import caching_query
from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
from beaker import cache
import os
# Beaker CacheManager. A home base for cache configurations.
cache_manager = cache.CacheManager()
# scoped_session. Apply our custom CachingQuery class to it,
# using a callable that will associate the cache_manager
# with the Query.
Session = scoped_session(
sessionmaker(
query_cls=caching_query.query_callable(cache_manager)
)
)
# global declarative base class.
Base = declarative_base()
root = "./beaker_data/"
if not os.path.exists(root):
raw_input("Will create datafiles in %r.\n"
"To reset the cache + database, delete this directory.\n"
"Press enter to continue.\n" % root
)
os.makedirs(root)
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
from dogpile.cache.region import make_region
import os
import md5
# dogpile cache regions. A home base for cache configurations.
regions = {}
# scoped_session. Apply our custom CachingQuery class to it,
# using a callable that will associate the dictionary
# of regions with the Query.
Session = scoped_session(
sessionmaker(
query_cls=caching_query.query_callable(regions)
)
)
# global declarative base class.
Base = declarative_base()
root = "./dogpile_data/"
if not os.path.exists(root):
raw_input("Will create datafiles in %r.\n"
"To reset the cache + database, delete this directory.\n"
"Press enter to continue.\n" % root
)
os.makedirs(root)
if config['DBCACHE_SVR']:
import dogpile.cache
import caching_query
cache_region = dogpile.cache.make_region()
cache_settings = {
"cache.redis.backend": "dogpile.cache.redis",
"cache.redis.arguments.host": config['DBCACHE_SVR'],
"cache.redis.arguments.port": 6379,
}
cache_region.configure_from_config(cache_settings, "cache.redis.")
cache_regions = {"default": cache_region}
FromCache = caching_query.FromCache
DB_Session = scoped_session(sessionmaker(
bind=engine, query_cls=caching_query.query_callable(cache_regions)))
else:
class FromCache(MapperOption):
pass
DB_Session = scoped_session(sessionmaker(bind=engine))
# 考虑更灵活的login机制，如login_required("student","teacher") 可以只让学生和老师登陆
def login_required(user_type="any"):
"""Decorate methods with this to require that the user be logged in."""
def decorator(method):
@functools.wraps(method)
def wrapper(self, *args, **kwargs):
if not self.current_user:
"""
import caching_query
from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
from beaker import cache
import os
# Beaker CacheManager. A home base for cache configurations.
cache_manager = cache.CacheManager()
# scoped_session. Apply our custom CachingQuery class to it,
# using a callable that will associate the cache_manager
# with the Query.
Session = scoped_session(
sessionmaker(query_cls=caching_query.query_callable(cache_manager)))
# global declarative base class.
Base = declarative_base()
root = "./beaker_data/"
if not os.path.exists(root):
raw_input("Will create datafiles in %r.\n"
"To reset the cache + database, delete this directory.\n"
"Press enter to continue.\n" % root)
os.makedirs(root)
dbfile = os.path.join(root, "beaker_demo.db")
engine = create_engine('sqlite:///%s' % dbfile, echo=True)
Session.configure(bind=engine)
import os
from hashlib import md5
import sys
py2k = sys.version_info < (3, 0)
if py2k:
input = raw_input
# dogpile cache regions. A home base for cache configurations.
regions = {}
# scoped_session. Apply our custom CachingQuery class to it,
# using a callable that will associate the dictionary
# of regions with the Query.
Session = scoped_session(
sessionmaker(query_cls=caching_query.query_callable(regions)))
# global declarative base class.
Base = declarative_base()
root = "./dogpile_data/"
if not os.path.exists(root):
input("Will create datafiles in %r.\n"
"To reset the cache + database, delete this directory.\n"
"Press enter to continue.\n" % root)
os.makedirs(root)
dbfile = os.path.join(root, "dogpile_demo.db")
engine = create_engine('sqlite:///%s' % dbfile, echo=True)
Session.configure(bind=engine)
from sqlalchemy.orm import backref
from sqlalchemy.orm import joinedload
import sqlalchemy as sa
from caching_query import FromCache
from caching_query import RelationshipCache
from caching_query import query_callable
from dogpile.cache import make_region
import hashlib
cache_region = make_region()
regions = {"default": cache_region}
DBSession = scoped_session(sessionmaker(query_cls=query_callable(regions)))
def md5_key_mangler(key):
"""Receive cache keys as long concatenated strings;
distill them into an md5 hash.
"""
d = hashlib.md5(key.encode('utf-8'))
return d.hexdigest()
class BaseModel(object):
@declared_attr
def pk(self):
return sa.Column(sa.Integer, primary_key=True)
