edited models.py

jakhermosisima_reading/bookshelf/models.py

 from django.db import models
+from django.urls import reverse
 
 # Create your models here.
+
+class Author(models.Model):
+    def __str__(self) -> str:
+        return self.first_name+' '+self.last_name
+
+    def get_absolute_url(self):
+        return reverse('bookshelf:authoritem', kwargs={'pk':self.pk})
+        
+    first_name = models.CharField(max_length=50)
+    last_name = models.CharField(max_length=50)
+    age = models.IntegerField(default=0)
+    nationality = models.CharField(max_length=50)
+    bio = models.CharField(max_length=700)
+
+class Book(models.Model):
+    def __str__(self) -> str:
+        return self.title
+
+    def get_absolute_url(self):
+        return reverse('bookshelf:bookitem', kwargs={'pk': self.pk})
+
+    title = models.CharField(max_length=50)
+    author = models.ForeignKey(Author, on_delete=models.CASCADE)
+    publisher = models.CharField(max_length=50)
+    year_published = models.CharField(max_length=50)
+    ISBN = models.IntegerField(default=0)
+    blurb = models.TextField()
+