def get_tag_post(tag_id, limit=10, offset=0):
assert_error(offset >= 0, 'ParamError')
posts = Post.query.join(Tagging,Post.id == Tagging.taggable_id).\
filter(Tagging.tag_id == tag_id).\
filter(Post.show == True).\
order_by(Tagging.date_create.desc()).\
limit(limit).offset(offset).all()
return [p.json for p in posts]
def get_post_comment(post_id,limit=50,offset=0,show=True):
assert_error(type(post_id) == types.IntType,'ParamError')
_ans = [Comment.show == True,] if show else []
_ans.append(Comment.post_id == post_id)
q = reduce(db.and_,_ans)
comms = Comment.query.filter(q).order_by(Comment.date_create.desc()).\
limit(limit).offset(offset).all()
return [c.json for c in comms]
def get_post_comment(post_id, limit=50, offset=0, show=True):
assert_error(type(post_id) == types.IntType, 'ParamError')
_ans = [
Comment.show == True,
] if show else []
_ans.append(Comment.post_id == post_id)
q = reduce(db.and_, _ans)
comms = Comment.query.filter(q).order_by(Comment.date_create.desc()).\
limit(limit).offset(offset).all()
return [c.json for c in comms]
def follow_user(fid,tid):
assert_error(all([type(_id) == types.IntType for _id in [fid,tid]]),'ParamError')
try:
asso = UserFollowAsso(user_id=fid,user_id_to=tid)
db.session.add(asso)
db.session.commit()
except:
db.session.rollback()
raise
else:
return asso.id
def add_play(user_id, post_id):
assert_error(all([type(x) for x in [user_id, post_id]]), 'ParamError')
ura = UserPlayAsso()
ura.user_id = user_id
ura.post_id = post_id
try:
db.session.add(ura)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError', traceback.format_exc())
def get_tag_post(tag_id, limit=10, offset=0):
assert_error(offset >= 0, "ParamError")
posts = (
Post.query.join(Tagging, Post.id == Tagging.taggable_id)
.filter(Tagging.tag_id == tag_id)
.filter(Post.show == True)
.order_by(Tagging.date_create.desc())
.limit(limit)
.offset(offset)
.all()
)
return [p.json for p in posts]
def add_play(user_id,post_id):
assert_error(all([type(x) for x in [user_id,post_id]]),'ParamError')
ura = UserPlayAsso()
ura.user_id = user_id
ura.post_id = post_id
try:
db.session.add(ura)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError',traceback.format_exc())
def set_user(user_id,info_d):
assert_error(type(user_id) == types.IntType,'ParamError')
user = User.query.get(user_id)
try:
for k,v in info_d.items():
if v is not None:
setattr(user,k,v)
db.session.commit()
except:
db.session.rollback()
raise
else:
return user.json
def get_user_post(user_id,offset=0,limit=20):
assert_error(offset >= 0,'ParamError')
posts = Post.query.filter(Post.author_id == user_id).\
order_by(Post.date_create.desc()).\
limit(limit).offset(offset).all()
_posts = []
for p in posts:
_u = p.user.json
_p = p.json
_p.update({'user':_u})
_posts.append(_p)
return _posts
def unfollow_user(fid,tid):
assert_error(all([type(_id) == types.IntType for _id in [fid,tid]]),'ParamError')
asso = UserFollowAsso.query.filter(db.and_(UserFollowAsso.user_id==fid,UserFollowAsso.user_id_to==tid)).\
first()
if asso is None:
return
try:
db.session.delete(asso)
db.session.commit()
except:
db.session.rollback()
raise
else:
return True
def get_user_post(user_id, offset=0, limit=20):
assert_error(offset >= 0, 'ParamError')
posts = Post.query.filter(Post.author_id == user_id).\
order_by(Post.date_create.desc()).\
limit(limit).offset(offset).all()
_posts = []
for p in posts:
_u = p.user.json
_p = p.json
_p.update({'user': _u})
_posts.append(_p)
return _posts
def get_user_liked_post(user_id, offset=0, limit=20):
assert_error(offset >= 0, 'ParamError')
posts = Post.query.join(UserLikeAsso,Post.id == UserLikeAsso.post_id).\
filter(UserLikeAsso.user_id == user_id).\
order_by(UserLikeAsso.date_create.desc()).\
limit(limit).offset(offset).all()
_posts = []
for p in posts:
_u = p.user.json
_p = p.json
_p.update({'user': _u})
_posts.append(_p)
return _posts
def del_like(user_id,post_id):
