goa/goavreg.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 28 Apr 2010 12:15:52 +0200
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""goa specific registry
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"""
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__docformat__ = "restructuredtext en"
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from os import listdir
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from os.path import join, isdir
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from cubicweb import CW_SOFTWARE_ROOT
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from cubicweb.cwvreg import CubicWebVRegistry
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def _pkg_name(cube, module):
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    if cube is None:
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        return module
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    return 'cubes.%s.%s' % (cube, module)
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class GAEVRegistry(CubicWebVRegistry):
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    def set_schema(self, schema):
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        """disable reload hooks of cubicweb registry set_schema method"""
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        self.schema = schema
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    def load(self, applroot):
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        from cubicweb.goa import db
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        self.load_module(db) # AnyEntity class
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        # explicit loading, we don't want to load __init__.py
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        self.load_directory(join(CW_SOFTWARE_ROOT, 'entities'),
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                            'cubicweb.entities', skip=('__init__.py',))
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        self.load_directory(join(CW_SOFTWARE_ROOT, 'web', 'views'),
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                            'cubicweb.web.views')
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        self.load_directory(join(CW_SOFTWARE_ROOT, 'goa', 'appobjects'),
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                            'cubicweb.goa.appobjects')
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        for cube in reversed(self.config.cubes()):
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            self.load_cube(cube)
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        self.load_instance(applroot)
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    def load_directory(self, directory, cube, skip=()):
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        for filename in listdir(directory):
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            if filename[-3:] == '.py' and not filename in skip:
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                self._import('%s.%s' % (cube, filename[:-3]))
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    def load_cube(self, cube):
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        self._auto_load(self.config.cube_dir(cube),
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                        cube in self.config['included-cubes'],
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                        cube)
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    def load_instance(self, applroot):
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        self._auto_load(applroot, self.config['schema-type'] == 'dbmodel')
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    def _import(self, modname):
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        obj = __import__(modname)
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        for attr in modname.split('.')[1:]:
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            obj = getattr(obj, attr)
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        self.load_module(obj)
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    def _auto_load(self, path, loadschema, cube=None):
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        vobjpath = self.config.cube_appobject_path
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        for filename in listdir(path):
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            if filename[-3:] == '.py' and filename[:-3] in vobjpath:
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                self._import(_pkg_name(cube, filename[:-3]))
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            else:
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                abspath = join(path, filename)
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                if isdir(abspath) and filename in vobjpath:
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                    self.load_directory(abspath, _pkg_name(cube, filename))
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        if loadschema:
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            # when using db.Model defined schema, the defined class is used as
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            # entity class as well and so have to be registered
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            self._import(_pkg_name(cube, 'schema'))