class Person(models.Model):
name = models.CharField(max_length=20)
friends = ArrayManyToManyField('self')
idols = ArrayManyToManyField('self', symmetrical=False, related_name='stalkers')
def __str__(self):
return self.name
class Article(models.Model):
headline = models.CharField(max_length=50)
pub_date = models.DateTimeField()
primary_categories = ArrayManyToManyField(Category, related_name='primary_article_set')
secondary_categories = ArrayManyToManyField(Category, related_name='secondary_article_set')
class Meta:
ordering = ('pub_date',)
def __str__(self):
return self.headline
class AbstractArticle(models.Model):
class Meta:
abstract = True
publications = ArrayManyToManyField(Publication,
name='publications',
related_name='+')
class Book(models.Model):
title = models.CharField(max_length=255)
authors = ArrayManyToManyField(Author, related_name='books')
def __str__(self):
return self.title
class Meta:
ordering = ['id']
class Reader(models.Model):
name = models.CharField(max_length=50)
books_read = ArrayManyToManyField(Book, related_name='read_by')
def __str__(self):
return self.name
class Meta:
ordering = ['id']
class Author2(models.Model):
name = models.CharField(max_length=50, unique=True)
first_book = models.ForeignKey('Book', models.CASCADE, related_name='first_time_authors+')
favorite_books = ArrayManyToManyField('Book', related_name='+')
def __str__(self):
return self.name
class Meta:
ordering = ['id']
class Article(models.Model):
headline = models.CharField(max_length=100)
# Assign a unicode string as name to make sure the intermediary model is
# correctly created. Refs #20207
publications = ArrayManyToManyField(Publication, name='publications')
def __str__(self):
return self.headline
class Meta:
ordering = ('headline',)
class Teacher(models.Model):
name = models.CharField(max_length=50)
qualifications = ArrayManyToManyField(Qualification)
objects = TeacherManager()
def __str__(self):
return "%s (%s)" % (self.name, ", ".join(q.name for q in self.qualifications.all()))
class Meta:
ordering = ['id']
class Person(models.Model):
name = models.CharField(max_length=50)
houses = ArrayManyToManyField(House, related_name='occupants')
@property
def primary_house(self):
# Assume business logic forces every person to have at least one house.
return sorted(self.houses.all(), key=lambda house: -house.rooms.count())[0]
@property
def all_houses(self):
return list(self.houses.all())
class Meta:
ordering = ['id']
class Product(models.Model):
name = models.CharField(max_length=15)
keywords = ArrayField(models.CharField(max_length=20), default=[], form_size=10, blank=True)
sports = ArrayField(models.CharField(max_length=20),default=[], blank=True, choices=(
('football', 'Football'), ('tennis', 'Tennis'), ('golf', 'Golf'), ('basketball', 'Basketball'), ('hurling', 'Hurling'), ('baseball', 'Baseball')))
shipping = HStoreField(keys=('Address', 'City', 'Region', 'Country'), blank=True, default={})
details = JSONField(fields=details_fields, blank=True, default={})
buyers = ArrayManyToManyField(Buyer)
def __str__(self):
return self.name
@property
def country(self):
return self.shipping.get('Country', '')
class Bio(models.Model):
author = models.OneToOneField(Author, models.CASCADE)
books = ArrayManyToManyField(Book, blank=True)
class BookWithYear(Book):
book = models.OneToOneField(Book, models.CASCADE, parent_link=True)
published_year = models.IntegerField()
aged_authors = ArrayManyToManyField(
AuthorWithAge, related_name='books_with_year')
class Flea(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
current_room = models.ForeignKey(Room, models.SET_NULL, related_name='fleas', null=True)
pets_visited = ArrayManyToManyField(Pet, related_name='fleas_hosted')
people_visited = ArrayManyToManyField(Person, related_name='fleas_hosted')
class Pet(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
name = models.CharField(max_length=20)
people = ArrayManyToManyField(Person, related_name='pets')
class Department(models.Model):
name = models.CharField(max_length=50)
teachers = ArrayManyToManyField(Teacher)
class Meta:
ordering = ['id']
class Array(models.Model):
index = models.IntegerField()
numbers = ArrayManyToManyField(NumberArray, db_index=False)
def __str__(self):
return self.index
