vregistry.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 15 Jun 2010 18:00:26 +0200
branchstable
changeset 5748 487ab6ac90cc
parent 5693 8af6623f3d4e
child 5752 b0bb553e3be4
permissions -rw-r--r--
[auto-reload] we should never call load_module with use_sys=False, that may lead to inconsistency with module interdependancy (eg module get imported by another one, then is reimported by the vreg to load its appobjects. Cleanup of sys.modules done before reloading should be enough.
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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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"""
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* the vregistry handles various types of objects interacting
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  together. The vregistry handles registration of dynamically loaded
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  objects and provides a convenient api to access those objects
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  according to a context
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* to interact with the vregistry, objects should inherit from the
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  AppObject abstract class
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* the selection procedure has been generalized by delegating to a
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  selector, which is responsible to score the appobject according to the
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  current state (req, rset, row, col). At the end of the selection, if
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  a appobject class has been found, an instance of this class is
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  returned. The selector is instantiated at appobject registration
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"""
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__docformat__ = "restructuredtext en"
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import sys
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from os import listdir, stat
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from os.path import dirname, join, realpath, isdir, exists
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from logging import getLogger
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from warnings import warn
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from logilab.common.deprecation import deprecated, class_moved
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from logilab.common.logging_ext import set_log_methods
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from cubicweb import CW_SOFTWARE_ROOT
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from cubicweb import RegistryNotFound, ObjectNotFound, NoSelectableObject
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from cubicweb.appobject import AppObject
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def _toload_info(path, extrapath, _toload=None):
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    """return a dictionary of <modname>: <modpath> and an ordered list of
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    (file, module name) to load
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    """
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    from logilab.common.modutils import modpath_from_file
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    if _toload is None:
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        assert isinstance(path, list)
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        _toload = {}, []
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    for fileordir in path:
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        if isdir(fileordir) and exists(join(fileordir, '__init__.py')):
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            subfiles = [join(fileordir, fname) for fname in listdir(fileordir)]
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            _toload_info(subfiles, extrapath, _toload)
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        elif fileordir[-3:] == '.py':
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            modpath = modpath_from_file(fileordir, extrapath)
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            # omit '__init__' from package's name to avoid loading that module
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            # once for each name when it is imported by some other appobject
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            # module. This supposes import in modules are done as::
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            #
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            #   from package import something
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            #
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            # not::
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            #
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            #  from package.__init__ import something
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            #
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            # which seems quite correct.
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            if modpath[-1] == '__init__':
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                modpath.pop()
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            modname = '.'.join(modpath)
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            _toload[0][modname] = fileordir
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            _toload[1].append((fileordir, modname))
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    return _toload
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def classid(cls):
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    """returns a unique identifier for an appobject class"""
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    return '%s.%s' % (cls.__module__, cls.__name__)
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def class_regid(cls):
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    """returns a unique identifier for an appobject class"""
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    if 'id' in cls.__dict__:
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        warn('[3.6] %s.%s: id is deprecated, use __regid__'
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             % (cls.__module__, cls.__name__), DeprecationWarning)
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        cls.__regid__ = cls.id
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    if hasattr(cls, 'id') and not isinstance(cls.id, property):
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        return cls.id
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    return cls.__regid__
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def class_registries(cls, registryname):
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    if registryname:
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        return (registryname,)
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    return cls.__registries__
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class Registry(dict):
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    def __init__(self, config):
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        super(Registry, self).__init__()
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        self.config = config
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    def __getitem__(self, name):
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        """return the registry (dictionary of class objects) associated to
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        this name
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        """
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        try:
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            return super(Registry, self).__getitem__(name)
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        except KeyError:
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            raise ObjectNotFound(name), None, sys.exc_info()[-1]
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    def initialization_completed(self):
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        for appobjects in self.itervalues():
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            for appobjectcls in appobjects:
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                appobjectcls.__registered__(self)
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    def register(self, obj, oid=None, clear=False):
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        """base method to add an object in the registry"""
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        assert not '__abstract__' in obj.__dict__
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        oid = oid or class_regid(obj)
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        assert oid
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        if clear:
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            appobjects = self[oid] =  []
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        else:
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            appobjects = self.setdefault(oid, [])
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        assert not obj in appobjects, \
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               'object %s is already registered' % obj
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        appobjects.append(obj)
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    def register_and_replace(self, obj, replaced):
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        # XXXFIXME this is a duplication of unregister()
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        # remove register_and_replace in favor of unregister + register
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        # or simplify by calling unregister then register here
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        if not isinstance(replaced, basestring):
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            replaced = classid(replaced)
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        registered_objs = self.get(class_regid(obj), ())
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        for index, registered in enumerate(registered_objs):
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            if classid(registered) == replaced:
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                del registered_objs[index]
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                break
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        else:
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            self.warning('trying to replace an unregistered view %s by %s',
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                         replaced, obj)
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        self.register(obj)
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    def unregister(self, obj):
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        clsid = classid(obj)
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        oid = class_regid(obj)
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        for registered in self.get(oid, ()):
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            # use classid() to compare classes because vreg will probably
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            # have its own version of the class, loaded through execfile
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            if classid(registered) == clsid:
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                self[oid].remove(registered)
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                break
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        else:
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            self.warning('can\'t remove %s, no id %s in the registry',
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                         clsid, oid)
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    def all_objects(self):
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        """return a list containing all objects in this registry.
