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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis/
#
# Copyright the Hypothesis Authors.
# Individual contributors are listed in AUTHORS.rst and the git log.
#
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at https://mozilla.org/MPL/2.0/.
import django
from django.core.exceptions import ValidationError
from django.core.validators import MinValueValidator
from django.db import models
class Company(models.Model):
name = models.CharField(max_length=100, unique=True)
class Store(models.Model):
name = models.CharField(max_length=100, unique=True)
company = models.ForeignKey(Company, null=False, on_delete=models.CASCADE)
class Car(models.Model):
# See https://github.com/HypothesisWorks/hypothesis/issues/2369
model = models.CharField(max_length=100, unique=True)
class CharmField(models.Field):
def db_type(self, connection):
return "char(1)"
class CustomishField(models.Field):
def db_type(self, connection):
return "char(1)"
class Customish(models.Model):
customish = CustomishField()
class Customer(models.Model):
name = models.CharField(max_length=100, unique=True)
email = models.EmailField(max_length=100, unique=True)
gender = models.CharField(max_length=50, null=True) # noqa # avoid nullable strs
age = models.IntegerField()
birthday = models.DateTimeField()
class Charming(models.Model):
charm = CharmField()
class CouldBeCharming(models.Model):
charm = CharmField(null=True)
class SelfLoop(models.Model):
me = models.ForeignKey("self", null=True, on_delete=models.SET_NULL)
class LoopA(models.Model):
b = models.ForeignKey("LoopB", null=False, on_delete=models.CASCADE)
class LoopB(models.Model):
a = models.ForeignKey("LoopA", null=True, on_delete=models.SET_NULL)
class ManyNumerics(models.Model):
i1 = models.IntegerField()
i2 = models.SmallIntegerField()
i3 = models.BigIntegerField()
p1 = models.PositiveIntegerField()
p2 = models.PositiveSmallIntegerField()
d = models.DecimalField(decimal_places=2, max_digits=5)
class ManyTimes(models.Model):
time = models.TimeField()
date = models.DateField()
duration = models.DurationField()
class OddFields(models.Model):
uuid = models.UUIDField()
slug = models.SlugField()
url = models.URLField()
ipv4 = models.GenericIPAddressField(protocol="IPv4")
ipv6 = models.GenericIPAddressField(protocol="IPv6")
class CustomishDefault(models.Model):
customish = CustomishField(default="b")
class MandatoryComputed(models.Model):
name = models.CharField(max_length=100, unique=True)
company = models.ForeignKey(Company, null=False, on_delete=models.CASCADE)
def __init__(self, **kw):
if "company" in kw:
raise RuntimeError
cname = kw["name"] + "_company"
kw["company"] = Company.objects.create(name=cname)
super().__init__(**kw)
def validate_even(value):
if value % 2 != 0:
raise ValidationError("")
class RestrictedFields(models.Model):
text_field_4 = models.TextField(max_length=4, blank=True)
char_field_4 = models.CharField(max_length=4, blank=True)
choice_field_text = models.TextField(choices=(("foo", "Foo"), ("bar", "Bar")))
choice_field_int = models.IntegerField(choices=((1, "First"), (2, "Second")))
null_choice_field_int = models.IntegerField(
choices=((1, "First"), (2, "Second")), null=True, blank=True
)
choice_field_grouped = models.TextField(
choices=(
("Audio", (("vinyl", "Vinyl"), ("cd", "CD"))),
("Video", (("vhs", "VHS Tape"), ("dvd", "DVD"))),
("unknown", "Unknown"),
)
)
even_number_field = models.IntegerField(validators=[validate_even])
non_blank_text_field = models.TextField(blank=False)
class SelfModifyingField(models.IntegerField):
def pre_save(self, model_instance, add):
value = getattr(model_instance, self.attname)
value += 1
setattr(model_instance, self.attname, value)
return value
class CompanyExtension(models.Model):
company = models.OneToOneField(Company, primary_key=True, on_delete=models.CASCADE)
self_modifying = SelfModifyingField()
class UserSpecifiedAutoId(models.Model):
my_id = models.AutoField(primary_key=True)
if django.VERSION >= (5, 0, 0):
import math
class Pizza(models.Model):
AREA = math.pi * models.F("radius") ** 2
radius = models.IntegerField(validators=[MinValueValidator(1)])
slices = models.PositiveIntegerField(validators=[MinValueValidator(2)])
total_area = models.GeneratedField(
expression=AREA,
output_field=models.FloatField(),
db_persist=True,
)
slice_area = models.GeneratedField(
expression=AREA / models.F("slices"),
output_field=models.FloatField(),
db_persist=False,
)
|
