谷歌搜索我发现问题是一个可能的解决方案:在构造函数中声明Router
并通过props
将其传递给import React, { PropTypes } from 'react';
import { connect, Provider } from 'react-redux';
import { bindActionCreators } from 'redux';
import { Router, browserHistory, Route, IndexRoute } from 'react-router';
import { loginActions } from '../actions';
import { App, Dashboard, Home, Login } from '../features';
import adalHandler from '../services/adal';
class Root extends React.Component {
constructor(props) {
super(props);
const routes = (
<Route path="/" component={App}>
<Route component={Dashboard}>
<IndexRoute component={Home} />
</Route>
<Route path="login" component={Login} />
</Route>
);
// some stuff
}
}
requireAuthentication = (nextState, replace) => {
// stuff
};
render() {
const { store } = this.props;
return (
<div>
<Provider store={store}>
<Router history={browserHistory} routes={this.routes} />
</Provider>
</div>
);
}
}
// stuff
export default connect(mapStateToProps, mapDispatchToProps)(Root);
。
我的构造函数我这样做了:
me.el
但是现在,它不能很好地渲染。
我该如何解决?
答案 0 :(得分:1)
对象SELECT
*,
(CASE Kg WHEN 0 THEN 1 ELSE Kg END) * Qty * Rate AS Total
FROM Products
未在render方法中定义。
例如,您可以使用this.routes
替换构造函数中的const routes = (...);
,以便在render方法中访问对象。