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"""
Checks that Pylint does not complain about various
methods on Django model fields.
"""
# pylint: disable=missing-docstring,wrong-import-position
from django.db import models
from django.db.models import ForeignKey, OneToOneField
class Genre(models.Model):
name = models.CharField(max_length=100)
class Author(models.Model):
author_name = models.CharField(max_length=100)
class ISBN(models.Model):
value = models.CharField(max_length=100)
class Book(models.Model):
book_name = models.CharField(max_length=100)
# Check this works with and without `to` keyword
author = models.ForeignKey(to='Author', on_delete=models.CASCADE)
isbn = models.OneToOneField(to=ISBN, on_delete=models.CASCADE)
genre = models.ForeignKey(Genre, on_delete=models.CASCADE)
def get_isbn(self):
return self.isbn.value
def get_author_name(self):
return self.author.author_name
class Fruit(models.Model):
fruit_name = models.CharField(max_length=20)
class Seed(models.Model):
fruit = ForeignKey(to=Fruit, on_delete=models.CASCADE)
def get_fruit_name(self):
return self.fruit.fruit_name
class User(models.Model):
username = models.CharField(max_length=32)
class UserProfile(models.Model):
user = OneToOneField(User, on_delete=models.CASCADE)
def get_username(self):
return self.user.username
class Human(models.Model):
child = ForeignKey('self', on_delete=models.SET_NULL, null=True)
parent = ForeignKey(to='self', on_delete=models.SET_NULL, null=True)
def get_grandchild(self):
return self.child.child
def get_grandparent(self):
return self.parent.parent
class UserPreferences(models.Model):
"""
Used for testing FK which refers to another model by
string, not model class, see
https://github.com/PyCQA/pylint-django/issues/35
"""
user = ForeignKey('User', on_delete=models.CASCADE)
class UserAddress(models.Model):
user = OneToOneField(to='User', on_delete=models.CASCADE)
line_1 = models.CharField(max_length=100)
line_2 = models.CharField(max_length=100)
city = models.CharField(max_length=100)
postal_code = models.CharField(max_length=100)
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