Add models and registered in admin

garethcastillo_reading/bookshelf/admin.py

 from django.contrib import admin
 
-# Register your models here.
+from .models import Author, Books
+
+class AuthorAdmin(admin.ModelAdmin):
+    model = Author
+
+    list_display = ('first_name', 'last_name', 'age', 'nationality',)
+
+
+class BooksAdmin(admin.ModelAdmin):
+    model = Books
+
+    list_display = ('title', 'author', 'publisher', 'year_published', 'isbn',)
+
+admin.site.register(Author, AuthorAdmin)
+admin.site.register(Books, BooksAdmin)
\ No newline at end of file

garethcastillo_reading/bookshelf/migrations/0001_initial.py

+# Generated by Django 4.1.6 on 2023-03-28 11:01
+
+import django.core.validators
+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(default='', max_length=200)),
+                ('last_name', models.CharField(default='', max_length=200)),
+                ('age', models.IntegerField(default=0)),
+                ('nationality', models.CharField(default='', max_length=200)),
+                ('bio', models.TextField(default='', 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(default='', max_length=200)),
+                ('publisher', models.CharField(default='', max_length=200)),
+                ('year_published', models.IntegerField(default=2023, validators=[django.core.validators.MaxValueValidator(2023)])),
+                ('isbn', models.IntegerField(default=0, validators=[django.core.validators.MinValueValidator(1), django.core.validators.MaxValueValidator(9999999999999)])),
+                ('blurb', models.TextField(default='', max_length=200)),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='bookshelf.author')),
+            ],
+        ),
+    ]

garethcastillo_reading/bookshelf/models.py

 from django.db import models
+from django.core.validators import MinValueValidator, MaxValueValidator
+import datetime
 
-# Create your models here.
+class Author(models.Model):
+    default_string = ""
+    first_name = models.CharField(max_length = 200, default = default_string)
+    last_name = models.CharField(max_length = 200, default = default_string)
+    age = models.IntegerField(default = 0)
+    nationality = models.CharField(max_length = 200, default = default_string)
+    bio = models.TextField(max_length = 700, default = default_string)
+
+    def __str__(self):
+        return '{} {}'.format(self.first_name, self.last_name)
+
+class Books(models.Model):
+    default_string = ""
+    title = models.CharField(max_length = 200, default = default_string)
+    author = models.ForeignKey(Author, on_delete = models.PROTECT)
+    publisher = models.CharField(max_length = 200, default = default_string)
+    year_published = models.IntegerField(validators = [MaxValueValidator(datetime.datetime.now().year)], default = datetime.datetime.now().year)
+    isbn = models.IntegerField(validators = [MinValueValidator(1), MaxValueValidator(9999999999999)], default = 0)
+    blurb = models.TextField(max_length = 200, default = default_string)
+
+    def __str__(self):
+        return '{}'.format(self.title)

garethcastillo_reading/bookshelf/urls.py

+from django.urls import path
+from .views import index
+
+urlpatterns = [
+    path('', index, name='index'),
+]
+
+app_name = "bookshelf"
\ No newline at end of file

garethcastillo_reading/bookshelf/views.py

-from django.shortcuts import render
+from django.http import HttpResponse
 
-# Create your views here.
+def index(request):
+    return HttpResponse("Welcome to Gareth's Music Library!")
\ No newline at end of file

garethcastillo_reading/garethcastillo_reading/urls.py

@@ -14,8 +14,9 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import include, path
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('Bookshelf/', include('bookshelf.urls', namespace = 'Bookshelf'))
 ]