Hi,
I have i weird problem when using model fields JSONField and
PickledObjectField together with the filter function.
from jsonfield.fields import JSONField
from picklefield.fields import PickledObjectField
class Item(models.Model):
picklefield = PickledObjectField(null=True, blank=True)
jsonfield = JSONField(null=True, blank=True)
if I store a dict in this model
mydict = {'description': 'Hello', }
item1 = Item.objects.create(picklefield=mydict)
item1.save()
item2 = Item.objects.filter(picklefield=mydict)
item2.exists() # returns True, as expected
if however my dict looks like this
mydict = {'description': None, 'name': u'Color', 'id': 1L,
'option': 'red'}
...same code as above...
item2.exists() # returns False
Then I tested the same with JSONField. There, I also expect that item2
shall exists, but this function also returns False.
Then I tested with mydict as
mydict = [ 2, 3, 4 ]
item1 = Item.objects.create(jsonfield=mydict)
item1.save()
item2 = Item.objects.filter(jsonfield=mydict)
item2.exists() # returns True, as expected
BTW, this example also works with PickledObjectField.
I don't think its a bug in both implementations of JSONField and
PickledObjectField, because they always serialize to the same string.
Is this undefined behavior intentional and I missed to read some
documentation? How can I solve this, without having to serialize the
objects manually?
Any help is greatly appreciated.
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