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from django.db import models
class Author(models.Model):
first_name = models.CharField(max_length=128)
last_name = models.CharField(max_length=128)
class Editor(models.Model):
name = models.CharField(max_length=128)
bestselling_author = models.ForeignKey(Author, models.CASCADE)
class Book(models.Model):
title = models.CharField(max_length=128)
authors = models.ManyToManyField(Author)
editor = models.ForeignKey(Editor, models.CASCADE, related_name="edited_books")
class Meta:
default_related_name = "books"
class Store(models.Model):
name = models.CharField(max_length=128)
address = models.CharField(max_length=128)
class Meta:
abstract = True
default_related_name = "%(app_label)s_%(model_name)ss"
class BookStore(Store):
available_books = models.ManyToManyField(Book)
class EditorStore(Store):
editor = models.ForeignKey(Editor, models.CASCADE)
available_books = models.ManyToManyField(Book)
class Meta:
default_related_name = "editor_stores"
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