fix settings.py error & added paramters to models

janang_reading/bookshelf/models.py

@@ -2,22 +2,22 @@ from django.db import models
 
 # Create your models here.
 class Author(models.Model):
-    first_name = models.CharField()
-    last_name = models.CharField()
-    age = models.IntegerField()
-    nationality = models.CharField()
+    first_name = models.CharField(max_length=50, default="")
+    last_name = models.CharField(max_length=50, default="")
+    age = models.IntegerField(default=0)
+    nationality = models.CharField(max_length=50, default="")
     bio = models.TextField(max_length=700, default="")
 
     def __str__(self):
         return self.first_name + " " + self.last_name
     
 class Books(models.Model):
-    title = models.CharField()
+    title = models.CharField(max_length=50, default="")
     author = models.ForeignKey(Author, on_delete=models.CASCADE)
-    publisher = models.CharField()
-    year_published = models.IntegerField()
-    ISBN = models.IntegerField()
-    blurb = models.TextField()
+    publisher = models.CharField(max_length=50, default="")
+    year_published = models.IntegerField(default=0)
+    ISBN = models.IntegerField(default=0)
+    blurb = models.TextField(default="")
 
     def __str__(self):
         return self.title
\ No newline at end of file

janang_reading/janang_reading/settings.py

@@ -31,7 +31,7 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
-    'bookshelf'
+    'bookshelf',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',