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        """
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        result = []
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        for objs in self.values():
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            result += objs
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        return result
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    # dynamic selection methods ################################################
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    def object_by_id(self, oid, *args, **kwargs):
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        """return object with the `oid` identifier. Only one object is expected
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        to be found.
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        raise :exc:`ObjectNotFound` if not object with id <oid> in <registry>
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        raise :exc:`AssertionError` if there is more than one object there
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        """
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        objects = self[oid]
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        assert len(objects) == 1, objects
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        return objects[0](*args, **kwargs)
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    def select(self, oid, *args, **kwargs):
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        """return the most specific object among those with the given oid
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        according to the given context.
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   189
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        raise :exc:`ObjectNotFound` if not object with id <oid> in <registry>
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        raise :exc:`NoSelectableObject` if not object apply
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        """
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        return self._select_best(self[oid], *args, **kwargs)
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    def select_or_none(self, oid, *args, **kwargs):
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        """return the most specific object among those with the given oid
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        according to the given context, or None if no object applies.
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        """
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        try:
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            return self.select(oid, *args, **kwargs)
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        except (NoSelectableObject, ObjectNotFound):
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            return None
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    select_object = deprecated('[3.6] use select_or_none instead of select_object'
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                               )(select_or_none)
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    def possible_objects(self, *args, **kwargs):
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        """return an iterator on possible objects in this registry for the given
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        context
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        """
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        for appobjects in self.itervalues():
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            try:
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                yield self._select_best(appobjects, *args, **kwargs)
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            except NoSelectableObject:
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                continue
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    def _select_best(self, appobjects, *args, **kwargs):
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        """return an instance of the most specific object according
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        to parameters
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        raise `NoSelectableObject` if not object apply
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        """
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        if len(args) > 1:
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            warn('[3.5] only the request param can not be named when calling select*',
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                 DeprecationWarning, stacklevel=3)
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        score, winners = 0, None
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        for appobject in appobjects:
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            appobjectscore = appobject.__select__(appobject, *args, **kwargs)
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            if appobjectscore > score:
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                score, winners = appobjectscore, [appobject]
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            elif appobjectscore > 0 and appobjectscore == score:
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                winners.append(appobject)
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        if winners is None:
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            raise NoSelectableObject('args: %s\nkwargs: %s %s'
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                                     % (args, kwargs.keys(),
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                                        [repr(v) for v in appobjects]))
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        if len(winners) > 1:
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            # log in production environement, error while debugging
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            if self.config.debugmode:
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                raise Exception('select ambiguity, args: %s\nkwargs: %s %s'
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                                % (args, kwargs.keys(),
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                                   [repr(v) for v in winners]))
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            self.error('select ambiguity, args: %s\nkwargs: %s %s',
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                       args, kwargs.keys(), [repr(v) for v in winners])
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        # return the result of calling the appobject
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        return winners[0](*args, **kwargs)
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    select_best = deprecated('[3.6] select_best is now private')(_select_best)
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class VRegistry(dict):
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    """class responsible to register, propose and select the various
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    elements used to build the web interface. Currently, we have templates,
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    views, actions and components.
