django1/tests/regressiontests/model_fields/models.py

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import os
import tempfile
try:
import decimal
except ImportError:
from django.utils import _decimal as decimal # Python 2.3 fallback
# Try to import PIL in either of the two ways it can end up installed.
# Checking for the existence of Image is enough for CPython, but for PyPy,
# you need to check for the underlying modules.
try:
from PIL import Image, _imaging
except ImportError:
try:
import Image, _imaging
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
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)
class BigD(models.Model):
d = models.DecimalField(max_digits=38, decimal_places=30)
class BigS(models.Model):
s = models.SlugField(max_length=255)
class BigInt(models.Model):
value = models.BigIntegerField()
null_value = models.BigIntegerField(null = True, blank = True)
class Post(models.Model):
title = models.CharField(max_length=100)
body = models.TextField()
###############################################################################
# ImageField
# If PIL 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()
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 PersonWithHeight(models.Model):
"""
Model that defines an ImageField with only one dimension field.
"""
name = models.CharField(max_length=50)
mugshot = TestImageField(storage=temp_storage, upload_to='tests',
height_field='mugshot_height')
mugshot_height = models.PositiveSmallIntegerField()
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')
###############################################################################