def test_deconstruction(self):
constraint = models.Q(price__gt=models.F('discounted_price'))
name = 'price_gt_discounted_price'
check = models.CheckConstraint(constraint, name)
path, args, kwargs = check.deconstruct()
self.assertEqual(path, 'djmodels.db.models.CheckConstraint')
self.assertEqual(args, ())
self.assertEqual(kwargs, {'constraint': constraint, 'name': name})
def test_repr(self):
constraint = models.Q(price__gt=models.F('discounted_price'))
name = 'price_gt_discounted_price'
check = models.CheckConstraint(constraint, name)
self.assertEqual(
repr(check),
"<CheckConstraint: constraint='{}' name='{}'>".format(
constraint, name),
)
class Meta:
constraints = [
models.CheckConstraint(
models.Q(price__gt=models.F('discounted_price')),
'price_gt_discounted_price')
]
class Meta:
constraints = [
models.CheckConstraint(models.Q(age__gte=18), 'is_adult')
]
def today_callable_q():
return models.Q(last_action__gte=datetime.datetime.today())
def get_extra_descriptor_filter(self, instance):
return models.Q(lang=get_language())