added the bookshelf app

bookshelf/admin.py

+from django.contrib import admin
+from .models import Author, Books
+
+class AuthorAdmin(admin.ModelAdmin):
+    model = Author
+    list_display = ('first_name', 'last_name', 'age', 'nationality')
+    search_fields = ('first_name', 'last_name', 'nationality')
+    list_filter = ('nationality',)
+    fields = ('first_name', 'last_name', 'age', 'nationality', 'bio')
+
+class BookAdmin(admin.ModelAdmin):
+    model = Books
+    list_display = ('title', 'author', 'publisher', 'year_published', 'ISBN')
+    search_fields = ('title', 'author__first_name', 'author__last_name', 'publisher')
+    list_filter = ('year_published',)
+    fields = ('title', 'author', 'publisher', 'year_published', 'ISBN', 'blurb')
+
+admin.site.register(Author, AuthorAdmin)
+admin.site.register(Books, BookAdmin)

bookshelf/apps.py

+from django.apps import AppConfig
+
+
+class BookshelfConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'bookshelf'

bookshelf/migrations/0001_initial.py

+# Generated by Django 4.1.7 on 2023-03-27 14:34
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Author',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('first_name', models.CharField(max_length=100)),
+                ('last_name', models.CharField(max_length=100)),
+                ('age', models.IntegerField()),
+                ('nationality', models.CharField(max_length=100)),
+                ('bio', models.CharField(max_length=700)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Books',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=100)),
+                ('publisher', models.CharField(max_length=100)),
+                ('year_published', models.IntegerField()),
+                ('ISBN', models.CharField(max_length=13)),
+                ('blurb', models.CharField(max_length=200)),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='bookshelf.author')),
+            ],
+        ),
+    ]

bookshelf/migrations/0002_alter_books_author.py

+# Generated by Django 4.1.7 on 2023-03-27 18:25
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('bookshelf', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='books',
+            name='author',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='books', to='bookshelf.author'),
+        ),
+    ]

bookshelf/models.py

+from django.db import models
+
+class Author(models.Model):
+    first_name = models.CharField(max_length=100)
+    last_name = models.CharField(max_length=100)
+    age = models.IntegerField()
+    nationality = models.CharField(max_length=100)
+    bio = models.CharField(max_length=700)
+
+    def __str__(self):
+        return self.first_name + " " + self.last_name
+
+class Books(models.Model):
+    title = models.CharField(max_length=100)
+    author = models.ForeignKey(Author, on_delete=models.CASCADE, related_name='books')
+    publisher = models.CharField(max_length=100)
+    year_published = models.IntegerField()
+    ISBN = models.CharField(max_length=13)
+    blurb = models.CharField(max_length=200)
+
+    def __str__(self):
+        return self.title

bookshelf/templates/bookshelf/author_details.html

+{% extends 'bookshelf/base.html' %}
+
+{% block title %}{{ author.first_name }} {{ author.last_name }}{% endblock %}
+
+{% block content %}
+  <h1>{{ author.first_name }} {{ author.last_name }}</h1>
+  <p>Age: {{ author.age }}</p>
+  <p>Nationality: {{ author.nationality }}</p>
+  <p>{{ author.bio }}</p>
+
+  <h2>Books by {{ author.first_name }} {{ author.last_name }} I Love:</h2>
+  <ul>
+    {% for book in author.books.all %}
+      <li><a href="{% url 'book_details' book.pk %}">{{ book.title }}</a></li>
+    {% empty %}
+      <li>No books found for {{ author.first_name }} {{ author.last_name }}</li>
+    {% endfor %}
+  </ul>
+
+  <ul>
+    <li><a href="{% url 'home' %}">Home</a>&emsp; <a href="{% url 'books' %}">Books</a> &emsp; <a href="{% url 'authors' %}">Authors</a></li>
+
+  </ul>
+{% endblock %}

bookshelf/templates/bookshelf/authors.html

+{% extends 'bookshelf/base.html' %}
+
+{% block title %}My Favorite Authors{% endblock %}
+
+{% block content %}
+  <h1>Pao's Favorite Authors</h1>
+  <ul>
+  {% for author in authors %}
+    <li><a href="{% url 'author_details' author.pk %}">{{ author.first_name }} {{ author.last_name }}</a></li>
+  {% endfor %}
+  </ul>
+  <ul>
+    <li><a href="{% url 'home' %}">Home</a>&emsp;<a href="{% url 'books' %}">Books</a></li>
+
+  </ul>
+{% endblock %}