assert_error(all([type(x) == types.IntType for x in [user_id,post_id]]),
'ParamError')
ula = UserLikeAsso.query.filter(UserLikeAsso.user_id == user_id).\
filter(UserLikeAsso.post_id == post_id).first()
if ula is None:
return
try:
db.session.delete(ula)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError',traceback.format_exc())
else:
return True
def get_user_liked_post(user_id,offset=0,limit=20):
assert_error(offset >= 0,'ParamError')
posts = Post.query.join(UserLikeAsso,Post.id == UserLikeAsso.post_id).\
filter(UserLikeAsso.user_id == user_id).\
order_by(UserLikeAsso.date_create.desc()).\
limit(limit).offset(offset).all()
_posts = []
for p in posts:
_u = p.user.json
_p = p.json
_p.update({'user':_u})
_posts.append(_p)
return _posts
def del_like(user_id, post_id):
assert_error(all([type(x) == types.IntType for x in [user_id, post_id]]),
'ParamError')
ula = UserLikeAsso.query.filter(UserLikeAsso.user_id == user_id).\
filter(UserLikeAsso.post_id == post_id).first()
if ula is None:
return
try:
db.session.delete(ula)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError', traceback.format_exc())
else:
return True
def new_insall(user_id,device_token,version='',device_type=''):
assert_error(type(user_id) == types.IntType,'ParamError')
assert_error(type(device_token) == types.StringType,'ParamError')
install = Install(user_id=user_id,
device_token=device_token,
version=version,
device_type=device_type)
try:
db.session.add(install)
db.session.commit()
except:
db.session.rollback()
raise
return install.json
def new_insall(user_id, device_token, version='', device_type=''):
assert_error(type(user_id) == types.IntType, 'ParamError')
assert_error(type(device_token) == types.StringType, 'ParamError')
install = Install(user_id=user_id,
device_token=device_token,
version=version,
device_type=device_type)
try:
db.session.add(install)
db.session.commit()
except:
db.session.rollback()
raise
return install.json
def get_user_by_uid(uid):
assert_error(type(uid) in (types.StringType,types.ListType),'ParamError')
multi = False
if type(uid) == types.ListType:
multi = True
else:
uid = uid,
users = User.query.filter(User.uid.in_(uid)).all()
if len(users) == 0:
raise BackendError('EmptyError','用户不存在')
if multi:
return [u.json for u in users]
else:
return users[0].json
def get_user(user_id):
multi = False
if type(user_id) == types.ListType:
assert_error(all([type(u) == types.IntType for u in user_id]),'ParamError')
multi = True
else:
assert_error(type(user_id) == types.IntType,'ParamError')
user_id = user_id,
users = User.query.filter(User.id.in_(user_id)).all()
if not users:
raise BackendError('EmptyError','用户不存在')
if multi:
return [u.json for u in users]
else:
return users[0].json
def add_post(title,
author_id,
video_url,
pic_small='',
pic_big='',
show=True,
recommended=False):
assert_error(type(title) == types.StringType, 'ParamError')
assert_error(type(author_id) == types.IntType, 'ParamError')
assert_error(type(video_url) == types.StringType, 'ParamError')
qd = {
'title': title,
'author_id': author_id,
'video_url': video_url,
'pic_small': pic_small,
'pic_big': pic_big,
'show': show,
'recommended': recommended,
}
try:
p = Post(**qd)
db.session.add(p)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError', traceback.format_exc())
return p.json
def add_comment(post_id, content, author_id):
assert_error(type(post_id) == types.IntType, 'ParamError')
assert_error(type(author_id) == types.IntType, 'ParamError')
assert_error(type(content) == types.StringType, 'ParamError')
qd = {'post_id': post_id, 'content': content, 'author_id': author_id}
co = Comment(**qd)
try:
db.session.add(co)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError', traceback.format_exc())
return co.json
def add_comment(post_id,content,author_id):
assert_error(type(post_id) == types.IntType,'ParamError')
assert_error(type(author_id) == types.IntType,'ParamError')
