Added models and initialized admin panel

joeiyucoco_reading/bookshelf/admin.py

 from django.contrib import admin
+from .models import Author, Books
+
+class AuthorAdmin(admin.ModelAdmin):
+    model = Author
+
+class BooksAdmin(admin.ModelAdmin):
+    model = Books
+
+admin.site.register(Author, AuthorAdmin)
+admin.site.register(Books, BooksAdmin)
 
 # Register your models here.

joeiyucoco_reading/bookshelf/migrations/0001_initial.py

+# Generated by Django 3.2 on 2023-03-27 07:59
+
+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.TextField(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)),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='bookshelf.author')),
+            ],
+        ),
+    ]

joeiyucoco_reading/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.TextField(max_length=700)
+
+    def __str__(self):
+        return '{} {}'.format(self.first_name, self.last_name)
+
+class Books(models.Model):
+    title = models.CharField(max_length=100)
+    author = models.ForeignKey(Author, on_delete=models.CASCADE)
+    publisher = models.CharField(max_length=100)
+    year_published = models.IntegerField()
+    ISBN = models.CharField(max_length=13)
+    
 # Create your models here.