Differenzansicht 11-forms
im Vergleich zu 10-pipes

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src/app/app.html CHANGED
@@ -9,6 +9,10 @@
9
  <a routerLink="/books" routerLinkActive="active"
10
  ariaCurrentWhenActive="page">Books</a>
11
  </li>
 
 
 
 
12
  </ul>
13
  </nav>
14
  <router-outlet />
 
9
  <a routerLink="/books" routerLinkActive="active"
10
  ariaCurrentWhenActive="page">Books</a>
11
  </li>
12
+ <li>
13
+ <a routerLink="/admin" routerLinkActive="active"
14
+ ariaCurrentWhenActive="page">Admin</a>
15
+ </li>
16
  </ul>
17
  </nav>
18
  <router-outlet />
src/app/app.routes.ts CHANGED
@@ -2,9 +2,11 @@ import { Routes } from '@angular/router';
2
 
3
  import { HomePage } from './home-page/home-page';
4
  import { booksPortalRoutes } from './books-portal/books-portal.routes';
 
5
 
6
  export const routes: Routes = [
7
  { path: '', redirectTo: 'home', pathMatch: 'full' },
8
  { path: 'home', component: HomePage, title: 'BookManager' },
9
- ...booksPortalRoutes
 
10
  ];
 
2
 
3
  import { HomePage } from './home-page/home-page';
4
  import { booksPortalRoutes } from './books-portal/books-portal.routes';
5
+ import { booksAdminRoutes } from './books-admin/books-admin.routes';
6
 
7
  export const routes: Routes = [
8
  { path: '', redirectTo: 'home', pathMatch: 'full' },
9
  { path: 'home', component: HomePage, title: 'BookManager' },
10
+ ...booksPortalRoutes,
11
+ ...booksAdminRoutes
12
  ];
src/app/books-admin/book-create-page/book-create-page.html ADDED
@@ -0,0 +1,36 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ <h1>Create book</h1>
2
+
3
+ <form (submit)="submitForm()">
4
+ <label for="title">Title</label>
5
+ <input type="text" id="title" [formField]="bookForm.title" />
6
+
7
+ <label for="subtitle">Subtitle</label>
8
+ <input type="text" id="subtitle" [formField]="bookForm.subtitle" />
9
+
10
+ <label for="isbn">ISBN</label>
11
+ <input type="text" id="isbn" [formField]="bookForm.isbn" />
12
+
13
+ <fieldset>
14
+ <legend>Authors</legend>
15
+ <button type="button" (click)="addAuthorField()">Add Author</button>
16
+ <div role="group">
17
+ @for (authorField of bookForm.authors; track $index) {
18
+ <input
19
+ type="text"
20
+ aria-label="Author {{ $index + 1 }}"
21
+ [formField]="authorField"
22
+ />
23
+ }
24
+ </div>
25
+ </fieldset>
26
+
27
+ <label for="description">Description</label>
28
+ <textarea id="description" [formField]="bookForm.description"></textarea>
29
+
30
+ <label for="imageUrl">Thumbnail URL</label>
31
+ <input type="url" id="imageUrl" [formField]="bookForm.imageUrl" />
32
+
33
+ <button type="submit" [aria-busy]="bookForm().submitting()">
34
+ Save
35
+ </button>
36
+ </form>
src/app/books-admin/book-create-page/book-create-page.spec.ts ADDED
@@ -0,0 +1,94 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import { Location } from '@angular/common';
2
+ import { provideLocationMocks } from '@angular/common/testing';
3
+ import { ComponentFixture, TestBed } from '@angular/core/testing';
4
+ import { provideRouter } from '@angular/router';
5
+ import { Mock } from 'vitest';
6
+
7
+ import { routes } from '../../app.routes';
8
+ import { Book } from '../../shared/book';
9
+ import { BookStore } from '../../shared/book-store';
10
+ import { BookCreatePage } from './book-create-page';
11
+
12
+ describe('BookCreatePage', () => {
13
+ let component: BookCreatePage;
14
+ let fixture: ComponentFixture<BookCreatePage>;
15
+ let createFn: Mock;
16
+
17
+ const validBook = {
18
+ isbn: '1234567890123',
19
+ title: 'Test Book',
20
+ subtitle: '',
21
+ authors: ['Test Author'],
22
+ description: 'Test description',
23
+ imageUrl: 'https://example.org/img.jpg',
24
+ createdAt: '',
25
+ };
26
+
27
+ beforeEach(async () => {
28
+ createFn = vi.fn().mockResolvedValue(validBook);
29
+
30
+ await TestBed.configureTestingModule({
31
+ imports: [BookCreatePage],
32
+ providers: [
33
+ { provide: BookStore, useValue: { create: createFn } },
34
+ provideLocationMocks(),
35
+ provideRouter(routes),
36
+ ]
37
+ })
38
+ .compileComponents();
39
+
40
+ fixture = TestBed.createComponent(BookCreatePage);
41
+ component = fixture.componentInstance;
42
+ await fixture.whenStable();
43
+ });
44
+
45
+ it('should create', () => {
46
+ expect(component).toBeTruthy();
47
+ });
48
+
49
+ it('should add a new author field', async () => {
50
+ fixture.nativeElement.querySelector('fieldset button').click();
51
+ await fixture.whenStable();
52
+
53
+ const authorInputs = fixture.nativeElement.querySelectorAll('fieldset input[type="text"]');
54
+ expect(authorInputs).toHaveLength(2);
55
+ });
56
+
57
+ it('should submit form data', () => {
58
+ vi.useFakeTimers();
59
+ vi.setSystemTime(new Date('2026-01-15'));
60
+
61
+ component['bookForm']().value.set(validBook);
62
+ component.submitForm();
63
+
64
+ expect(createFn).toHaveBeenCalledExactlyOnceWith(
65
+ expect.objectContaining({
66
+ ...validBook,
67
+ createdAt: '2026-01-15T00:00:00.000Z'
68
+ })
69
+ );
70
+
71
+ vi.useRealTimers();
72
+ });
73
+
74
+ it('should filter out empty author data', () => {
75
+ component['bookForm'].authors().value.set(
76
+ ['', 'Test Author', '']
77
+ );
78
+
79
+ component.submitForm();
80
+
81
+ expect(createFn).toHaveBeenCalledExactlyOnceWith(
82
+ expect.objectContaining({ authors: ['Test Author'] })
83
+ );
84
+ });
85
+
86
+ it('should navigate to created book', async () => {
87
+ const location = TestBed.inject(Location);
88
+
89
+ component.submitForm();
90
+ await fixture.whenStable();
91
+
92
+ expect(location.path()).toBe('/books/details/1234567890123');
93
+ });
94
+ });
src/app/books-admin/book-create-page/book-create-page.ts ADDED
@@ -0,0 +1,49 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import { Component, inject, signal } from '@angular/core';
2
+ import { FormField, form, submit } from '@angular/forms/signals';
3
+ import { Router } from '@angular/router';
4
+
5
+ import { Book } from '../../shared/book';
6
+ import { BookStore } from '../../shared/book-store';
7
+
8
+ @Component({
9
+ selector: 'app-book-create-page',
10
+ imports: [FormField],
11
+ templateUrl: './book-create-page.html',
12
+ styleUrl: './book-create-page.css'
13
+ })
14
+ export class BookCreatePage {
15
+ #bookStore = inject(BookStore);
16
+ #router = inject(Router);
17
+
18
+ readonly #bookFormData = signal({
19
+ isbn: '',
20
+ title: '',
21
+ subtitle: '',
22
+ authors: [''],
23
+ description: '',
24
+ imageUrl: '',
25
+ });
26
+ protected readonly bookForm = form(this.#bookFormData);
27
+
28
+ addAuthorField() {
29
+ this.bookForm.authors().value.update((authors) => [...authors, '']);
30
+ }
31
+
32
+ submitForm() {
33
+ submit(this.bookForm, async (bookForm) => {
34
+ const formValue = bookForm().value();
35
+ const authors = formValue.authors.filter(author => !!author);
36
+
37
+ const newBook: Book = {
38
+ ...formValue,
39
+ authors,
40
+ createdAt: new Date().toISOString()
41
+ };
42
+
43
+ const createdBook = await this.#bookStore.create(newBook);
44
+ await this.#router.navigate(['/books', 'details', createdBook.isbn]);
45
+ });
46
+
47
+ return false; // Neuladen verhindern
48
+ }
49
+ }
src/app/books-admin/books-admin.routes.ts ADDED
@@ -0,0 +1,8 @@
 