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    """
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    def __init__(self, config):
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        super(VRegistry, self).__init__()
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        self.config = config
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        # need to clean sys.path this to avoid import confusion pb (i.e.  having
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        # the same module loaded as 'cubicweb.web.views' subpackage and as
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        # views' or 'web.views' subpackage. This is mainly for testing purpose,
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        # we should'nt need this in production environment
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        for webdir in (join(dirname(realpath(__file__)), 'web'),
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                       join(dirname(__file__), 'web')):
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            if webdir in sys.path:
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                sys.path.remove(webdir)
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        if CW_SOFTWARE_ROOT in sys.path:
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            sys.path.remove(CW_SOFTWARE_ROOT)
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    def reset(self):
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        # don't use self.clear, we want to keep existing subdictionaries
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        for subdict in self.itervalues():
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            subdict.clear()
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        self._lastmodifs = {}
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    def __getitem__(self, name):
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        """return the registry (dictionary of class objects) associated to
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        this name
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        """
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        try:
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            return super(VRegistry, self).__getitem__(name)
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        except KeyError:
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            raise RegistryNotFound(name), None, sys.exc_info()[-1]
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    # dynamic selection methods ################################################
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   287
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    @deprecated('[3.4] use vreg[registry].object_by_id(oid, *args, **kwargs)')
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   289
    def object_by_id(self, registry, oid, *args, **kwargs):
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        """return object in <registry>.<oid>
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   291
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   292
        raise `ObjectNotFound` if not object with id <oid> in <registry>
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   293
        raise `AssertionError` if there is more than one object there
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        """
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   295
        return self[registry].object_by_id(oid)
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   296
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    @deprecated('[3.4] use vreg[registry].select(oid, *args, **kwargs)')
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   298
    def select(self, registry, oid, *args, **kwargs):
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   299
        """return the most specific object in <registry>.<oid> according to
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   300
        the given context
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diff changeset
   301
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diff changeset
   302
        raise `ObjectNotFound` if not object with id <oid> in <registry>
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   303
        raise `NoSelectableObject` if not object apply
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diff changeset
   304
        """
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parents: 2589
diff changeset
   305
        return self[registry].select(oid, *args, **kwargs)
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diff changeset
   306
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diff changeset
   307
    @deprecated('[3.4] use vreg[registry].select_or_none(oid, *args, **kwargs)')
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diff changeset
   308
    def select_object(self, registry, oid, *args, **kwargs):
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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diff changeset
   309
        """return the most specific object in <registry>.<oid> according to
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diff changeset
   310
        the given context, or None if no object apply
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diff changeset
   311
        """
2770
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diff changeset
   312
        return self[registry].select_or_none(oid, *args, **kwargs)
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parents: 2589
diff changeset
   313
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diff changeset
   314
    @deprecated('[3.4] use vreg[registry].possible_objects(*args, **kwargs)')
2650
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parents: 2589
diff changeset
   315
    def possible_objects(self, registry, *args, **kwargs):
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   316
        """return an iterator on possible objects in <registry> for the given
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   317
        context
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   318
        """
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   319
        return self[registry].possible_objects(*args, **kwargs)
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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diff changeset
   320
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parents: 660
diff changeset
   321
    # methods for explicit (un)registration ###################################
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parents: 665
diff changeset
   322
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diff changeset
   323
    # default class, when no specific class set
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diff changeset
   324
    REGISTRY_FACTORY = {None: Registry}
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diff changeset
   325
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   326
    def registry_class(self, regid):
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   327
        try:
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   328
            return self.REGISTRY_FACTORY[regid]
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parents: 2589
diff changeset
   329
        except KeyError:
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   330
            return self.REGISTRY_FACTORY[None]
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   331
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   332
    def setdefault(self, regid):
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   333
        try:
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   334
            return self[regid]
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   335
        except KeyError:
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   336
            self[regid] = self.registry_class(regid)(self.config)
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   337
            return self[regid]
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2589
diff changeset
   338
668
61b2328f9ed9 rename registration callback, clear argument to register
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parents: 665
diff changeset
   339
#     def clear(self, key):
61b2328f9ed9 rename registration callback, clear argument to register
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parents: 665
diff changeset
   340
#         regname, oid = key.split('.')
61b2328f9ed9 rename registration callback, clear argument to register
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parents: 665
diff changeset
   341
#         self[regname].pop(oid, None)
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2035
diff changeset
   342
695
356da23c57f1 try a register_all method
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parents: 693
diff changeset
   343
    def register_all(self, objects, modname, butclasses=()):
5143
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   344
        """register all `objects` given. Objects which are not from the module
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   345
        `modname` or which are in `butclasses` won't be registered.