bookshelf/templates/bookshelf/base.html

+<!DOCTYPE html>
+<html>
+  <head>
+    <title>{% block title %}{% endblock %}</title>
+  </head>
+  <body>
+    {% block content %}
+    {% endblock %}
+  </body>
+</html>

bookshelf/templates/bookshelf/books.html

+{% extends 'bookshelf/base.html' %}
+
+{% block title %}My Favorite Books{% endblock %}
+
+{% block content %}
+  <h2>Pao's Favorite Books:</h2>
+  <ul>
+    {% for book in books %}
+      <li><a href="{% url 'book_details' book.pk %}">{{ book.title }}</a></li>
+    {% endfor %}
+  </ul>
+
+  <nav>
+    <ul>
+      <li><a href="{% url 'home' %}">Home</a> &emsp;<a href="{% url 'authors' %}">Authors</li>
+
+    </ul>
+  </nav>
+{% endblock %}

bookshelf/templates/bookshelf/books_details.html

+{% extends 'bookshelf/base.html' %}
+
+{% block content %}
+    <h1>{{ book.title }}</h1>
+    <p><a href="{% url 'author_details' book.author.pk %}">{{ book.author }}</a></p>
+    <p>{{ book.publisher }}</p>
+    <p>{{ book.year_published }}</p>
+    <p>{{ book.ISBN }}</p>
+    <p>{{ book.blurb }}</p>
+{% endblock %}
+
+{% block sidebar %}
+    <h3>Navigation</h3>
+    <ul>
+        <li><a href="{% url 'home' %}">Home</a></li>
+        <li><a href="{% url 'books' %}">Books</a></li>
+        <li><a href="{% url 'authors' %}">Authors</a></li>
+    </ul>
+{% endblock %}

bookshelf/templates/bookshelf/home.html

+{% extends 'bookshelf/base.html' %}
+
+{% block title %}My Favorite Books & Authors{% endblock %}
+
+{% block content %}
+  <h1>Welcome to Pao's Database of Favorite Books and Authors!</h1>
+  <p>Greetings and a warm welcome to my Books Database! As an avid reader, I have a great passion for the fantasy genre, particularly works by literary titans such as J.K. Rowling and Rick Riordan.</p>
+  <ul>
+    <li><a href="{% url 'books' %}">Books</a> &emsp; <a href="{% url 'authors' %}">Authors</a></li>
+
+  </ul>
+{% endblock %}

bookshelf/tests.py

+from django.test import TestCase
+
+# Create your tests here.

bookshelf/urls.py

+from django.urls import path
+from . import views
+
+urlpatterns = [
+    path('', views.home, name='home'),
+    path('books/', views.BookListView.as_view(), name='books'),
+    path('books/<int:pk>/details/', views.BookDetailView.as_view(), name='book_details'),
+    path('authors/', views.AuthorListView.as_view(), name='authors'),
+    path('authors/<int:pk>/', views.AuthorDetailView.as_view(), name='author_details'),
+]

bookshelf/views.py

+from django.shortcuts import render
+from django.views.generic import ListView, DetailView
+from .models import Books, Author
+
+class BookListView(ListView):
+    model = Books
+    template_name = 'bookshelf/books.html'
+    context_object_name = 'books'
+
+class BookDetailView(DetailView):
+    model = Books
+    template_name = 'bookshelf/books_details.html'
+    context_object_name = 'book'
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['book'] = self.get_object()
+        return context
+
+class AuthorListView(ListView):
+    model = Author
+    template_name = 'bookshelf/authors.html'
+    context_object_name = 'authors'
+
+class AuthorDetailView(DetailView):
+    model = Author
+    template_name = 'bookshelf/author_details.html'
+    context_object_name = 'author'
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['author'] = self.get_object()
+        return context
+
+def home(request):
+    context = {
+        'title': 'My Favorite Books & Authors',
+        'heading': "Welcome to Pao's Database of Favorite Books and Authors!",
+        'description': 'I Love Fantasy Books!',
+        'books_link': 'books/',
+        'authors_link': 'authors/'
+    }
+    return render(request, 'bookshelf/home.html', context=context)