Select

Standalone-version of the @select decorator from ng2-redux. Experiment to see if I can make it work with ngrx too.

Credit to Cosmin Ronnin for the original decorator implementation.

Setup

Ng2-Redux:

import { NgModule } from '@angular/core';
import { NgRedux } from 'ng2-redux';
import { NgSelect } from '../../../src';
import { IAppState, rootReducer, INITIAL_STATE } from '../store/index';

@NgModule({
  /* ... */
  providers: [
    NgRedux,
    NgSelect,
    /* ... */
  ]
})
export class AppModule {
  constructor(ngRedux: NgRedux<IAppState>, ngSelect: NgSelect) {
    ngRedux.configureStore(rootReducer, INITIAL_STATE);
    ngSelect.connect(ngRedux);
  }
}

@ngrx/store:

import { NgModule } from '@angular/core';
import { Store, StoreModule } from '@ngrx/store';
import { NgSelect } from '../../../src';
import { IAppState, rootReducer, INITIAL_STATE } from '../store/index';

@NgModule({
  imports: [
    StoreModule.provideStore(rootReducer, INITIAL_STATE),
    /* ... */
  ],
  providers: [
    NgSelect,
    /* ... */
  ],
  /* ... */
})
export class AppModule {
  constructor(store: Store<IAppState>, ngSelect: NgSelect) {
    ngSelect.connect(store);
  }
}

Usage

Usage is exactly the same with both store implementations:

import { Component } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import { CounterActions } from '../actions/counter.actions';
import { select } from '../../../src';

@Component({
  selector: 'counter',
  template: `
  <p>
    Clicked: {{ count$ | async }} times
    <button (click)="actions.increment()">+</button>
    <button (click)="actions.decrement()">-</button>
  </p>
  `
})
export class Counter {
  @select() count$: Observable<number>;
  @select(['path', 'to', 'a', 'prop']) deepProperty$: Observable<any>;
  @select(s => s.count) functionValue$: Observable<any>;

  constructor(private actions: CounterActions) {}
}