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?
Regards
Manuel
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