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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
|
from django.contrib.auth.models import User
from django.db import models
class Animal(models.Model):
name = models.CharField(max_length=150)
latin_name = models.CharField(max_length=150)
count = models.IntegerField()
weight = models.FloatField()
# use a non-default name for the default manager
specimens = models.Manager()
def __str__(self):
return self.name
class Plant(models.Model):
name = models.CharField(max_length=150)
class Meta:
# For testing when upper case letter in app name; regression for #4057
db_table = "Fixtures_regress_plant"
class Stuff(models.Model):
name = models.CharField(max_length=20, null=True)
owner = models.ForeignKey(User, models.SET_NULL, null=True)
def __str__(self):
return self.name + " is owned by " + str(self.owner)
class Absolute(models.Model):
name = models.CharField(max_length=40)
class Parent(models.Model):
name = models.CharField(max_length=10)
class Meta:
ordering = ("id",)
class Child(Parent):
data = models.CharField(max_length=10)
# Models to regression test #7572, #20820
class Channel(models.Model):
name = models.CharField(max_length=255)
class Article(models.Model):
title = models.CharField(max_length=255)
channels = models.ManyToManyField(Channel)
class Meta:
ordering = ("id",)
# Subclass of a model with a ManyToManyField for test_ticket_20820
class SpecialArticle(Article):
pass
# Models to regression test #22421
class CommonFeature(Article):
class Meta:
abstract = True
class Feature(CommonFeature):
pass
# Models to regression test #11428
class Widget(models.Model):
name = models.CharField(max_length=255)
class Meta:
ordering = ("name",)
def __str__(self):
return self.name
class WidgetProxy(Widget):
class Meta:
proxy = True
# Check for forward references in FKs and M2Ms with natural keys
class TestManager(models.Manager):
def get_by_natural_key(self, key):
return self.get(name=key)
class Store(models.Model):
name = models.CharField(max_length=255, unique=True)
main = models.ForeignKey("self", models.SET_NULL, null=True)
objects = TestManager()
class Meta:
ordering = ("name",)
def __str__(self):
return self.name
def natural_key(self):
return (self.name,)
class Person(models.Model):
name = models.CharField(max_length=255, unique=True)
objects = TestManager()
class Meta:
ordering = ("name",)
def __str__(self):
return self.name
# Person doesn't actually have a dependency on store, but we need to define
# one to test the behavior of the dependency resolution algorithm.
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.store"]
class Book(models.Model):
name = models.CharField(max_length=255)
author = models.ForeignKey(Person, models.CASCADE)
stores = models.ManyToManyField(Store)
class Meta:
ordering = ("name",)
def __str__(self):
return "%s by %s (available at %s)" % (
self.name,
self.author.name,
", ".join(s.name for s in self.stores.all()),
)
class NaturalKeyWithFKDependencyManager(models.Manager):
def get_by_natural_key(self, name, author):
return self.get(name=name, author__name=author)
class NaturalKeyWithFKDependency(models.Model):
name = models.CharField(max_length=255)
author = models.ForeignKey(Person, models.CASCADE)
objects = NaturalKeyWithFKDependencyManager()
class Meta:
unique_together = ["name", "author"]
def natural_key(self):
return (self.name,) + self.author.natural_key()
natural_key.dependencies = ["fixtures_regress.Person"]
class NKManager(models.Manager):
def get_by_natural_key(self, data):
return self.get(data=data)
class NKChild(Parent):
data = models.CharField(max_length=10, unique=True)
objects = NKManager()
def natural_key(self):
return (self.data,)
def __str__(self):
return "NKChild %s:%s" % (self.name, self.data)
class RefToNKChild(models.Model):
text = models.CharField(max_length=10)
nk_fk = models.ForeignKey(NKChild, models.CASCADE, related_name="ref_fks")
nk_m2m = models.ManyToManyField(NKChild, related_name="ref_m2ms")
def __str__(self):
return "%s: Reference to %s [%s]" % (
self.text,
self.nk_fk,
", ".join(str(o) for o in self.nk_m2m.all()),
)
# ome models with pathological circular dependencies
class Circle1(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle2"]
class Circle2(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle1"]
class Circle3(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle3"]
class Circle4(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle5"]
class Circle5(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle6"]
class Circle6(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.circle4"]
class ExternalDependency(models.Model):
name = models.CharField(max_length=255, unique=True)
def natural_key(self):
return (self.name,)
natural_key.dependencies = ["fixtures_regress.book"]
# Model for regression test of #11101
class Thingy(models.Model):
name = models.CharField(max_length=255)
class M2MToSelf(models.Model):
parent = models.ManyToManyField("self", blank=True)
class BaseNKModel(models.Model):
"""
Base model with a natural_key and a manager with `get_by_natural_key`
"""
data = models.CharField(max_length=20, unique=True)
objects = NKManager()
class Meta:
abstract = True
def __str__(self):
return self.data
def natural_key(self):
return (self.data,)
class M2MSimpleA(BaseNKModel):
b_set = models.ManyToManyField("M2MSimpleB")
class M2MSimpleB(BaseNKModel):
pass
class M2MSimpleCircularA(BaseNKModel):
b_set = models.ManyToManyField("M2MSimpleCircularB")
class M2MSimpleCircularB(BaseNKModel):
a_set = models.ManyToManyField("M2MSimpleCircularA")
class M2MComplexA(BaseNKModel):
b_set = models.ManyToManyField("M2MComplexB", through="M2MThroughAB")
class M2MComplexB(BaseNKModel):
pass
class M2MThroughAB(BaseNKModel):
a = models.ForeignKey(M2MComplexA, models.CASCADE)
b = models.ForeignKey(M2MComplexB, models.CASCADE)
class M2MComplexCircular1A(BaseNKModel):
b_set = models.ManyToManyField(
"M2MComplexCircular1B", through="M2MCircular1ThroughAB"
)
class M2MComplexCircular1B(BaseNKModel):
c_set = models.ManyToManyField(
"M2MComplexCircular1C", through="M2MCircular1ThroughBC"
)
class M2MComplexCircular1C(BaseNKModel):
a_set = models.ManyToManyField(
"M2MComplexCircular1A", through="M2MCircular1ThroughCA"
)
class M2MCircular1ThroughAB(BaseNKModel):
a = models.ForeignKey(M2MComplexCircular1A, models.CASCADE)
b = models.ForeignKey(M2MComplexCircular1B, models.CASCADE)
class M2MCircular1ThroughBC(BaseNKModel):
b = models.ForeignKey(M2MComplexCircular1B, models.CASCADE)
c = models.ForeignKey(M2MComplexCircular1C, models.CASCADE)
class M2MCircular1ThroughCA(BaseNKModel):
c = models.ForeignKey(M2MComplexCircular1C, models.CASCADE)
a = models.ForeignKey(M2MComplexCircular1A, models.CASCADE)
class M2MComplexCircular2A(BaseNKModel):
b_set = models.ManyToManyField(
"M2MComplexCircular2B", through="M2MCircular2ThroughAB"
)
class M2MComplexCircular2B(BaseNKModel):
def natural_key(self):
return (self.data,)
# Fake the dependency for a circularity
natural_key.dependencies = ["fixtures_regress.M2MComplexCircular2A"]
class M2MCircular2ThroughAB(BaseNKModel):
a = models.ForeignKey(M2MComplexCircular2A, models.CASCADE)
b = models.ForeignKey(M2MComplexCircular2B, models.CASCADE)
|
