def get_face_from(face_id, update_views=False):
''' return a FacePictures obj from `face_id` '''
global FacePictures
face = FacePictures.find_one({_FACE_ID: face_id})
if update_views:
add_one_view_to(face)
return face
def get_current_winner(from_cache=True):
if not from_cache:
global FacePictures
return FacePictures.find_one(sort={'score': -1}, limit=1)
return get_from_cache('winner')
