907f848c95
* docs(toh-6/dart): refactoring of 'add, edit, delete heroes' Refactoring of "add, edit, delete heroes" section of toh-6 from one big bottom-up step into small independent feature slices, where the user achieves a "milesone" (i.e., can run the full app) after each feature section. The section rewrite is shorter and offers a better UX. Other simplifications: - Error handling is consistent: in the hero service we log to the console, everwhere else we just let errors bubble up. - Hero service methods renamed based on function (create, update) rather then lower-level implementation (post, put). - @Output properties have been eliminated (since they weren't explained). E2E tests now pass on both the TS and Dart sides. * docs(toh-6/ts): refactoring of 'add, edit, delete heroes' Refactoring of "add, edit, delete heroes" section of toh-6 from one big bottom-up step into small independent feature slices, where the user achieves a "milesone" (i.e., can run the full app) after each feature section. The section rewrite is shorter and offers a better UX. Other simplifications: - Error handling is consistent: in the hero service we log to the console, everwhere else we just let errors bubble up. - Hero service methods renamed based on function (create, update) rather then lower-level implementation (post, put). - @Output properties have been eliminated (since they weren't explained). E2E tests now pass on both the TS and Dart sides. Post-Dart-review updates included. * docs(toh-6): ward tweaks
62 lines
1.4 KiB
TypeScript
62 lines
1.4 KiB
TypeScript
// #docregion
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import { Component, OnInit } from '@angular/core';
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import { Router } from '@angular/router';
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import { Hero } from './hero';
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import { HeroService } from './hero.service';
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@Component({
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selector: 'my-heroes',
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templateUrl: 'app/heroes.component.html',
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styleUrls: ['app/heroes.component.css']
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})
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export class HeroesComponent implements OnInit {
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heroes: Hero[];
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selectedHero: Hero;
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constructor(
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private heroService: HeroService,
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private router: Router) { }
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getHeroes(): void {
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this.heroService
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.getHeroes()
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.then(heroes => this.heroes = heroes);
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}
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// #docregion add
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add(name: string): void {
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name = name.trim();
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if (!name) { return; }
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this.heroService.create(name)
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.then(hero => {
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this.heroes.push(hero);
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this.selectedHero = null;
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});
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}
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// #enddocregion add
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// #docregion delete
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delete(hero: Hero): void {
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this.heroService
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.delete(hero.id)
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.then(() => {
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this.heroes = this.heroes.filter(h => h !== hero);
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if (this.selectedHero === hero) { this.selectedHero = null; }
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});
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}
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// #enddocregion delete
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ngOnInit(): void {
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this.getHeroes();
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}
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onSelect(hero: Hero): void {
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this.selectedHero = hero;
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}
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gotoDetail(): void {
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this.router.navigate(['/detail', this.selectedHero.id]);
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}
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}
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