Hi,
You could try:
if hasattr(c, 'company')
# This is a company
else:
# This is a person
Julien
On Jun 29, 6:23 am, felix <[EMAIL PROTECTED]> wrote:
> Contact
> Company(Contact)
> Person(Contact)
>
> If I have a Contact it might be a Person or a Company and I'm looking
> for the best way to find out.
> Especially in cases where I'm listing these objects, doing a separate
> trial and error database query (as I show below) isn't the best
> solution.
>
> Actually it might be nice if the top parent class table had a
> content_type field (or similar to avoid coupling to
> contrib.contenttypes) so we could easily deduce the leaf class.
>
> >>> from peoplez.models import Contact, Company, Person
> >>> p = Person.objects.all()[0]
> >>> p
> <Person: Zip >
> >>> c = Contact.objects.all()[0]
> >>> c
> <Contact: Zip>
> >>> c == p
> False
> >>> dir(c)
>
> ['AddManipulator', 'ChangeManipulator', 'DoesNotExist',
> 'MultipleObjectsReturned', '__class__', '__delattr__', '__dict__',
> '__doc__', '__eq__', '__getattribute__', '__hash__', '__init__',
> '__metaclass__', '__module__', '__ne__', '__new__', '__reduce__',
> '__reduce_ex__', '__repr__', '__setattr__', '__str__', '__unicode__',
> '__weakref__', '_collect_sub_objects', '_default_manager',
> '_get_FIELD_display', '_get_FIELD_filename', '_get_FIELD_height',
> '_get_FIELD_size', '_get_FIELD_url', '_get_FIELD_width',
> '_get_image_dimensions', '_get_next_or_previous_by_FIELD',
> '_get_next_or_previous_in_order', '_get_pk_val', '_meta',
> '_save_FIELD_file', '_set_pk_val', '_tags_cache', 'aim', 'city',
> 'city_id', 'company', 'confidential', 'country', 'country_id',
> 'created_on', 'delete', 'description', 'dotmac', 'edit_url', 'email',
> 'fax', 'genres', 'get_absolute_url', 'get_next_by_created_on',
> 'get_previous_by_created_on', 'houseNumber', 'id', 'last_modified',
> 'mobile', 'msn', 'myspace', 'name', 'objects', 'person', 'pk',
> 'postcode', 'roles', 'save', 'save_base', 'skype', 'state',
> 'state_id', 'street', 'tags', 'tel', 'url', 'validate']
>
> # here's one sloppy way :>>> c.person
>
> <Person: Zip >
>
> # I could catch this :>>> c.company
>
> Traceback (most recent call last):
> ...
> DoesNotExist: Company matching query does not exist.
>
> that won't scale of course
>
> btw. I'm using newforms-admin svn
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