django/tests/model_fields/models.py

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import os
import tempfile
import uuid
import warnings
try:
from PIL import Image
except ImportError:
Image = None
from django.core.files.storage import FileSystemStorage
from django.db import models
from django.db.models.fields.files import ImageFieldFile, ImageField
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from django.utils import six
class Foo(models.Model):
a = models.CharField(max_length=10)
d = models.DecimalField(max_digits=5, decimal_places=3)
def get_foo():
return Foo.objects.get(id=1)
class Bar(models.Model):
b = models.CharField(max_length=10)
a = models.ForeignKey(Foo, default=get_foo)
class Whiz(models.Model):
CHOICES = (
('Group 1', (
(1, 'First'),
(2, 'Second'),
)
),
('Group 2', (
(3, 'Third'),
(4, 'Fourth'),
)
),
(0, 'Other'),
)
c = models.IntegerField(choices=CHOICES, null=True)
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class Counter(six.Iterator):
def __init__(self):
self.n = 1
def __iter__(self):
return self
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def __next__(self):
if self.n > 5:
raise StopIteration
else:
self.n += 1
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return (self.n, 'val-' + str(self.n))
class WhizIter(models.Model):
c = models.IntegerField(choices=Counter(), null=True)
class WhizIterEmpty(models.Model):
c = models.CharField(choices=(x for x in []), blank=True, max_length=1)
class BigD(models.Model):
d = models.DecimalField(max_digits=38, decimal_places=30)
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class FloatModel(models.Model):
size = models.FloatField()
class BigS(models.Model):
s = models.SlugField(max_length=255)
class SmallIntegerModel(models.Model):
value = models.SmallIntegerField()
class IntegerModel(models.Model):
value = models.IntegerField()
class BigIntegerModel(models.Model):
value = models.BigIntegerField()
null_value = models.BigIntegerField(null=True, blank=True)
class PositiveSmallIntegerModel(models.Model):
value = models.PositiveSmallIntegerField()
class PositiveIntegerModel(models.Model):
value = models.PositiveIntegerField()
class Post(models.Model):
title = models.CharField(max_length=100)
body = models.TextField()
class NullBooleanModel(models.Model):
nbfield = models.NullBooleanField()
class BooleanModel(models.Model):
bfield = models.BooleanField(default=None)
string = models.CharField(max_length=10, default='abc')
class DateTimeModel(models.Model):
d = models.DateField()
dt = models.DateTimeField()
t = models.TimeField()
class PrimaryKeyCharModel(models.Model):
string = models.CharField(max_length=10, primary_key=True)
class FksToBooleans(models.Model):
"""Model with FKs to models with {Null,}BooleanField's, #15040"""
bf = models.ForeignKey(BooleanModel)
nbf = models.ForeignKey(NullBooleanModel)
class FkToChar(models.Model):
"""Model with FK to a model with a CharField primary key, #19299"""
out = models.ForeignKey(PrimaryKeyCharModel)
class RenamedField(models.Model):
modelname = models.IntegerField(name="fieldname", choices=((1, 'One'),))
class VerboseNameField(models.Model):
id = models.AutoField("verbose pk", primary_key=True)
field1 = models.BigIntegerField("verbose field1")
field2 = models.BooleanField("verbose field2", default=False)
field3 = models.CharField("verbose field3", max_length=10)
field4 = models.CommaSeparatedIntegerField("verbose field4", max_length=99)
field5 = models.DateField("verbose field5")
field6 = models.DateTimeField("verbose field6")
field7 = models.DecimalField("verbose field7", max_digits=6, decimal_places=1)
field8 = models.EmailField("verbose field8")
field9 = models.FileField("verbose field9", upload_to="unused")
field10 = models.FilePathField("verbose field10")
field11 = models.FloatField("verbose field11")
# Don't want to depend on Pillow in this test
#field_image = models.ImageField("verbose field")
field12 = models.IntegerField("verbose field12")
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
field13 = models.IPAddressField("verbose field13")
field14 = models.GenericIPAddressField("verbose field14", protocol="ipv4")
field15 = models.NullBooleanField("verbose field15")
field16 = models.PositiveIntegerField("verbose field16")
field17 = models.PositiveSmallIntegerField("verbose field17")
field18 = models.SlugField("verbose field18")
field19 = models.SmallIntegerField("verbose field19")
field20 = models.TextField("verbose field20")
field21 = models.TimeField("verbose field21")
field22 = models.URLField("verbose field22")