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   346
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   347
        Typical usage is:
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   348
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   349
        .. sourcecode:: python
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   350
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   351
            vreg.register_all(globals().values(), __name__, (ClassIWantToRegisterExplicitly,))
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   352
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   353
        So you get partially automatic registration, keeping manual registration
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   354
        for some object (to use
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   355
        :meth:`~cubicweb.cwvreg.CubicWebRegistry.register_and_replace` for
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   356
        instance)
43afbdd5c8b4 improved doc on selectors an vregistry
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parents: 5103
diff changeset
   357
        """
695
356da23c57f1 try a register_all method
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parents: 693
diff changeset
   358
        for obj in objects:
356da23c57f1 try a register_all method
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parents: 693
diff changeset
   359
            try:
356da23c57f1 try a register_all method
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parents: 693
diff changeset
   360
                if obj.__module__ != modname or obj in butclasses:
356da23c57f1 try a register_all method
sylvain.thenault@logilab.fr
parents: 693
diff changeset
   361
                    continue
2829
054a8805da52 turn id into __id__
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2821
diff changeset
   362
                oid = class_regid(obj)
695
356da23c57f1 try a register_all method
sylvain.thenault@logilab.fr
parents: 693
diff changeset
   363
            except AttributeError:
356da23c57f1 try a register_all method
sylvain.thenault@logilab.fr
parents: 693
diff changeset
   364
                continue
2587
79bbc5045288 [vreg] consider __abstract__ in register_all
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2308
diff changeset
   365
            if oid and not '__abstract__' in obj.__dict__:
5093
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   366
                self.register(obj, oid=oid)
1433
091ac3ba5d51 remove trailing white spaces
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parents: 1432
diff changeset
   367
668
61b2328f9ed9 rename registration callback, clear argument to register
sylvain.thenault@logilab.fr
parents: 665
diff changeset
   368
    def register(self, obj, registryname=None, oid=None, clear=False):
5143
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   369
        """register `obj` application object into `registryname` or
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   370
        `obj.__registry__` if not specified, with identifier `oid` or
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   371
        `obj.__regid__` if not specified.
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   372
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   373
        If `clear` is true, all objects with the same identifier will be
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   374
        previously unregistered.
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   375
        """
707
21a59b468f1a __selectors__ -> __select__
sylvain.thenault@logilab.fr
parents: 698
diff changeset
   376
        assert not '__abstract__' in obj.__dict__
665
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   377
        try:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   378
            vname = obj.__name__
665
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   379
        except AttributeError:
5096
e25979a6d795 [cleanup] add some notes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5095
diff changeset
   380
            # XXX may occurs?
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   381
            vname = obj.__class__.__name__
5093
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   382
        for registryname in class_registries(obj, registryname):
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   383
            registry = self.setdefault(registryname)
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   384
            registry.register(obj, oid=oid, clear=clear)
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   385
            self.debug('registered appobject %s in registry %s with id %s',
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   386
                       vname, registryname, oid or class_regid(obj))
5651
95f7285e85e2 [vreg] ensure you can register an object from module not known yet.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 5607
diff changeset
   387
        self._loadedmods.setdefault(obj.__module__, {})[classid(obj)] = obj
665
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   388
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   389
    def unregister(self, obj, registryname=None):
5143
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   390
        """unregister `obj` application object from the registry `registryname` or
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   391
        `obj.__registry__` if not specified.
