def delete_topic_parent_action(user_id, topic_id, parent_id):
"""return 0(int) if succeeded, otherwise return error message"""
topic_parent = Topic_Parent.objects.filter(topic__id=topic_id, parent__id=parent_id)
topic_parent.delete()
refs = Topic_Revision.objects.filter(topic__id=topic_id, parent__id=parent_id, operation='ap').order_by('-pk')
if refs:
reference = refs[0]
if reference.user_id != user_id:
notification = Notification(operation='dp')
notification.user_id = reference.user_id
notification.related_user_id = user_id
notification.topic_id = topic_id
notification.incr_count_in_profile()
notification.save()
update_user_topic_fame(topic_id, user_id, reference.user_id)
else:
reference = None
update_user_topic_fame(topic_id, user_id)
topic_revision = Topic_Revision(operation='dp', reference=reference)
topic_revision.topic_id = topic_id
topic_revision.parent_id = parent_id
topic_revision.user_id = user_id
topic_revision.save()
return 0
def add_topic_parent_action(user_id, topic_id, parent_id=0, parent_name=''):
"""
Return parent_id(long) if succeed, otherwise return error message
@attention: Haoliang modified the return value
"""
#if paernt_id is passed, we use it directly later on; Otherwise we need to add topic and get parent_id
if not parent_id and not parent_name:
return '上级话题不能为空'
if parent_name:
parent_set = Topic.objects.filter(name=parent_name)
if parent_set and not parent_set[0].deleted:
parent_id = parent_set[0].pk
else:
return_value = add_topic_action(user_id, topic_name=parent_name)
if return_value['error_message']:
return return_value['error_message']
else:
parent_id = int(return_value['topic_id'])
if topic_id == parent_id:
return '不能将自身话题作为上级话题'
topic_childs = Topic_Parent.objects.filter(parent__id=topic_id)
for tc in topic_childs:
if parent_id == tc.topic_id:
return '不能将此话题下层话题作为上层话题'
topic_parent = Topic_Parent.objects.filter(topic__id=topic_id, parent__id=parent_id)
if topic_parent:
return '请勿输入重复的父母话题'
topic_parent = Topic_Parent()
topic_parent.topic_id = topic_id
topic_parent.parent_id = parent_id
topic_parent.save()
refs = Topic_Revision.objects.filter(topic__id=topic_id, parent__id=parent_id, operation='dp').order_by('-pk')
if refs:
reference = refs[0]
if reference.user_id != user_id:
notification = Notification(operation='ap')
notification.user_id = reference.user_id
notification.related_user_id = user_id
notification.topic_id = topic_id
notification.incr_count_in_profile()
notification.save()
update_user_topic_fame(topic_id, user_id, reference.user_id)
else:
reference = None
update_user_topic_fame(topic_id, user_id)
topic_revision = Topic_Revision(operation='ap', reference=reference)
topic_revision.topic_id = topic_id
topic_revision.parent_id = parent_id
topic_revision.user_id = user_id
topic_revision.save()
return parent_id
