def tx(key, incr):
recipe = Recipe.get(db.Key(key))
if recipe:
recipe.views += incr
to_db = [recipe]
idx = RecipeIdx.get(db.Key.from_path('RecipeIdx', 'idx', parent=recipe.key()))
if idx:
idx.views = recipe.views
to_db.append(idx)
fri = RecipeFriends.get(db.Key.from_path('RecipeFriends', 'fri', parent=recipe.key()))
if fri:
fri.views = recipe.views
to_db.append(fri)
db.put(to_db)
return True
