##// END OF EJS Templates
caches: use individual namespaces per user to prevent beaker caching problems....
caches: use individual namespaces per user to prevent beaker caching problems. - especially for mysql in case large number of data in caches there could be critical errors storing cache, and thus preventing users from authentication. This is caused by the fact that we used single namespace for ALL users. It means it grew as number of users grew reaching mysql single column limit. This changes the behaviour and now we use namespace per-user it means that each user-id will have it's own cache namespace fragmenting maximum column data to a single user cache. Which we should never reach.

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db_1_1_0.py
114 lines | 4.1 KiB | text/x-python | PythonLexer
project: added all source files and assets
r1 # -*- coding: utf-8 -*-
release: update copyright year to 2018
r2487 # Copyright (C) 2010-2018 RhodeCode GmbH
project: added all source files and assets
r1 #
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
from sqlalchemy import *
from sqlalchemy.exc import DatabaseError
from sqlalchemy.orm import relation, backref, class_mapper
from sqlalchemy.orm.session import Session
from rhodecode.model.meta import Base
class BaseModel(object):
"""Base Model for all classess
"""
@classmethod
def _get_keys(cls):
"""return column names for this model """
return class_mapper(cls).c.keys()
def get_dict(self):
"""return dict with keys and values corresponding
to this model data """
d = {}
for k in self._get_keys():
d[k] = getattr(self, k)
return d
def get_appstruct(self):
"""return list with keys and values tupples corresponding
to this model data """
l = []
for k in self._get_keys():
l.append((k, getattr(self, k),))
return l
def populate_obj(self, populate_dict):
"""populate model with data from given populate_dict"""
for k in self._get_keys():
if k in populate_dict:
setattr(self, k, populate_dict[k])
@classmethod
def query(cls):
return Session.query(cls)
@classmethod
def get(cls, id_):
if id_:
return cls.query().get(id_)
@classmethod
def getAll(cls):
return cls.query().all()
@classmethod
def delete(cls, id_):
obj = cls.query().get(id_)
Session.delete(obj)
Session.commit()
class UserFollowing(Base, BaseModel):
__tablename__ = 'user_followings'
__table_args__ = (UniqueConstraint('user_id', 'follows_repository_id'),
UniqueConstraint('user_id', 'follows_user_id')
, {'useexisting':True})
user_following_id = Column("user_following_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
user_id = Column("user_id", Integer(), ForeignKey(u'users.user_id'), nullable=False, unique=None, default=None)
follows_repo_id = Column("follows_repository_id", Integer(), ForeignKey(u'repositories.repo_id'), nullable=True, unique=None, default=None)
follows_user_id = Column("follows_user_id", Integer(), ForeignKey(u'users.user_id'), nullable=True, unique=None, default=None)
user = relation('User', primaryjoin='User.user_id==UserFollowing.user_id')
follows_user = relation('User', primaryjoin='User.user_id==UserFollowing.follows_user_id')
follows_repository = relation('Repository')
class CacheInvalidation(Base, BaseModel):
__tablename__ = 'cache_invalidation'
__table_args__ = (UniqueConstraint('cache_key'), {'useexisting':True})
cache_id = Column("cache_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
cache_key = Column("cache_key", String(None), nullable=True, unique=None, default=None)
cache_args = Column("cache_args", String(None), nullable=True, unique=None, default=None)
cache_active = Column("cache_active", Boolean(), nullable=True, unique=None, default=False)
def __init__(self, cache_key, cache_args=''):
self.cache_key = cache_key
self.cache_args = cache_args
self.cache_active = False
def __repr__(self):
return "<CacheKey('%s:%s')>" % (self.cache_id, self.cache_key)