On Fri, 2009-08-07 at 11:40 -0700, Margie wrote:
> I see inconsistencies in how get_*_display() works based on whether
> the object is a recently saved object. Probably an example describes
> this best:
>
> My model contains this:
>
> class Task(models.Model):
>
> STATUS_CHOICES = (
> (OPEN_STATUS, 'Open'),
> (CLOSED_STATUS, 'Closed'),
> (STALLED_STATUS, 'Stalled'),)
>
> status = models.IntegerField(choices=STATUS_CHOICES, blank=True,
> null=True)
I'm assuming OPEN_STATUS and friends are integers here (and not '1' or
other strings that contain integers).
[...]
> However, if I have recently saved a modelForm associated with my Task
> model and now have a handle to the object that that save() returned,
> the status is in unicode, and get_status_display() doesn't return a
> useful string:
>
> (Pdb) type(self)
> <class 'taskmanager.models.Task'>
> (Pdb) self.status
> u'3'
> (Pdb) self.get_status_display()
> u'3'
If I create a standard ModelForm subclass for your task model and then
submit some data to it (just using {"status": "1"} as the POST data
dictionary), I cannot replicate your problem.
The devil is in the details here. What does your ModelForm look like?
The results you are seeing are consistent with the form somehow saving a
string value for the "status" field. Which means (a) you're using
SQLite, since other databases will complain about the type mismatch, and
(b) something is going funky in your particular ModelForm.
The get_FOO_display() method requires an exact match the choice value
and the value of the field, otherwise it just returns the field value.
Since 3 != u'3' in Python, it is returning the correct result, given the
value of the status field. The question is how did you manage to get a
string into the status field.
Regards,
Malcolm
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