web-dev-qa-db-ja.com

Angular 6 / NGRX Combin Reducer

Angular 6 w/NgRX 4を使用しています。複数のレデューサーを組み合わせたいのですが。

app.module.ts

  import { BrowserModule } from '@angular/platform-browser';
    import { NgModule } from '@angular/core';

    import { StoreModule } from '@ngrx/store';
    import { EffectsModule } from '@ngrx/effects';

    import { StoreDevtoolsModule } from '@ngrx/store-devtools';

    import { AppComponent } from './app.component';
    import counterEffects from './store/counter/counter.effects';

    import reducers from './store/reducers';

    @NgModule({
      declarations: [AppComponent],
      imports: [
        BrowserModule,
        StoreModule.forRoot(reducers),
        EffectsModule.forRoot([counterEffects]),
        StoreDevtoolsModule.instrument({
          maxAge: 10,
        }),
      ],
      providers: [],
      bootstrap: [AppComponent],
    })
    export class AppModule {}

reducers.ts

import { combineReducers } from '@ngrx/store';
import { reducer as counterReducer, key as counterKey } from './counter';
import { reducer as profileReducer, key as profileKey } from './profile';

const appReducer = combineReducers({
  [counterKey]: counterReducer,
  [profileKey]: profileReducer,
});

export default (state, action) => {
  if (action.type === 'REDIRECT_TO_EXTERNAL') {
    state = undefined;
  }

  return appReducer(state, action);
};

私の減速機は標準的な減速機であり、特別なものはありません。

React/Redux backgroundから来て、このように複数のレデューサーを設定しますが、Angularでストアから選択しようとすると、未定義になります。開発ツールを使用してストアを表示しようとすると、リデューサーがまったく表示されず、状態は{}

Angular 6/NgRX 4）で複数のレデューサーを設定するにはどうすればよいですか？

angularreduxngrx
7
Harry Blue
import { ActionReducerMap } from '@ngrx/store';
import { reducer as counterReducer, key as counterKey } from './counter';
import { reducer as profileReducer, key as profileKey } from './profile';

export interface IAppState {
  [counterKey]: any;
  [profileKey]: any;
}

export const reducers: ActionReducerMap<IAppState> = {
  [counterKey]: counterReducer,
  [profileKey]: profileReducer,
};
5
Harry Blue