def delete_thank(sender, instance, **kwargs):
"""
Undo the updates when the thank was created.
"""
api.remove_notification(
sender_id=instance.giver_id,
recipient_id=instance.review.user_id,
model_name="thank",
obj_id=instance.pk
)
api.remove_karma_action(
recipient_id=instance.review.user_id,
giver_id=instance.giver_id,
karma=1,
time_range=(instance.created_at,
instance.created_at+dt.timedelta(hours=1))
)
api.update_statistics(
model_name="userstatistics",
obj_id=instance.giver_id,
thanks_out=-1
)
api.update_statistics(
model_name="userstatistics",
obj_id=instance.review.user_id,
thanks_in=-1,
karma=-1
)
api.update_statistics(
model_name="review",
obj_id=instance.review_id,
thanks=-1
)
api.update_statistics(
model_name="popularity",
obj_id=instance.review.item_id,
**utils.decrement_popularities(instance.created_at,
instance.review.rating)
)
def delete_agree(sender, instance, **kwargs):
"""
Undo the updates when the agree was created.
"""
api.remove_activity(
sender_id=instance.giver_id,
verb="re-raved",
model_name="review",
obj_id=instance.review_id
)
api.remove_notification(
sender_id=instance.giver_id,
recipient_id=instance.review.user_id,
model_name="agree",
obj_id=instance.pk
)
api.remove_karma_action(
recipient_id=instance.review.user_id,
giver_id=instance.giver_id,
karma=2,
time_range=(instance.created_at,
instance.created_at+dt.timedelta(hours=1))
)
api.remove_karma_action(
recipient_id=instance.giver_id,
giver_id=instance.giver_id,
karma=1,
time_range=(instance.created_at,
instance.created_at+dt.timedelta(hours=1))
)
api.update_statistics(
model_name="userstatistics",
obj_id=instance.giver_id,
agrees_out=-1,
karma=-1
)
api.update_statistics(
model_name="userstatistics",
obj_id=instance.review.user_id,
agrees_in=-1,
karma=-2
)
api.update_statistics(
model_name="review",
obj_id=instance.review_id,
agrees=-1
)
api.update_statistics(
model_name="popularity",
obj_id=instance.review.item_id,
**utils.decrement_popularities(instance.created_at,
instance.review.rating)
)
reviews = api.filter_then_count(
model_name="review",
user=instance.giver_id,
item=instance.review.item_id
)
if reviews == 0:
remaining = api.filter_then_order_by(
model_name="agree",
order_criteria="-created_at",
giver=instance.giver_id,
review__item=instance.review.item_id
)
if (not remaining or
remaining[0].created_at < instance.created_at):
old_rating = utils.get_rating_field(instance.review.rating)
api.update_statistics(
model_name="item",
obj_id=instance.review.item_id,
**{ old_rating: -1 }
)
if remaining:
new_rating = utils.get_rating_field(
remaining[0].review.rating)
api.update_statistics(
model_name="item",
obj_id=instance.review.item_id,
**{ new_rating: 1 }
)