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from django.db import models
from django.db.models.signals import pre_save
from django.utils import timezone
from dirtyfields import DirtyFieldsMixin
from dirtyfields.compare import timezone_support_compare
from tests.utils import is_postgresql_env_with_json_field
class TestModel(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 TestModelWithDecimalField(DirtyFieldsMixin, models.Model):
decimal_field = models.DecimalField(decimal_places=2, max_digits=10)
class TestModelWithForeignKey(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey(TestModel, on_delete=models.CASCADE)
class TestMixedFieldsModel(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey(TestModel, on_delete=models.CASCADE)
characters = models.CharField(blank=True, max_length=80)
class TestModelWithOneToOneField(DirtyFieldsMixin, models.Model):
o2o = models.OneToOneField(TestModel, on_delete=models.CASCADE)
class TestModelWithNonEditableFields(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 TestModelWithSelfForeignKey(DirtyFieldsMixin, models.Model):
fkey = models.ForeignKey("self", blank=True, null=True, on_delete=models.CASCADE)
class OrdinaryTestModel(models.Model):
boolean = models.BooleanField(default=True)
characters = models.CharField(blank=True, max_length=80)
class OrdinaryTestModelWithForeignKey(models.Model):
fkey = models.ForeignKey(OrdinaryTestModel, on_delete=models.CASCADE)
class SubclassModel(TestModel):
pass
class TestExpressionModel(DirtyFieldsMixin, models.Model):
counter = models.IntegerField(default=0)
class TestDatetimeModel(DirtyFieldsMixin, models.Model):
compare_function = (timezone_support_compare, {})
datetime_field = models.DateTimeField(default=timezone.now)
class TestCurrentDatetimeModel(DirtyFieldsMixin, models.Model):
compare_function = (timezone_support_compare, {'timezone_to_set': timezone.get_current_timezone()})
datetime_field = models.DateTimeField(default=timezone.now)
class TestM2MModel(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(TestModel)
ENABLE_M2M_CHECK = True
class TestM2MModelWithoutM2MModeEnabled(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(TestModel)
class TestModelWithCustomPK(DirtyFieldsMixin, models.Model):
custom_primary_key = models.CharField(max_length=80, primary_key=True)
class TestM2MModelWithCustomPKOnM2M(DirtyFieldsMixin, models.Model):
m2m_field = models.ManyToManyField(TestModelWithCustomPK)
class TestModelWithPreSaveSignal(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(TestModelWithPreSaveSignal.pre_save,
sender=TestModelWithPreSaveSignal)
class TestModelWithoutM2MCheck(DirtyFieldsMixin, models.Model):
characters = models.CharField(blank=True, max_length=80)
ENABLE_M2M_CHECK = False
class TestDoubleForeignKeyModel(DirtyFieldsMixin, models.Model):
fkey1 = models.ForeignKey(TestModel, on_delete=models.CASCADE)
fkey2 = models.ForeignKey(TestModel, null=True, related_name='fkey2',
on_delete=models.CASCADE)
if is_postgresql_env_with_json_field():
from django.contrib.postgres.fields import JSONField
class TestModelWithJSONField(DirtyFieldsMixin, models.Model):
json_field = JSONField()
class TestModelWithSpecifiedFields(DirtyFieldsMixin, models.Model):
boolean1 = models.BooleanField(default=True)
boolean2 = models.BooleanField(default=True)
FIELDS_TO_CHECK = ['boolean1']
class TestModelWithSpecifiedFieldsAndForeignKey(DirtyFieldsMixin, models.Model):
boolean1 = models.BooleanField(default=True)
boolean2 = models.BooleanField(default=True)
fk_field = models.OneToOneField(TestModel, null=True,
on_delete=models.CASCADE)
FIELDS_TO_CHECK = ['fk_field_id']
class TestModelWithM2MAndSpecifiedFields(DirtyFieldsMixin, models.Model):
m2m1 = models.ManyToManyField(TestModel)
m2m2 = models.ManyToManyField(TestModel)
ENABLE_M2M_CHECK = True
FIELDS_TO_CHECK = ['m2m1']
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