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   392
        """
5093
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   393
        for registryname in class_registries(obj, registryname):
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   394
            self[registryname].unregister(obj)
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   395
665
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   396
    def register_and_replace(self, obj, replaced, registryname=None):
5143
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   397
        """register `obj` application object into `registryname` or
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   398
        `obj.__registry__` if not specified. If found, the `replaced` object
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   399
        will be unregistered first (else a warning will be issued as it's
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   400
        generally unexpected).
43afbdd5c8b4 improved doc on selectors an vregistry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5103
diff changeset
   401
        """
5093
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   402
        for registryname in class_registries(obj, registryname):
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   403
            self[registryname].register_and_replace(obj, replaced)
665
1305da1ce3f9 reorganize a bit, some cleanup and fixes
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   404
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   405
    # initialization methods ###################################################
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   406
2035
946ed7349e1a bugfix: extrapath is optional arg for init_registration
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2025
diff changeset
   407
    def init_registration(self, path, extrapath=None):
1316
6d71d38822ee introduce init_registration method and call it in repo initialization
sylvain.thenault@logilab.fr
parents: 1310
diff changeset
   408
        # compute list of all modules that have to be loaded
2025
010a4b0fe855 fix lookup of files to load when using CW_CUBES_PATH
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   409
        self._toloadmods, filemods = _toload_info(path, extrapath)
2651
3ad936634d2a [registry] when a source file is changed, reset and reload the whole registry
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2589
diff changeset
   410
        # XXX is _loadedmods still necessary ? It seems like it's useful
3ad936634d2a [registry] when a source file is changed, reset and reload the whole registry
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2589
diff changeset
   411
        #     to avoid loading same module twice, especially with the
3ad936634d2a [registry] when a source file is changed, reset and reload the whole registry
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2589
diff changeset
   412
        #     _load_ancestors_then_object logic but this needs to be checked
1316
6d71d38822ee introduce init_registration method and call it in repo initialization
sylvain.thenault@logilab.fr
parents: 1310
diff changeset
   413
        self._loadedmods = {}
6d71d38822ee introduce init_registration method and call it in repo initialization
sylvain.thenault@logilab.fr
parents: 1310
diff changeset
   414
        return filemods
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   415
5748
487ab6ac90cc [auto-reload] we should never call load_module with use_sys=False, that may lead to inconsistency with module interdependancy (eg module get imported by another one, then is reimported by the vreg to load its appobjects. Cleanup of sys.modules done before reloading should be enough.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5693
diff changeset
   416
    def register_objects(self, path, extrapath=None):
2476
1294a6bdf3bf application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2381
diff changeset
   417
        # load views from each directory in the instance's path
2025
010a4b0fe855 fix lookup of files to load when using CW_CUBES_PATH
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   418
        filemods = self.init_registration(path, extrapath)
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   419
        for filepath, modname in filemods:
5748
487ab6ac90cc [auto-reload] we should never call load_module with use_sys=False, that may lead to inconsistency with module interdependancy (eg module get imported by another one, then is reimported by the vreg to load its appobjects. Cleanup of sys.modules done before reloading should be enough.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5693
diff changeset
   420
            self.load_file(filepath, modname)
5273
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   421
        self.initialization_completed()
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   422
4490
d45cde54d464 backport stable branch and some vreg cleanups:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4436
diff changeset
   423
    def initialization_completed(self):
d45cde54d464 backport stable branch and some vreg cleanups:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4436
diff changeset
   424
        for regname, reg in self.iteritems():
d45cde54d464 backport stable branch and some vreg cleanups:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4436
diff changeset
   425
            reg.initialization_completed()
d45cde54d464 backport stable branch and some vreg cleanups:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4436
diff changeset
   426
5273
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   427
    def _mdate(self, filepath):
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   428
        try:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   429
            return stat(filepath)[-2]
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   430
        except OSError:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   431
            # this typically happens on emacs backup files (.#foo.py)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   432
            self.warning('Unable to load %s. It is likely to be a backup file',
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   433
                         filepath)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   434
            return None
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   435
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   436
    def is_reload_needed(self, path):
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   437
        """return True if something module changed and the registry should be
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   438
        reloaded
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   439
        """
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   440
        lastmodifs = self._lastmodifs
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   441
        for fileordir in path:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   442
            if isdir(fileordir) and exists(join(fileordir, '__init__.py')):
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   443
