I need to limit choices dynamically by an object, not a class:
class CertType(models.Model):
name = models.CharField(max_length=128)
class ActivityTopic(models.Model):
cert_types = models.ManyToMany(CertType)
class Participation(models.Model):
activity_topic = models.ForeignKey(activity_topic)
cert_type = models.ForeignKey(CertType)
An activity topic can deliver one or more cert types, but a
participation has a single cert type. When adding or changing a
participation object, either in the admin or via model forms, I need
to limit the choices for cert type to those offered by the the
participation's activity topic.
limit_choices_to seems like the obvious answer, but, as it is defined
at the class level, I can't seem to figure out how to get the specific
object into the limit.
Perhaps I am going totally in the wrong direction, or this is
something I can't do other than custom view to add the participation
records.
Any thoughts? Thanks,
Wayne
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