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import datetime
import unittest
from django.apps.registry import Apps
from django.core.exceptions import ValidationError
from django.db import models
from django.test import TestCase
from .models import (
CustomPKModel,
FlexibleDatePost,
ModelToValidate,
Post,
UniqueErrorsModel,
UniqueFieldsModel,
UniqueForDateModel,
UniqueFuncConstraintModel,
UniqueTogetherModel,
)
class GetUniqueCheckTests(unittest.TestCase):
def test_unique_fields_get_collected(self):
m = UniqueFieldsModel()
self.assertEqual(
(
[
(UniqueFieldsModel, ("id",)),
(UniqueFieldsModel, ("unique_charfield",)),
(UniqueFieldsModel, ("unique_integerfield",)),
],
[],
),
m._get_unique_checks(),
)
def test_unique_together_gets_picked_up_and_converted_to_tuple(self):
m = UniqueTogetherModel()
self.assertEqual(
(
[
(UniqueTogetherModel, ("ifield", "cfield")),
(UniqueTogetherModel, ("ifield", "efield")),
(UniqueTogetherModel, ("id",)),
],
[],
),
m._get_unique_checks(),
)
def test_unique_together_normalization(self):
"""
Test the Meta.unique_together normalization with different sorts of
objects.
"""
data = {
"2-tuple": (("foo", "bar"), (("foo", "bar"),)),
"list": (["foo", "bar"], (("foo", "bar"),)),
"already normalized": (
(("foo", "bar"), ("bar", "baz")),
(("foo", "bar"), ("bar", "baz")),
),
"set": (
{("foo", "bar"), ("bar", "baz")}, # Ref #21469
(("foo", "bar"), ("bar", "baz")),
),
}
for unique_together, normalized in data.values():
class M(models.Model):
foo = models.IntegerField()
bar = models.IntegerField()
baz = models.IntegerField()
Meta = type(
"Meta", (), {"unique_together": unique_together, "apps": Apps()}
)
checks, _ = M()._get_unique_checks()
for t in normalized:
check = (M, t)
self.assertIn(check, checks)
def test_primary_key_is_considered_unique(self):
m = CustomPKModel()
self.assertEqual(
([(CustomPKModel, ("my_pk_field",))], []), m._get_unique_checks()
)
def test_unique_for_date_gets_picked_up(self):
m = UniqueForDateModel()
self.assertEqual(
(
[(UniqueForDateModel, ("id",))],
[
(UniqueForDateModel, "date", "count", "start_date"),
(UniqueForDateModel, "year", "count", "end_date"),
(UniqueForDateModel, "month", "order", "end_date"),
],
),
m._get_unique_checks(),
)
def test_unique_for_date_exclusion(self):
m = UniqueForDateModel()
self.assertEqual(
(
[(UniqueForDateModel, ("id",))],
[
(UniqueForDateModel, "year", "count", "end_date"),
(UniqueForDateModel, "month", "order", "end_date"),
],
),
m._get_unique_checks(exclude="start_date"),
)
def test_func_unique_constraint_ignored(self):
m = UniqueFuncConstraintModel()
self.assertEqual(
m._get_unique_checks(),
([(UniqueFuncConstraintModel, ("id",))], []),
)
class PerformUniqueChecksTest(TestCase):
def test_primary_key_unique_check_not_performed_when_adding_and_pk_not_specified(
self,
):
# Regression test for #12560
with self.assertNumQueries(0):
mtv = ModelToValidate(number=10, name="Some Name")
setattr(mtv, "_adding", True)
mtv.full_clean()
def test_primary_key_unique_check_performed_when_adding_and_pk_specified(self):
# Regression test for #12560
with self.assertNumQueries(1):
mtv = ModelToValidate(number=10, name="Some Name", id=123)
setattr(mtv, "_adding", True)
mtv.full_clean()
def test_primary_key_unique_check_not_performed_when_not_adding(self):
# Regression test for #12132
with self.assertNumQueries(0):
mtv = ModelToValidate(number=10, name="Some Name")
mtv.full_clean()
def test_unique_db_default(self):
UniqueFieldsModel.objects.create(unique_charfield="foo", non_unique_field=42)
um = UniqueFieldsModel(unique_charfield="bar", non_unique_field=42)
with self.assertRaises(ValidationError) as cm:
um.full_clean()
self.assertEqual(
cm.exception.message_dict,
{
"unique_integerfield": [
"Unique fields model with this Unique integerfield already exists."
]
},
)
def test_unique_for_date(self):
Post.objects.create(
title="Django 1.0 is released",
slug="Django 1.0",
subtitle="Finally",
posted=datetime.date(2008, 9, 3),
)
p = Post(title="Django 1.0 is released", posted=datetime.date(2008, 9, 3))
with self.assertRaises(ValidationError) as cm:
p.full_clean()
self.assertEqual(
cm.exception.message_dict,
{"title": ["Title must be unique for Posted date."]},
)
# Should work without errors
p = Post(title="Work on Django 1.1 begins", posted=datetime.date(2008, 9, 3))
p.full_clean()
# Should work without errors
p = Post(title="Django 1.0 is released", posted=datetime.datetime(2008, 9, 4))
p.full_clean()
p = Post(slug="Django 1.0", posted=datetime.datetime(2008, 1, 1))
with self.assertRaises(ValidationError) as cm:
p.full_clean()
self.assertEqual(
cm.exception.message_dict,
{"slug": ["Slug must be unique for Posted year."]},
)
p = Post(subtitle="Finally", posted=datetime.datetime(2008, 9, 30))
with self.assertRaises(ValidationError) as cm:
p.full_clean()
self.assertEqual(
cm.exception.message_dict,
{"subtitle": ["Subtitle must be unique for Posted month."]},
)
p = Post(title="Django 1.0 is released")
with self.assertRaises(ValidationError) as cm:
p.full_clean()
self.assertEqual(
cm.exception.message_dict, {"posted": ["This field cannot be null."]}
)
def test_unique_for_date_with_nullable_date(self):
"""
unique_for_date/year/month checks shouldn't trigger when the
associated DateField is None.
"""
FlexibleDatePost.objects.create(
title="Django 1.0 is released",
slug="Django 1.0",
subtitle="Finally",
posted=datetime.date(2008, 9, 3),
)
p = FlexibleDatePost(title="Django 1.0 is released")
p.full_clean()
p = FlexibleDatePost(slug="Django 1.0")
p.full_clean()
p = FlexibleDatePost(subtitle="Finally")
p.full_clean()
def test_unique_errors(self):
UniqueErrorsModel.objects.create(name="Some Name", no=10)
m = UniqueErrorsModel(name="Some Name", no=11)
with self.assertRaises(ValidationError) as cm:
m.full_clean()
self.assertEqual(
cm.exception.message_dict, {"name": ["Custom unique name message."]}
)
m = UniqueErrorsModel(name="Some Other Name", no=10)
with self.assertRaises(ValidationError) as cm:
m.full_clean()
self.assertEqual(
cm.exception.message_dict, {"no": ["Custom unique number message."]}
)
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