我正在使用來自flux/utils和當然Immutablejs的商店構建一個簡單的react/flux應用程序。 當應用程序最初啓動時從store檢索到的狀態是Immutable.map,但在分派之後,映射會奇蹟般地變爲對象,保留所有映射屬性,但在嘗試獲取鍵值時拋出異常。immutablejs調度後的對象
我的調度員:
export function dispatch(type, action = {}) {
if (!type) {
throw new Error('You forgot to specify type.');
}
// In production, thanks to DefinePlugin in webpack.config.production.js,
// this comparison will turn `false`, and UglifyJS will cut logging out
// as part of dead code elimination.
if (process.env.NODE_ENV !== 'production') {
// Logging all actions is useful for figuring out mistakes in code.
// All data that flows into our application comes in form of actions.
// Actions are just plain JavaScript objects describing 「what happened」.
// Think of them as newspapers.
if (action.error) {
console.error(type, action);
} else {
console.log(type, action);
}
}
debugger;
flux.dispatch({ type, ...action });
}
我的商店:
class TabStoreClass extends Store {
constructor(dispatcher, store) {
super(dispatcher, store);
this._store = store;
}
getStore() {
return this._store;
}
//Register each of the actions with the dispatcher
//by changing the store's data and emitting a
//change
__onDispatch(payload) {
const { type, activeKey } = payload;
switch (type) {
case ActionTypes.CHANGE_TAB:
this._store = this._store.update("activeKey", (activeKey) => activeKey);
this.__emitChange();
break;
}
}
}
let store = Immutable.Map({ activeKey: 1 });
const TabStore = new TabStoreClass(AppDispatcher, store);
export default TabStore;
和組件:
export default class AppContainer extends Component {
constructor(props) {
super(props);
this.state = TabStore.getStore();
}
componentDidMount() {
TabStore.addListener(this._onChange);
}
componentWillUnmount() {
TabStore.remove();
}
_onChange =() => {
this.setState(TabStore.getStore());
}
render() {
// AFTER A DISPATCH THE STATE TURNS TO OBJECT!!!!
console.log("state", this.state);
render() {
console.log("state", this.state);
return (
<div>
<TopNavigation activeKey={this.state.get("activeKey")} />
<Grid fluid>
<Row>
<Col className="sidebar" md={2}>
<SideBar activeKey={this.state.get("activeKey")} />
</Col>
<Col className="main" sm={9} smOffset={3} md={10} mdOffset={2}>
{this.props.children}
</Col>
</Row>
</Grid>
</div>
);
}
}
}
而觸發動作的成分:
export default class TopNavigation extends Component {
static propTypes = {
activeKey: PropTypes.number.isRequired
};
handleSelect = (selectedKey) => {
AppActionCreator.changeTab({ activeKey: selectedKey });
}
Image也是錯誤。
我做錯了什麼(某些)還是錯誤?
你在哪裏實際定義/使用地圖? –
剛編輯的問題。當我初始化商店。 –