diff -r eb04ac3a8327 -r 3f4bdea2abbf iro/model/pool.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/iro/model/pool.py Thu Sep 27 17:15:46 2012 +0200 @@ -0,0 +1,47 @@ +# Copyright (c) 2012 netzguerilla.net +# +# This file is part of Iro. +# +# Permission is hereby granted, free of charge, to any person obtaining a copy of +# this software and associated documentation files (the "Software"), to deal in +# the Software without restriction, including without limitation the rights to use, +# copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the +# #Software, and to permit persons to whom the Software is furnished to do so, +# subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A +# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +from decorator import decorator +import sqlalchemy +class Data: + """A very simple class to save the thread pool for database requests""" + def __init__(self): + self.pool = None + +data = Data() +"""holds connection to the actual thread pool for the database requests""" + +def setPool(pool): + """setting the thread pool""" + data.pool = pool + +@decorator +def runInDBPool(f,*args,**kwargs): + """Decorator to run DB queries in Twisted's thread pool. + + If last argument is a session object, the function is called directly. + """ + if isinstance(args[-1],sqlalchemy.orm.session.Session): + return f(*args,**kwargs) + else: + return data.pool.run(f, *args, **kwargs) + +