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models.py
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models.py
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from django.db import models
from django.db.models.signals import pre_save
from django.utils import timezone as django_timezone
from jsonfield import JSONField as JSONFieldThirdParty
from dirtyfields import DirtyFieldsMixin
from dirtyfields.compare import timezone_support_compare
from tests.utils import is_postgresql_env_with_jsonb_field
class ModelTest(DirtyFieldsMixin, models.Model):
"""A simple test model to test dirty fields mixin with"""
boolean = models.BooleanField(default=True)
characters = models.CharField(blank=True, max_length=80)
class ModelWithDecimalFieldTest(DirtyFieldsMixin, models.Model):
decimal_field = models.DecimalField(decimal_places=2, max_digits=10)
class ModelWithForeignKeyTest(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey(ModelTest, on_delete=models.CASCADE)
class MixedFieldsModelTest(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey(ModelTest, on_delete=models.CASCADE)
characters = models.CharField(blank=True, max_length=80)
class ModelWithOneToOneFieldTest(DirtyFieldsMixin, models.Model):
o2o = models.OneToOneField(ModelTest, on_delete=models.CASCADE)
class ModelWithNonEditableFieldsTest(DirtyFieldsMixin, models.Model):
dt = models.DateTimeField(auto_now_add=True)
characters = models.CharField(blank=True, max_length=80,
editable=False)
boolean = models.BooleanField(default=True)
class ModelWithSelfForeignKeyTest(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey("self", blank=True, null=True, on_delete=models.CASCADE)
class OrdinaryModelTest(models.Model):
boolean = models.BooleanField(default=True)
characters = models.CharField(blank=True, max_length=80)
class OrdinaryModelWithForeignKeyTest(models.Model):
fkey = models.ForeignKey(OrdinaryModelTest, on_delete=models.CASCADE)
class SubclassModelTest(ModelTest):
pass
class ExpressionModelTest(DirtyFieldsMixin, models.Model):
counter = models.IntegerField(default=0)
class DatetimeModelTest(DirtyFieldsMixin, models.Model):
compare_function = (timezone_support_compare, {})
datetime_field = models.DateTimeField(default=django_timezone.now)
class CurrentDatetimeModelTest(DirtyFieldsMixin, models.Model):
compare_function = (
timezone_support_compare,
{'timezone_to_set': django_timezone.get_current_timezone()},
)
datetime_field = models.DateTimeField(default=django_timezone.now)
class Many2ManyModelTest(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(ModelTest)
ENABLE_M2M_CHECK = True
class Many2ManyWithoutMany2ManyModeEnabledModelTest(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(ModelTest)
class ModelWithCustomPKTest(DirtyFieldsMixin, models.Model):
custom_primary_key = models.CharField(max_length=80, primary_key=True)
class M2MModelWithCustomPKOnM2MTest(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(ModelWithCustomPKTest)
class WithPreSaveSignalModelTest(DirtyFieldsMixin, models.Model):
data = models.CharField(max_length=255)
data_updated_on_presave = models.CharField(max_length=255, blank=True, null=True)
@staticmethod
def pre_save(instance, *args, **kwargs):
dirty_fields = instance.get_dirty_fields()
# only works for case2
if 'data' in dirty_fields:
if 'specific_value' in instance.data:
instance.data_updated_on_presave = 'presave_value'
pre_save.connect(
WithPreSaveSignalModelTest.pre_save,
sender=WithPreSaveSignalModelTest,
dispatch_uid="WithPreSaveSignalModelTest__pre_save",
)
class ModelWithoutM2MCheckTest(DirtyFieldsMixin, models.Model):
characters = models.CharField(blank=True, max_length=80)
ENABLE_M2M_CHECK = False
class DoubleForeignKeyModelTest(DirtyFieldsMixin, models.Model):
fkey1 = models.ForeignKey(ModelTest, on_delete=models.CASCADE)
fkey2 = models.ForeignKey(ModelTest, null=True, related_name='fkey2',
on_delete=models.CASCADE)
if is_postgresql_env_with_jsonb_field():
from django.contrib.postgres.fields import JSONField as JSONBField
class ModelWithJSONBFieldTest(DirtyFieldsMixin, models.Model):
jsonb_field = JSONBField()
class ModelWithJSONFieldThirdPartyTest(DirtyFieldsMixin, models.Model):
json_field_third_party = JSONFieldThirdParty()
class ModelWithSpecifiedFieldsTest(DirtyFieldsMixin, models.Model):
boolean1 = models.BooleanField(default=True)
boolean2 = models.BooleanField(default=True)
FIELDS_TO_CHECK = ['boolean1']
class ModelWithSpecifiedFieldsAndForeignKeyTest(DirtyFieldsMixin, models.Model):
boolean1 = models.BooleanField(default=True)
boolean2 = models.BooleanField(default=True)
fk_field = models.OneToOneField(ModelTest, null=True,
on_delete=models.CASCADE)
FIELDS_TO_CHECK = ['fk_field']
class ModelWithSpecifiedFieldsAndForeignKeyTest2(ModelWithSpecifiedFieldsAndForeignKeyTest):
FIELDS_TO_CHECK = ['fk_field_id']
class ModelWithM2MAndSpecifiedFieldsTest(DirtyFieldsMixin, models.Model):
m2m1 = models.ManyToManyField(ModelTest)
m2m2 = models.ManyToManyField(ModelTest)
ENABLE_M2M_CHECK = True
FIELDS_TO_CHECK = ['m2m1']
class BinaryModelTest(DirtyFieldsMixin, models.Model):
bytea = models.BinaryField()
class FileFieldModel(DirtyFieldsMixin, models.Model):
file1 = models.FileField(upload_to="file1/")