                if self.is_reload_needed([join(fileordir, fname)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   444
                                          for fname in listdir(fileordir)]):
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   445
                    return True
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   446
            elif fileordir[-3:] == '.py':
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   447
                mdate = self._mdate(fileordir)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   448
                if mdate is None:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   449
                    continue # backup file, see _mdate implementation
5607
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   450
                elif "flymake" in fileordir:
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   451
                    # flymake + pylint in use, don't consider these they will corrupt the registry
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   452
                    continue
5273
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   453
                if fileordir not in lastmodifs or lastmodifs[fileordir] < mdate:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   454
                    self.info('File %s changed since last visit', fileordir)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   455
                    return True
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   456
        return False
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   457
5748
487ab6ac90cc [auto-reload] we should never call load_module with use_sys=False, that may lead to inconsistency with module interdependancy (eg module get imported by another one, then is reimported by the vreg to load its appobjects. Cleanup of sys.modules done before reloading should be enough.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5693
diff changeset
   458
    def load_file(self, filepath, modname):
2651
3ad936634d2a [registry] when a source file is changed, reset and reload the whole registry
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2589
diff changeset
   459
        """load app objects from a python file"""
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   460
        from logilab.common.modutils import load_module_from_name
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   461
        if modname in self._loadedmods:
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   462
            return
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   463
        self._loadedmods[modname] = {}
5273
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   464
        mdate = self._mdate(filepath)
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   465
        if mdate is None:
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   466
            return # backup file, see _mdate implementation
5607
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   467
        elif "flymake" in filepath:
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   468
            # flymake + pylint in use, don't consider these they will corrupt the registry
38d43dc5ee57 skip flymake junk when reloading
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5424
diff changeset
   469
            return
3565
4db55832e8a9 [vreg] fix reloading pb w/ module level error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3071
diff changeset
   470
        # set update time before module loading, else we get some reloading
4db55832e8a9 [vreg] fix reloading pb w/ module level error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3071
diff changeset
   471
        # weirdness in case of syntax error or other error while importing the
4db55832e8a9 [vreg] fix reloading pb w/ module level error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3071
diff changeset
   472
        # module
5273
c4caef6f09c9 [vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5143
diff changeset
   473
        self._lastmodifs[filepath] = mdate
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
        # load the module
5748
487ab6ac90cc [auto-reload] we should never call load_module with use_sys=False, that may lead to inconsistency with module interdependancy (eg module get imported by another one, then is reimported by the vreg to load its appobjects. Cleanup of sys.modules done before reloading should be enough.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5693
diff changeset
   475
        module = load_module_from_name(modname)
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   476
        self.load_module(module)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   477
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   478
    def load_module(self, module):
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   479
        self.info('loading %s', module)
668
61b2328f9ed9 rename registration callback, clear argument to register
sylvain.thenault@logilab.fr
parents: 665
diff changeset
   480
        if hasattr(module, 'registration_callback'):
61b2328f9ed9 rename registration callback, clear argument to register
sylvain.thenault@logilab.fr
parents: 665
diff changeset
   481
            module.registration_callback(self)
660
5233a9457f6b work in progress, draft for manual registration
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 652
diff changeset
   482
        else:
5233a9457f6b work in progress, draft for manual registration
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 652
diff changeset
   483
            for objname, obj in vars(module).items():
5233a9457f6b work in progress, draft for manual registration
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 652
diff changeset
   484
                if objname.startswith('_'):
5233a9457f6b work in progress, draft for manual registration
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 652
diff changeset
   485
                    continue
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   486
                self._load_ancestors_then_object(module.__name__, obj)
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   487
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   488
    def _load_ancestors_then_object(self, modname, appobjectcls):
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   489
        """handle automatic appobject class registration:
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   490
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   491
        - first ensure parent classes are already registered
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   492
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   493
        - class with __abstract__ == True in their local dictionnary or
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   494
          with a name starting starting by an underscore are not registered
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   495
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   496
        - appobject class needs to have __registry__ and __regid__ attributes
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   497
          set to a non empty string to be registered.
