On Sat, Feb 28, 2009 at 3:47 PM, Vitaly Babiy <vbabi...@gmail.com> wrote:
> Here is my constructor:
>
> class EmailVerification(models.Model):
> def __init__(self, user, ip, *args, **kargs):
> # Build sha1 for email verification
> sha1 = sha.new("".join([str(user.id), user.email, ip]))
> self.sha = sha1
> self.user = user
>
>
> Vitaly Babiy
>
>
> On Sat, Feb 28, 2009 at 3:41 PM, Alex Gaynor <alex.gay...@gmail.com>wrote:
>
>>
>>
>> On Sat, Feb 28, 2009 at 3:38 PM, Vitaly Babiy <vbabi...@gmail.com> wrote:
>>
>>> I have a model that I have created a custom consturctor now when I use it
>>> in a test or in loaddata, I get this error:
>>>
>>> vba...@vbabiy-laptop:~/projects/git-projects/howsthedotcom$ ./manage.py
>>> loaddata email_verification
>>> Installing json fixture 'email_verification' from
>>> '/home/vbabiy/projects/git-projects/howsthedotcom/../howsthedotcom/fixtures'.
>>> Problem installing fixture
>>> '/home/vbabiy/projects/git-projects/howsthedotcom/../howsthedotcom/fixtures/email_verification.json':
>>> Traceback (most recent call last):
>>> File
>>> "/usr/lib/python2.5/site-packages/django/core/management/commands/loaddata.py",
>>> line 150, in handle
>>> for obj in objects:
>>> File
>>> "/usr/lib/python2.5/site-packages/django/core/serializers/json.py", line 41,
>>> in Deserializer
>>> for obj in PythonDeserializer(simplejson.load(stream)):
>>> File
>>> "/usr/lib/python2.5/site-packages/django/core/serializers/python.py", line
>>> 96, in Deserializer
>>> yield base.DeserializedObject(Model(**data), m2m_data)
>>> TypeError: __init__() takes at least 3 non-keyword arguments (1 given)
>>>
>>>
>>>
>>>
>>> Vitaly Babiy
>>>
>>>
>>>
>> You need to create a constructor that has a comptible signature with the
>> default one, Django instantiates models in a number of places and short of
>> going in and hacking up the django source(which will cause it to break for
>> other models) it's not going to magically work with your new signature. If
>> you could provide your modified __init__ we could give some suggestions as
>> to how to make the signature compatible.
>>
>> Alex
>>
>> --
>> "I disapprove of what you say, but I will defend to the death your right
>> to say it." --Voltaire
>> "The people's good is the highest law."--Cicero
>>
>>
>>
>
> >
>
Ok what I would do is something like this:
def __init__(self, *args, **kwargs):
user, ip = kwargs.pop('user', None), kwargs.pop('ip', None)
if user and ip:
kwargs['sha'] = sha.new("".join([str(user.id), user.email, ip]))
kwargs['user'] = user
super(MyModel, self).__init__(*args, **kwargs)
Which should work for both way of using it, although you need to pass user
and ip as key word arguments and not as positional args.
Alex
--
"I disapprove of what you say, but I will defend to the death your right to
say it." --Voltaire
"The people's good is the highest law."--Cicero
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