def get(self):
"""
获取关注的用户列表
"""
qs_parser = RequestParser()
qs_parser.add_argument('page', type=inputs.positive, required=False, location='args')
qs_parser.add_argument('per_page', type=inputs.int_range(constants.DEFAULT_USER_FOLLOWINGS_PER_PAGE_MIN,
constants.DEFAULT_USER_FOLLOWINGS_PER_PAGE_MAX,
'per_page'),
required=False, location='args')
args = qs_parser.parse_args()
page = 1 if args.page is None else args.page
per_page = args.per_page if args.per_page else constants.DEFAULT_USER_FOLLOWINGS_PER_PAGE_MIN
results = []
followings = cache_user.UserFollowingCache(g.user_id).get()
followers = cache_user.UserFollowersCache(g.user_id).get()
total_count = len(followings)
req_followings = followings[(page-1)*per_page:page*per_page]
for following_user_id in req_followings:
user = cache_user.UserProfileCache(following_user_id).get()
results.append(dict(
id=following_user_id,
name=user['name'],
photo=user['photo'],
fans_count=user['fans_count'],
mutual_follow=following_user_id in followers
))
return {'total_count': total_count, 'page': page, 'per_page': per_page, 'results': results}
def post(self):
"""
关注用户
"""
json_parser = RequestParser()
json_parser.add_argument('target',
type=parser.user_id,
required=True,
location='json')
args = json_parser.parse_args()
target = args.target
if target == g.user_id:
return {'message': 'User cannot follow self.'}, 400
ret = 1
try:
follow = Relation(user_id=g.user_id,
target_user_id=target,
relation=Relation.RELATION.FOLLOW)
db.session.add(follow)
db.session.commit()
except IntegrityError:
db.session.rollback()
ret = Relation.query.filter(Relation.user_id == g.user_id,
Relation.target_user_id == target,
Relation.relation != Relation.RELATION.FOLLOW)\
.update({'relation': Relation.RELATION.FOLLOW})
db.session.commit()
if ret > 0:
timestamp = time.time()
cache_user.UserFollowingCache(g.user_id).update(target, timestamp)
cache_user.UserFollowersCache(target).update(g.user_id, timestamp)
cache_statistic.UserFollowingsCountStorage.incr(g.user_id)
cache_statistic.UserFollowersCountStorage.incr(target)
cache_user.UserRelationshipCache(g.user_id).clear()
# 发送关注通知
_user = cache_user.UserProfileCache(g.user_id).get()
_data = {
'user_id': g.user_id,
'user_name': _user['name'],
'user_photo': _user['photo'],
'timestamp': int(time.time())
}
# 通过socketio提供的kombu管理对象 向rabbitmq中写入数据，记录需要由socketio服务器向客户端推送消息的任务
current_app.sio_mgr.emit('following notify',
data=_data,
room=str(target))
return {'target': target}, 201
def delete(self, target):
"""
取消关注用户
"""
ret = Relation.query.filter(Relation.user_id == g.user_id,
Relation.target_user_id == target,
Relation.relation == Relation.RELATION.FOLLOW)\
.update({'relation': Relation.RELATION.DELETE})
db.session.commit()
if ret > 0:
timestamp = time.time()
cache_user.UserFollowingCache(g.user_id).update(target, timestamp, -1)
cache_user.UserFollowersCache(target).update(g.user_id, timestamp, -1)
cache_statistic.UserFollowingsCountStorage.incr(g.user_id, -1)
cache_statistic.UserFollowersCountStorage.incr(target, -1)
return {'message': 'OK'}, 204
def post(self):
"""
拉黑用户
"""
json_parser = RequestParser()
json_parser.add_argument('target',
type=parser.user_id,
required=True,
location='json')
args = json_parser.parse_args()
target = args.target
if target == g.user_id:
return {'message': 'User cannot blacklist self.'}, 400
try:
blacklist = Relation(user_id=g.user_id,
target_user_id=target,
relation=Relation.RELATION.BLACKLIST)
db.session.add(blacklist)
db.session.commit()
except IntegrityError:
db.session.rollback()
fol_ret = 0
# Change relation from DELETE to BLACKLIST
del_ret = Relation.query.filter(Relation.user_id == g.user_id,
Relation.target_user_id == target,
Relation.relation == Relation.RELATION.DELETE) \
.update({'relation': Relation.RELATION.BLACKLIST})
if del_ret == 0:
# Change relation from FOLLOW to BLACKLIST
fol_ret = Relation.query.filter(Relation.user_id == g.user_id,
Relation.target_user_id == target,
Relation.relation == Relation.RELATION.FOLLOW) \
.update({'relation': Relation.RELATION.BLACKLIST})
db.session.commit()
if fol_ret > 0:
timestamp = time.time()
cache_user.UserFollowingCache(g.user_id).update(
target, timestamp, -1)
cache_user.UserFollowersCache(target).update(
g.user_id, timestamp, -1)
cache_statistic.UserFollowingsCountStorage.incr(g.user_id, -1)
cache_statistic.UserFollowersCountStorage.incr(target, -1)
return {'target': target}, 201
