5: Add In-app Navigation

[examples/angular-tour-of-heroes] / src / app / hero-detail / hero-detail.component.ts

diff --git a/src/app/hero-detail/hero-detail.component.ts b/src/app/hero-detail/hero-detail.component.ts
index caa9c09..c252bcf 100644 (file)
--- a/src/app/hero-detail/hero-detail.component.ts
+++ b/src/app/hero-detail/hero-detail.component.ts
@@ -1,4 +1,8 @@
 import { Component, OnInit, Input } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { Location } from '@angular/common';
+
+import { HeroService } from '../hero.service';
 import { Hero } from '../hero';
 
 @Component({
@@ -10,9 +14,22 @@ export class HeroDetailComponent implements OnInit {
 
   @Input() hero : Hero;
 
-  constructor() { }
+  constructor(
+    private route: ActivatedRoute,
+    private heroService: HeroService,
+    private location: Location
+  ) { }
 
   ngOnInit() {
+    this.getHero();
+  }
+
+  getHero(): void {
+    const id = +this.route.snapshot.paramMap.get('id');
+    this.heroService.getHero(id).subscribe(hero => this.hero = hero);
   }
 
+  goBack(): void {
+    this.location.back();
+  }
 }