angular-docs-cn/public/docs/_examples/toh-6/ts/app/heroes.component.ts

63 lines
1.4 KiB
TypeScript

// #docregion
import { Component, OnInit } from '@angular/core';
import { Router } from '@angular/router';
import { Hero } from './hero';
import { HeroService } from './hero.service';
@Component({
moduleId: module.id,
selector: 'my-heroes',
templateUrl: 'heroes.component.html',
styleUrls: [ 'heroes.component.css' ]
})
export class HeroesComponent implements OnInit {
heroes: Hero[];
selectedHero: Hero;
constructor(
private heroService: HeroService,
private router: Router) { }
getHeroes(): void {
this.heroService
.getHeroes()
.then(heroes => this.heroes = heroes);
}
// #docregion add
add(name: string): void {
name = name.trim();
if (!name) { return; }
this.heroService.create(name)
.then(hero => {
this.heroes.push(hero);
this.selectedHero = null;
});
}
// #enddocregion add
// #docregion delete
delete(hero: Hero): void {
this.heroService
.delete(hero.id)
.then(() => {
this.heroes = this.heroes.filter(h => h !== hero);
if (this.selectedHero === hero) { this.selectedHero = null; }
});
}
// #enddocregion delete
ngOnInit(): void {
this.getHeroes();
}
onSelect(hero: Hero): void {
this.selectedHero = hero;
}
gotoDetail(): void {
this.router.navigate(['/detail', this.selectedHero.id]);
}
}