def hasImageAndCaption(object, portal, **kw):
"""This indexable attribute is made to avoid the awakening of the
object while needing to know if the supposedly attached image exists
or not. It's very useful for the summary views or other kind of listings.
"""
if (not IImageContent.providedBy(object) and
not IPhotoAlbumAble.providedBy(object)):
adapted = IImageContentProvider(object, None)
if adapted is None:
return None
else:
sub_path = adapted.sub_path
image = adapted.getImage()
else:
sub_path = "image"
image = object.getImage()
if image:
caption = getattr(aq_inner(object), "getImageCaption", None)
return {'image': True,
'sub_path': sub_path,
'caption': caption and caption() or None}
else:
return {'image': False, 'caption': None, 'sub_path': None}
def test_implements(self):
self.failUnless(IPhotoAlbumAble.providedBy(self.fobj))