assert_error(type(content) == types.StringType,'ParamError')
qd = {
'post_id':post_id,
'content':content,
'author_id':author_id
}
co = Comment(**qd)
try:
db.session.add(co)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError',traceback.format_exc())
return co.json
def add_post(title,author_id,video_url,pic_small='',pic_big='',show=True,recommended=False):
assert_error(type(title) == types.StringType,'ParamError')
assert_error(type(author_id) == types.IntType,'ParamError')
assert_error(type(video_url) == types.StringType,'ParamError')
qd = {
'title':title,
'author_id':author_id,
'video_url':video_url,
'pic_small':pic_small,
'pic_big':pic_big,
'show':show,
'recommended':recommended,
}
try:
p = Post(**qd)
db.session.add(p)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError',traceback.format_exc())
return p.json
def add_user(username,photo_url,uid,signature='',access_token=''):
assert_error(type(username)==types.StringType,'ParamError','用户昵称应该为字符串')
assert_error(photo_url == None or type(photo_url) == types.StringType,'ParamError')
assert_error(type(uid) == types.StringType,'ParamError')
qd = {
'username':username,
'photo_url':photo_url or '',
'uid':uid,
'signature':signature,
'access_token':access_token
}
try:
user = User(**qd)
db.session.add(user)
db.session.commit()
except:
db.session.rollback()
raise BackendError('InternalError',traceback.format_exc())
return user.json
def get_activity_by_user(user_id,limit=30,offset=0):
assert_error(type(user_id) == types.IntType,'ParamError')
activitys = Activity.query.filter(Activity.to_id == user_id).\
order_by(db.desc(Activity.date_create)).limit(limit).offset(offset).all()
return [a.json for a in activitys]
def get_new_activity_count(user_id, last_update_time):
assert_error(type(user_id) == types.IntType, 'ParamError')
count = Activity.query.filter(Activity.to_id == user_id).\
filter(Activity.date_create > last_update_time).count()
return count
def is_email_exist(email):
assert_error(type(email) == types.StringType,'ParamError')
return True if _check_email(email) else False
def is_username_exist(username):
assert_error(type(username) == types.StringType,'ParamError')
return True if _check_username(username) else False
def get_user_follower(user_id,limit=50,offset=0):
assert_error(type(user_id) == types.IntType,'ParamError')
follows = User.query.join(UserFollowAsso,User.id == UserFollowAsso.user_id).\
filter(UserFollowAsso.user_id_to == user_id).limit(limit).offset(offset).all()
return [u.json for u in follows]
def get_new_activity_count(user_id,last_update_time):
assert_error(type(user_id) == types.IntType,'ParamError')
count = Activity.query.filter(Activity.to_id == user_id).\
filter(Activity.date_create > last_update_time).count()
return count
def get_activity_by_user(user_id, limit=30, offset=0):
assert_error(type(user_id) == types.IntType, 'ParamError')
activitys = Activity.query.filter(Activity.to_id == user_id).\
order_by(db.desc(Activity.date_create)).limit(limit).offset(offset).all()
return [a.json for a in activitys]
def get_tag(tag_id):
assert_error(type(tag_id) == types.IntType, 'ParamError')
tag = Tag.query.get(tag_id)
return tag.json
def get_comment(comment_id):
assert_error(type(comment_id) == types.IntType,'ParamError')
comm = Comment.query.get(comment_id)
return comm.json
def get_tag_post_count(tag_id):
assert_error(type(tag_id) == types.IntType, 'ParamError')
count = Tagging.query.filter(Tagging.tag_id == tag_id).count()
return count
def get_comment(comment_id):
assert_error(type(comment_id) == types.IntType, 'ParamError')
comm = Comment.query.get(comment_id)
return comm.json
def get_tag(tag_id):
assert_error(type(tag_id) == types.IntType, "ParamError")
tag = Tag.query.get(tag_id)
return tag.json
def get_tag_post_count(tag_id):
assert_error(type(tag_id) == types.IntType, "ParamError")
count = Tagging.query.filter(Tagging.tag_id == tag_id).count()
return count
