Sorry Daniel, you're right !
I thought the exception pointed out the "if" statement in the template, but
it is in fact the "IF" command in my MediaCollectionQuerySet.
Here is a part of the MediaCollectionManager with its "enriched" method:
class MediaCollectionManager(CoreManager):
"Manage collection queries"
def get_query_set(self):
"Return the collection query"
return MediaCollectionQuerySet(self.model)
def enriched(self):
"Query set with additional virtual fields such as
apparent_collector"
return self.get_query_set().virtual('apparent_collector')
And the MediaCollectionQuerySet with its "virtual" method:
class MediaCollectionQuerySet(CoreQuerySet):
def virtual(self, *args):
qs = self
for f in args:
if f == 'apparent_collector':
qs = qs.extra(select={f:
'IF(media_collections.collector_is_creator, '
'media_collections.creator,
media_collections.collector)'})
else:
raise Exception("Unsupported virtual field: %s" % f)
return qs
See for more details:
http://telemeta.org/browser/telemeta/models/query.py#L327
http://telemeta.org/browser/telemeta/models/query.py#L279
Thanks for your help Daniel and others,
G
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