Hello all,
when I save an object that has a ForeignKey raw_id_field, it shows the label
(Unicode representation) of the related object next to the field, instead of
just the field with object's PK.
I'd like to do the same thing with a ManyToMany raw_id_field (for now, just
the objects' PK appear).
I found out that the class responsible for this is "ManyToManyRawIdField",
inside file
/usr/lib/python2.4/site-packages/django/contrib/admin/widgets.py.
"""
class ForeignKeyRawIdWidget(forms.TextInput):
[...]
def render(self, name, value, attrs=None):
[...]
if value:
*output.append(self.label_for_value(value))*
return mark_safe(u''.join(output))
* def label_for_value(self, value):*
key = self.rel.get_related_field().name
obj = self.rel.to._default_manager.get(**{key: value})
return ' <strong>Label: %s</strong>' % truncate_words(obj, 14)
class ManyToManyRawIdWidget(ForeignKeyRawIdWidget):
[...]
def render(self, name, value, attrs=None):
attrs['class'] = 'vManyToManyRawIdAdminField'
if value:
value = ','.join([str(v) for v in value])
else:
value = ''
return super(ManyToManyRawIdWidget, self).render(name, value, attrs)
* def label_for_value(self, value):*
return ''
[...]
"""
I've to return the desired string (a concatenation of the related objects
unicode representations) in method label_for_value and append it to the
return of method render. But I dunno how to manipulate the object 'value'
neither how to append it to the result of render, as it's done in class
ForeignKeyRawIdWidget.
How can I do it? Is there another way to accomplish this?
Cheers!
--
João Olavo Baião de Vasconcelos
Bacharel em Ciência da Computação
Analista de Sistemas - Infraestrutura
joaoolavo.wordpress.com
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