[英]How to use store.select() to get the root level state using ngrx in Angular2?
我一直在努力解決這個問題。
我試圖在Angular2中使用ngrx來獲取存儲在redux存儲中的對象的引用。 我有以下情況:
import {User} from "./user";
export class SessionState{
constructor(
public user: User,
public currentCompanyId: number,
public currentDepartmentId: number
) { }
}
然后是以下代碼:
export class SidebarComponent implements OnInit {
constructor(private sessionStore: Store<SessionStore>, private router: Router,) { }
sessionState: Observable<SessionState>;
user: Observable<User>;
currentCompanyId: Observable<number>;
currentDepartmentId: Observable<number>;
ngOnInit(){
this.sessionState = this.sessionStore.select("sessionState");
this.user = this.sessionStore.select("user");
this.user.subscribe(user => console.log(user));
this.sessionState.subscribe(state => console.log(state));
}
}
現在用戶打印出來就好了,但是整個sessionState給出了一個未定義的。 我嘗試使用select(“”),select()和此方法的其他替代方法,但似乎無法找到獲取整個sessionState的可觀察對象的正確方法。
這里出了什么問題?
export class SidebarComponent implements OnInit {
constructor(private sessionStore: Store<SessionStore>, private router:
Router,) { }
user: Observable<User>;
currentCompanyId: Observable<number>;
currentDepartmentId: Observable<number>;
ngOnInit(){
this.sessionStore.subscribe(state => console.log(state));
this.user = this.sessionStore.select(state => state.user);
this.user.subscribe(user => console.log(user));
}
}
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