On Thu, Oct 2, 2008 at 8:46 AM, oversize <[EMAIL PROTECTED]> wrote:
>
> Hello
>
> in a ModelForm based Form, i have a ManyToManyField. I want only
> specific objects of the Relation to be shown in the Forms
> ModelMultipleChoiceField.
> For my example, Motive and Textile belong to the same Project, and i
> want only the Motives to Show in the ModelMultipleChoiceField that are
> related to the same project as the Textile Instance is.
>
>
> Models and the Form :
>
> class Motive(models.Model):
> # ...
> project = models.ForeignKey(Project)
>
> class Textile(models.Model):
> # ...
> project = models.ForeignKey(Project)
> motives = models.ManyToManyField('Motive', blank=True)
>
> class TextileForm(forms.ModelForm):
> def __init__(self, project_id):
> super(TextileForm, self).__init__()
> self.motives.queryset =
> Motive.objects.filter(project=project_id)
>
> class Meta:
> model = Textile
> exclude = ('project', 'last_modified', 'trashed')
>
>
> When i create the Form i get the Exception: 'TextileForm' object has
> no attribute 'motives'
>
> How could access the ModelMultipelChoiceField to alter the QuerySet?
>
Try:
self.fields['motives'].queryset = your_custom_queryset
in your __init__ method instead of what you have.
Karen
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