 
 
 
 
 
 
 
 
1
+ import { Routes } from '@angular/router';
2
+
3
+ import { BookCreatePage } from './book-create-page/book-create-page';
4
+
5
+ export const booksAdminRoutes: Routes = [
6
+ { path: 'admin', redirectTo: 'admin/create' },
7
+ { path: 'admin/create', component: BookCreatePage, title: 'Create Book' }
8
+ ];
src/app/shared/book-store.ts CHANGED
@@ -1,6 +1,6 @@
1
  import { inject, Injectable } from '@angular/core';
2
  import { HttpClient, httpResource, HttpResourceRef } from '@angular/common/http';
3
- import { Observable } from 'rxjs';
4
 
5
  import { Book } from './book';
6
 
@@ -27,4 +27,10 @@ export class BookStore {
27
  remove(isbn: string): Observable<void> {
28
  return this.#http.delete<void>(`${this.#apiUrl}/books/${isbn}`);
29
  }
 
 
 
 
 
 
30
  }
 
1
  import { inject, Injectable } from '@angular/core';
2
  import { HttpClient, httpResource, HttpResourceRef } from '@angular/common/http';
3
+ import { firstValueFrom, Observable } from 'rxjs';
4
 
5
  import { Book } from './book';
6
 
 
27
  remove(isbn: string): Observable<void> {
28
  return this.#http.delete<void>(`${this.#apiUrl}/books/${isbn}`);
29
  }
30
+
31
+ create(book: Book): Promise<Book> {
32
+ return firstValueFrom(
33
+ this.#http.post<Book>(`${this.#apiUrl}/books`, book)
34
+ );
35
+ }
36
  }