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   498
        """
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   499
        # imported classes
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   500
        objmodname = getattr(appobjectcls, '__module__', None)
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   501
        if objmodname != modname:
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   502
            if objmodname in self._toloadmods:
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   503
                self.load_file(self._toloadmods[objmodname], objmodname)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   504
            return
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   505
        # skip non registerable object
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   506
        try:
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   507
            if not issubclass(appobjectcls, AppObject):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   508
                return
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   509
        except TypeError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   510
            return
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   511
        clsid = classid(appobjectcls)
2844
4657d6e16e0c use class_regid / classid functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2838
diff changeset
   512
        if clsid in self._loadedmods[modname]:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   513
            return
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   514
        self._loadedmods[modname][clsid] = appobjectcls
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   515
        for parent in appobjectcls.__bases__:
1310
99dfced5673e fix vobjects registration to deal with objects inter-dependancy
sylvain.thenault@logilab.fr
parents: 1282
diff changeset
   516
            self._load_ancestors_then_object(modname, parent)
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   517
        if (appobjectcls.__dict__.get('__abstract__')
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   518
            or appobjectcls.__name__[0] == '_'
5093
8d073d2e089d [optimization] improve massive write performance by optimizing hooks selection
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5078
diff changeset
   519
            or not appobjectcls.__registries__
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   520
            or not class_regid(appobjectcls)):
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   521
            return
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   522
        try:
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   523
            self.register(appobjectcls)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   524
        except Exception, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   525
            if self.config.mode in ('test', 'dev'):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   526
                raise
4491
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   527
            self.exception('appobject %s registration failed: %s',
a0f48c31b58a kill register_appobject_class method, simplifying autoregistration. Update test accordingly (test which manually registers object should also properly call there __register__ method). Drop the disable-appobjects config file entry: no one used it since its introduction years ago.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4490
diff changeset
   528
                           appobjectcls, ex)
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   529
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   530
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   531
# init logging
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   532
set_log_methods(VRegistry, getLogger('cubicweb.vreg'))
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2589
diff changeset
   533
set_log_methods(Registry, getLogger('cubicweb.registry'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   534
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   535
835
7dcb11dd443e fix relation_possible, ensure we return int
sylvain.thenault@logilab.fr
parents: 827
diff changeset
   536
# XXX bw compat functions #####################################################
693
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   537
2657
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   538
from cubicweb.appobject import objectify_selector, AndSelector, OrSelector, Selector
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   539
2788
8d3dbe577d3a R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2771
diff changeset
   540
objectify_selector = deprecated('[3.4] objectify_selector has been moved to appobject module')(objectify_selector)
2657
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   541
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   542
Selector = class_moved(Selector)
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   543
2788
8d3dbe577d3a R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2771
diff changeset
   544
@deprecated('[3.4] use & operator (binary and)')
693
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   545
def chainall(*selectors, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   546
    """return a selector chaining given selectors. If one of
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   547
    the selectors fail, selection will fail, else the returned score
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   548
    will be the sum of each selector'score
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   549
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   550
    assert selectors
759
e044f28372bd chainall / chainfirst ensures selectors are instantiated
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 741
diff changeset
   551
    # XXX do we need to create the AndSelector here, a tuple might be enough
780
5b6c93816871 fix selector search and refactor auto-instantiation
sylvain.thenault@logilab.fr
parents: 760
diff changeset
   552
    selector = AndSelector(*selectors)
693
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   553
    if 'name' in kwargs:
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   554
        selector.__name__ = kwargs['name']
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   555
    return selector
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   556
2788
8d3dbe577d3a R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2771
diff changeset
   557
@deprecated('[3.4] use | operator (binary or)')
693
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   558
def chainfirst(*selectors, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   559
    """return a selector chaining given selectors. If all
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   560
    the selectors fail, selection will fail, else the returned score
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   561
    will be the first non-zero selector score
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   562
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   563
    assert selectors
780
5b6c93816871 fix selector search and refactor auto-instantiation
sylvain.thenault@logilab.fr
parents: 760
diff changeset
   564
    selector = OrSelector(*selectors)
693
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   565
    if 'name' in kwargs:
cf0817dfc787 reimplements chainall/chainfirst using [And/Or], implemenent search_selector function on Selector base class
sylvain.thenault@logilab.fr
parents: 686
diff changeset
   566
        selector.__name__ = kwargs['name']
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   567
    return selector