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import uuid
from django.contrib.auth.models import User
from django.db import models
class MyFileField(models.FileField):
pass
class Member(models.Model):
name = models.CharField(max_length=100)
birthdate = models.DateTimeField(blank=True, null=True)
gender = models.CharField(
max_length=1, blank=True, choices=[("M", "Male"), ("F", "Female")]
)
email = models.EmailField(blank=True)
def __str__(self):
return self.name
class Artist(models.Model):
pass
class Band(Artist):
uuid = models.UUIDField(unique=True, default=uuid.uuid4)
name = models.CharField(max_length=100)
style = models.CharField(max_length=20)
members = models.ManyToManyField(Member)
def __str__(self):
return self.name
class UnsafeLimitChoicesTo(models.Model):
band = models.ForeignKey(
Band,
models.CASCADE,
limit_choices_to={"name": '"&><escapeme'},
)
class Album(models.Model):
band = models.ForeignKey(Band, models.CASCADE, to_field="uuid")
featuring = models.ManyToManyField(Band, related_name="featured")
name = models.CharField(max_length=100)
cover_art = models.FileField(upload_to="albums")
backside_art = MyFileField(upload_to="albums_back", null=True)
def __str__(self):
return self.name
class ReleaseEvent(models.Model):
"""
Used to check that autocomplete widget correctly resolves attname for FK as
PK example.
"""
album = models.ForeignKey(Album, models.CASCADE, primary_key=True)
name = models.CharField(max_length=100)
class Meta:
ordering = ["name"]
def __str__(self):
return self.name
class VideoStream(models.Model):
release_event = models.ForeignKey(ReleaseEvent, models.CASCADE)
class HiddenInventoryManager(models.Manager):
def get_queryset(self):
return super().get_queryset().filter(hidden=False)
class Inventory(models.Model):
barcode = models.PositiveIntegerField(unique=True)
parent = models.ForeignKey(
"self", models.SET_NULL, to_field="barcode", blank=True, null=True
)
name = models.CharField(blank=False, max_length=20)
hidden = models.BooleanField(default=False)
# see #9258
default_manager = models.Manager()
objects = HiddenInventoryManager()
def __str__(self):
return self.name
class Event(models.Model):
main_band = models.ForeignKey(
Band,
models.CASCADE,
limit_choices_to=models.Q(pk__gt=0),
related_name="events_main_band_at",
)
supporting_bands = models.ManyToManyField(
Band,
blank=True,
related_name="events_supporting_band_at",
help_text="Supporting Bands.",
)
start_date = models.DateField(blank=True, null=True)
start_time = models.TimeField(blank=True, null=True)
description = models.TextField(blank=True)
link = models.URLField(blank=True)
min_age = models.IntegerField(blank=True, null=True)
class Car(models.Model):
owner = models.ForeignKey(User, models.CASCADE)
make = models.CharField(max_length=30)
model = models.CharField(max_length=30)
def __str__(self):
return "%s %s" % (self.make, self.model)
class CarTire(models.Model):
"""
A single car tire. This to test that a user can only select their own cars.
"""
car = models.ForeignKey(Car, models.CASCADE)
class Honeycomb(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
location = models.CharField(max_length=20)
class Bee(models.Model):
"""
A model with a FK to a model that won't be registered with the admin
(Honeycomb) so the corresponding raw ID widget won't have a magnifying
glass link to select related honeycomb instances.
"""
honeycomb = models.ForeignKey(Honeycomb, models.CASCADE)
class Individual(models.Model):
"""
A model with a FK to itself. It won't be registered with the admin, so the
corresponding raw ID widget won't have a magnifying glass link to select
related instances (rendering will be called programmatically in this case).
"""
name = models.CharField(max_length=20)
parent = models.ForeignKey("self", models.SET_NULL, null=True)
soulmate = models.ForeignKey(
"self", models.CASCADE, null=True, related_name="soulmates"
)
class Company(models.Model):
name = models.CharField(max_length=20)
class Advisor(models.Model):
"""
A model with a m2m to a model that won't be registered with the admin
(Company) so the corresponding raw ID widget won't have a magnifying
glass link to select related company instances.
"""
name = models.CharField(max_length=20)
companies = models.ManyToManyField(Company)
class Student(models.Model):
name = models.CharField(max_length=255)
class Meta:
ordering = ("name",)
def __str__(self):
return self.name
class School(models.Model):
name = models.CharField(max_length=255)
students = models.ManyToManyField(Student, related_name="current_schools")
alumni = models.ManyToManyField(Student, related_name="previous_schools")
def __str__(self):
return self.name
class Profile(models.Model):
user = models.ForeignKey("auth.User", models.CASCADE, to_field="username")
def __str__(self):
return self.user.username
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