1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
import os
import tempfile
# 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()
class NullBooleanModel(models.Model):
nbfield = models.NullBooleanField()
class BooleanModel(models.Model):
bfield = models.BooleanField()
string = models.CharField(max_length=10, default='abc')
###############################################################################
# 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')
###############################################################################
|
