def update_user_topic_fame(topic_id, current_user_id, added_score):
"""
updates the *score* in User_Topic_Fame for the creator of an item that is tagged this topic
"""
utf_current_set = User_Topic_Fame.objects.filter(user__pk=current_user_id, topic__pk=topic_id)
if utf_current_set:
utf_current = utf_current_set[0]
utf_current.score = utf_current.score + added_score
utf_current.save()
else:
utf_current = User_Topic_Fame()
utf_current.topic_id = topic_id
utf_current.user_id = current_user_id
utf_current.score = added_score
utf_current.save()
return "success"
def delete_item_topic_action(item_id, user_id, topic_id):
"""
Delete topic from an item
Args:
#. item_id (long type)
#. user_id (long type)
#. topic_id (long type)
Return:
#. Success: item_topic_id (long type)
#. Failed: error_message (string type)s
"""
item_topic = Item_Topic.objects.get(item__id=item_id, topic__id=topic_id)
item_topic.deleted = True
previous_user_id = item_topic.recent_user_id
item_topic.recent_user_id = user_id
item_topic.save()
if previous_user_id: #Can be None if tagged by system
utf_previous = User_Topic_Fame.objects.get(user__pk=previous_user_id, topic__pk=topic_id)
utf_previous.reverted_in_item_count = utf_previous.reverted_in_item_count + 1
utf_previous.save()
utf_current_set = User_Topic_Fame.objects.filter(user__pk=user_id, topic__pk=topic_id)
if utf_current_set:
utf_current = utf_current_set[0]
utf_current.action_in_item_count = utf_current.action_in_item_count + 1
utf_current.save()
else:
utf_current = User_Topic_Fame()
utf_current.topic_id = topic_id
utf_current.user_id = user_id
utf_current.action_in_item_count = 1
utf_current.save()
return item_topic.id
def update_user_topic_fame(topic_id, current_user_id, previous_user_id=None):
"""
Updates the topic_action_count and reverted_in_topic_count field in User_Topic_Fame
for all the changes that are involved with topic management(not including add/delete item_topic)
current_user is the one who did this operation, while previous user is the one whose operation gets reverted
"""
if previous_user_id:
utf_previous = User_Topic_Fame.objects.get(user__pk=previous_user_id, topic__pk=topic_id)
utf_previous.reverted_in_topic_count = utf_previous.reverted_in_topic_count + 1
utf_previous.save()
utf_current_set = User_Topic_Fame.objects.filter(user__pk=current_user_id, topic__pk=topic_id)
if utf_current_set:
utf_current = utf_current_set[0]
utf_current. topic_action_count = utf_current.topic_action_count + 1
utf_current.save()
else:
utf_current = User_Topic_Fame()
utf_current.topic_id = topic_id
utf_current.user_id = current_user_id
utf_current.topic_action_count = 1
utf_current.save()
return "success"
def add_item_topic_action(item_id, user_id, topic_id=0, topic_name=''):
"""
Args:
#. item_id (long type)
#. user_id (long type)
#. topic_id (long type, if it's null, then should use topic_name instead)
#. topic_name (string type, if it's null, then should use topic_id instead)
Return:
#. Success: topic_id (long type) in case that topic id is required
#. Failed: error_message (string type)s
"""
#Topic name is only used if there is no topic found by query suggestion(or deleted)
#A rare case could also occur if query suggestion is not quick enough
if not topic_id and not topic_name:
return '话题名字不能为空'
if topic_name:
#Ajax might not be able to respond in time, so user may enter a topic_name that already exists
topic_set = Topic.objects.filter(name=topic_name)
if topic_set:
topic_id = topic_set[0].pk
else:
return_value = add_topic_action(user_id, topic_name=topic_name)
if return_value.get('topic_id', None):
topic_id = return_value.get('topic_id', None)
else:
return return_value['error_message']
topic = Topic.objects.get(pk=topic_id)
if topic.deleted or topic.merged_to_id:
return '此话题已被删除或合并'
item_topic_set = Item_Topic.objects.filter(item__id=item_id, topic__id=topic_id)
previous_user_id = None
if item_topic_set:
item_topic = item_topic_set[0]
if item_topic.deleted == False:
return '此话题已经添加这个网址'
item_topic.deleted = False
previous_user_id = item_topic.recent_user_id
else:
item_topic = Item_Topic()
item_topic.item_id = item_id
item_topic.topic_id = topic_id
item_topic.recent_user_id = user_id
item_topic.save()
if previous_user_id:
utf_previous = User_Topic_Fame.objects.get(user__pk=previous_user_id, topic__pk=topic_id)
utf_previous.reverted_in_item_count = utf_previous.reverted_in_item_count + 1
utf_previous.save()
utf_current_set = User_Topic_Fame.objects.filter(user__pk=user_id, topic__pk=topic_id)
if utf_current_set:
utf_current = utf_current_set[0]
utf_current.action_in_item_count = utf_current.action_in_item_count + 1
utf_current.save()
else:
utf_current = User_Topic_Fame()
utf_current.topic_id = topic_id
utf_current.user_id = user_id
utf_current.action_in_item_count = 1
utf_current.save()
return topic_id #success