[schema migration] import refactoring to fix #1109558 and enhances things on the way
the main pb demonstrated by #1109558 was due to the fact that in-memory schema
was updated in commit_event of operations. This is undesired in most cases,
since we want the modification to be taken into account in the interval between
the modification detection and the commit_event.
I've fixed this by merging in-memory schema / database alteration operations
for most important changes, doing in-memory schema changes as they are detected
and implementing a revertcommit_event method to revert them if necessary (with
exception for removal of stuff from the schema, where this is simply done in a
postcommit_event methods).
Also, I've benefited from this to support reverting of database alteration for
some operations (more to be done there), and to move so system source alteration
code to the native source code for a nicer design.
There may be some more stuff in syncschema.py that would benefit from similar
changes, but most important things are done (at least to close #1109558, w/
unittest_syncschema and unittest_migration green).
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""twisted server configurations:
* the "twisted" configuration to get a web instance running in a standalone
twisted web server which talk to a repository server using Pyro
* the "all-in-one" configuration to get a web instance running in a twisted
web server integrating a repository server in the same process (only available
if the repository part of the software is installed
"""
__docformat__ = "restructuredtext en"
from os.path import join
from logilab.common.configuration import Method
from cubicweb.web.webconfig import WebConfiguration, merge_options
class TwistedConfiguration(WebConfiguration):
"""web instance (in a twisted web server) client of a RQL server"""
name = 'twisted'
options = merge_options((
# ctl configuration
('port',
{'type' : 'int',
'default': None,
'help': 'http server port number (default to 8080)',
'group': 'web', 'level': 0,
}),
('max-post-length',
{'type' : 'bytes',
'default': '100MB',
'help': 'maximum length of HTTP request. Default to 100 MB.',
'group': 'web', 'level': 1,
}),
('profile',
{'type' : 'string',
'default': None,
'help': 'profile code and use the specified file to store stats if this option is set',
'group': 'web', 'level': 3,
}),
('host',
{'type' : 'string',
'default': None,
'help': 'host name if not correctly detectable through gethostname',
'group': 'main', 'level': 1,
}),
('pid-file',
{'type' : 'string',
'default': Method('default_pid_file'),
'help': 'repository\'s pid file',
'group': 'main', 'level': 2,
}),
('uid',
{'type' : 'string',
'default': None,
'help': 'if this option is set, use the specified user to start \
the repository rather than the user running the command',
'group': 'main', 'level': WebConfiguration.mode == 'system'
}),
('session-time',
{'type' : 'time',
'default': '30min',
'help': 'session expiration time, default to 30 minutes',
'group': 'main', 'level': 1,
}),
('pyro-server',
{'type' : 'yn',
# pyro is only a recommends by default, so don't activate it here
'default': False,
'help': 'run a pyro server',
'group': 'main', 'level': 1,
}),
) + WebConfiguration.options)
def server_file(self):
return join(self.apphome, '%s-%s.py' % (self.appid, self.name))
def default_base_url(self):
from socket import gethostname
return 'http://%s:%s/' % (self['host'] or gethostname(), self['port'] or 8080)
try:
from cubicweb.server.serverconfig import ServerConfiguration
class AllInOneConfiguration(TwistedConfiguration, ServerConfiguration):
"""repository and web instance in the same twisted process"""
name = 'all-in-one'
repo_method = 'inmemory'
options = merge_options(TwistedConfiguration.options
+ ServerConfiguration.options)
cubicweb_appobject_path = TwistedConfiguration.cubicweb_appobject_path | ServerConfiguration.cubicweb_appobject_path
cube_appobject_path = TwistedConfiguration.cube_appobject_path | ServerConfiguration.cube_appobject_path
def pyro_enabled(self):
"""tell if pyro is activated for the in memory repository"""
return self['pyro-server']
except ImportError:
pass