#14037: models.DateField don't serialize JSON
---------------------------+------------------------------------------------
Reporter: carlopires | Owner: nobody
Status: new | Milestone:
Component: Uncategorized | Version: 1.2
Keywords: | Stage: Unreviewed
Has_patch: 0 |
---------------------------+------------------------------------------------
When serializing records with DateField(auto_now=True), the serialized
string is incorrect because created record is initialized with
date.datetime
and django.core.serializers.Serializer.handle_field don't call
DateField.value_to_string() as date.datetime is listed in
django.utils.encoding.is_protected_type.
Start an app called bugmodel and create:
{{{
#!python
from django.db import models
class BugSerial(models.Model):
date = models.DateField(auto_now=True)
}}}
Now, after syncdb, the bug:
{{{
./manage.py shell
}}}
{{{
#!python
In [1]: from bugmodel.models import BugSerial
In [2]: r = BugSerial()
In [3]: r.save()
In [4]: from django.core.serializers import serialize
In [5]: serialized = serialize('json', [r])
In [6]: serialized
Out[6]: '[{"pk": 1, "model": "bugmodel.bugserial", "fields": {"date":
"2010-07-30 14:24:09"}}]'
In [7]: from django.core.serializers import deserialize
In [8]: unserialized = deserialize('json', serialized)
In [9]: unserialized
Out[9]: <generator object Deserializer at 0x187d0f0>
In [10]: list(unserialized)
---------------------------------------------------------------------------
ValidationError Traceback (most recent call
last)
/home/carlo/bug/bug/<ipython console> in <module>()
/usr/lib/python2.6/dist-packages/django/core/serializers/json.py in
Deserializer(stream_or_string, **options)
36 else:
37 stream = stream_or_string
---> 38 for obj in PythonDeserializer(simplejson.load(stream),
**options):
39 yield obj
40
/usr/lib/python2.6/dist-packages/django/core/serializers/python.py in
Deserializer(object_list, **options)
126 # Handle all other fields
127 else:
--> 128 data[field.name] = field.to_python(field_value)
129
130 yield base.DeserializedObject(Model(**data), m2m_data)
/usr/lib/python2.6/dist-packages/django/db/models/fields/__init__.py in
to_python(self, value)
606
607 if not ansi_date_re.search(value):
--> 608 raise
exceptions.ValidationError(self.error_messages['invalid'])
609 # Now that we have the date string in YYYY-MM-DD format,
check to make
610 # sure it's a valid date.
ValidationError: [u'Enter a valid date in YYYY-MM-DD format.']
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/14037>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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