###############################################################################
# These models aren't used in any test, just here to ensure they validate
# successfully.
# See ticket #16570.
class DecimalLessThanOne(models.Model):
d = models.DecimalField(max_digits=3, decimal_places=3)
# See ticket #18389.
class FieldClassAttributeModel(models.Model):
field_class = models.CharField
###############################################################################
class DataModel(models.Model):
short_data = models.BinaryField(max_length=10, default=b'\x08')
data = models.BinaryField()
###############################################################################
# FileField
class Document(models.Model):
myfile = models.FileField(upload_to='unused')
###############################################################################
# ImageField
# If Pillow available, do these tests.
if Image:
class TestImageFieldFile(ImageFieldFile):
"""
Custom Field File class that records whether or not the underlying file
was opened.
"""
def __init__(self, *args, **kwargs):
self.was_opened = False
super(TestImageFieldFile, self).__init__(*args, **kwargs)
def open(self):
self.was_opened = True
super(TestImageFieldFile, self).open()
class TestImageField(ImageField):
attr_class = TestImageFieldFile
# Set up a temp directory for file storage.
temp_storage_dir = tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
temp_storage = FileSystemStorage(temp_storage_dir)
temp_upload_to_dir = os.path.join(temp_storage.location, 'tests')
class Person(models.Model):
"""
Model that defines an ImageField with no dimension fields.
"""
name = models.CharField(max_length=50)
mugshot = TestImageField(storage=temp_storage, upload_to='tests')
class AbsctractPersonWithHeight(models.Model):
"""
Abstract model that defines an ImageField with only one dimension field
to make sure the dimension update is correctly run on concrete subclass
instance post-initialization.
"""
mugshot = TestImageField(storage=temp_storage, upload_to='tests',
height_field='mugshot_height')
mugshot_height = models.PositiveSmallIntegerField()
class Meta:
abstract = True
class PersonWithHeight(AbsctractPersonWithHeight):
"""
Concrete model that subclass an abctract one with only on dimension
field.
"""
name = models.CharField(max_length=50)
class PersonWithHeightAndWidth(models.Model):
"""
Model that defines height and width fields after the ImageField.
"""
name = models.CharField(max_length=50)
mugshot = TestImageField(storage=temp_storage, upload_to='tests',
height_field='mugshot_height',
width_field='mugshot_width')
mugshot_height = models.PositiveSmallIntegerField()
mugshot_width = models.PositiveSmallIntegerField()
class PersonDimensionsFirst(models.Model):
"""
Model that defines height and width fields before the ImageField.
"""
name = models.CharField(max_length=50)
mugshot_height = models.PositiveSmallIntegerField()
mugshot_width = models.PositiveSmallIntegerField()
mugshot = TestImageField(storage=temp_storage, upload_to='tests',
height_field='mugshot_height',
width_field='mugshot_width')
class PersonTwoImages(models.Model):
"""
Model that:
* Defines two ImageFields
* Defines the height/width fields before the ImageFields
* Has a nullalble ImageField
"""
name = models.CharField(max_length=50)
mugshot_height = models.PositiveSmallIntegerField()
mugshot_width = models.PositiveSmallIntegerField()
mugshot = TestImageField(storage=temp_storage, upload_to='tests',
height_field='mugshot_height',
width_field='mugshot_width')
headshot_height = models.PositiveSmallIntegerField(
blank=True, null=True)
headshot_width = models.PositiveSmallIntegerField(
blank=True, null=True)
headshot = TestImageField(blank=True, null=True,
storage=temp_storage, upload_to='tests',
height_field='headshot_height',
width_field='headshot_width')
###############################################################################
class UUIDModel(models.Model):
field = models.UUIDField()
class NullableUUIDModel(models.Model):
field = models.UUIDField(blank=True, null=True)
class PrimaryKeyUUIDModel(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4)