def create_comment(self, **kw):
try:
#check if this user can create a comment in this topic
#for now every member of the topic can create a comment
creator = DBSession.query(MemberTopic).\
filter(MemberTopic.topic_id==kw['topic_id'],
MemberTopic.member_id==request.identity['user'].user_id).\
first()
if not creator:
#TODO: this should never happen, log this event and return only False
return dict(success=False, error_code=ErrorCode.UNAUTHORIZED)
comment = Comment()
comment.subject_id = kw['subject_id']
comment.creator_id = request.identity['user'].user_id
comment.content = kw['content']
DBSession.add(comment)
DBSession.flush()
#TODO: should not query then update, should only update
topic = DBSession.query(Topic).\
filter(Topic.uid==kw['topic_id']).first()
#TODO: need to rethink this time var, how about subject update_time
topic.update_time = comment.time
log.info("User %s creates comment %s"%(comment.creator_id, comment))
subject_title = DBSession.query(Subject.title).\
filter(Subject.uid==kw['subject_id']).first()[0]
members = DBSession.query(User.email_address).\
filter(MemberTopic.topic_id==kw['topic_id'],
MemberTopic.member_id!=creator.member_id,
MemberTopic.deleted==False,
MemberSubject.subject_id==kw['subject_id'],
MemberSubject.muted==False).\
join(MemberTopic,MemberSubject).\
all()
member_emails = [member[0] for member in members]
#send notification to users
notif=dict(type='new_comment',topic=topic.title,subject=subject_title,comment=comment.content,
registered_users=member_emails,user_name=request.identity['user'].user_name)
log.info('Sending SNS notification: %s'%notif)
sns=SNSConnection(config.get('AWS_ACCESS_KEY_ID'), config.get("AWS_SECRET_ACCESS_KEY"))
sns.publish(config.get('sqs_user_notification'),js.dumps(notif))
return dict(success=True, comment=dict(uid=comment.uid, time=comment.time))
except Exception as e:
log.exception('Got exception %s'%e)
#traceback.print_exc(file=sys.stdout)
return dict(success=False)
def create_subject(self, **kw):
try:
#check if this user can create a subject in this topic
creator = DBSession.query(MemberTopic).\
filter(MemberTopic.topic_id==kw['topic_id'],
MemberTopic.member_id==request.identity['user'].user_id,
'role = "c" or role = "s"').\
first()
if not creator:
#TODO: this should never happen, log this event and return only False
return dict(success=False, error_code=ErrorCode.UNAUTHORIZED)
#add new subject to the database
subject = Subject()
subject.topic_id = kw['topic_id']
subject.title = kw['title']
subject.creator_id = request.identity['user'].user_id
DBSession.add(subject)
DBSession.flush()
comment = None
if kw.has_key('content'):
comment = Comment()
comment.subject_id = subject.uid
comment.creator_id = request.identity['user'].user_id
comment.content = kw['content']
DBSession.add(comment)
DBSession.flush()
#add creator to member_subject
if comment:
member_subject = MemberSubject(member_id = creator.member_id,
subject_id = subject.uid,
last_read = comment.uid)
else:
member_subject = MemberSubject(member_id = creator.member_id,
subject_id = subject.uid,
last_read = 0)
subject.members.append(member_subject)
# registered_users = DBSession.query(User.email_address).filter(User.email_address.in_(members)).all()
members = DBSession.query(MemberTopic.member_id,User.email_address).\
filter(MemberTopic.topic_id==kw['topic_id'],
MemberTopic.member_id!=creator.member_id,
MemberTopic.deleted == False).\
join(User).\
all()
#add other members to member_subject table
member_ids = [member[0] for member in members]
for member_id in member_ids:
member_subject = MemberSubject(member_id = member_id,
subject_id = subject.uid,
last_read = 0)
subject.members.append(member_subject)
topic = DBSession.query(Topic).\
filter(Topic.uid==kw['topic_id']).first()
#TODO: need to rename/rethink this time vars
topic.update_time = subject.time
log.info("User %s creates subject %s"%(creator.member_id, subject))
member_emails = [member[1] for member in members]
#send notification to users
if len(member_emails)>0:
notif=dict(type='new_subject',topic=topic.title,subject=subject.title,
registered_users=member_emails,user_name=request.identity['user'].user_name)
log.info('Sending SNS notification: %s'%notif)
sns=SNSConnection(config.get('AWS_ACCESS_KEY_ID'), config.get("AWS_SECRET_ACCESS_KEY"))
sns.publish(config.get('sqs_user_notification'),js.dumps(notif))
return dict(success=True, subject=dict(uid=subject.uid, time=subject.time))
except Exception as e:
log.exception('Got exception %s'%e)
#traceback.print_exc(file=sys.stdout)
return dict(success=False)
