cwvreg.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 06 Jul 2009 19:55:18 +0200
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parent 2273 daf6e178659f
child 2389 c399bd6a9c38
permissions -rw-r--r--
backport stable branch
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"""extend the generic VRegistry with some cubicweb specific stuff
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.common.decorators import cached, clear_cache
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from logilab.common.deprecation import  obsolete
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from rql import RQLHelper
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from cubicweb import ETYPE_NAME_MAP, Binary, UnknownProperty, UnknownEid
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from cubicweb.vregistry import VRegistry, ObjectNotFound, NoSelectableObject
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from cubicweb.rtags import RTAGS
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def use_interfaces(obj):
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    """return interfaces used by the given object by searchinf for implements
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    selectors, with a bw compat fallback to accepts_interfaces attribute
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    """
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    from cubicweb.selectors import implements
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    try:
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        # XXX deprecated
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        return sorted(obj.accepts_interfaces)
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    except AttributeError:
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        try:
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            impl = obj.__select__.search_selector(implements)
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            if impl:
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                return sorted(impl.expected_ifaces)
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        except AttributeError:
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            pass # old-style vobject classes with no accepts_interfaces
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        except:
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            print 'bad selector %s on %s' % (obj.__select__, obj)
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            raise
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        return ()
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class CubicWebRegistry(VRegistry):
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    """Central registry for the cubicweb application, extending the generic
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    VRegistry with some cubicweb specific stuff.
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    This is one of the central object in cubicweb application, coupling
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    dynamically loaded objects with the schema and the configuration objects.
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    It specializes the VRegistry by adding some convenience methods to access to
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    stored objects. Currently we have the following registries of objects known
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    by the web application (library may use some others additional registries):
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    * etypes
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    * views
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    * components
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    * actions
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    * forms
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    * formrenderers
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    * controllers, which are directly plugged into the application
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      object to handle request publishing XXX to merge with views
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    * contentnavigation XXX to merge with components? to kill?
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    """
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    def __init__(self, config, debug=None, initlog=True):
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        if initlog:
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            # first init log service
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            config.init_log(debug=debug)
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        super(CubicWebRegistry, self).__init__(config)
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        self.schema = None
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        self.reset()
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        self.initialized = False
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    def items(self):
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        return [item for item in self._registries.items()
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                if not item[0] in ('propertydefs', 'propertyvalues')]
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    def values(self):
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        return [value for key, value in self._registries.items()
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                if not key in ('propertydefs', 'propertyvalues')]
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    def reset(self):
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        self._registries = {}
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        self._lastmodifs = {}
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        self._needs_iface = {}
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        # two special registries, propertydefs which care all the property
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        # definitions, and propertyvals which contains values for those
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        # properties
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        self._registries['propertydefs'] = {}
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        self._registries['propertyvalues'] = self.eprop_values = {}
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        for key, propdef in self.config.eproperty_definitions():
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            self.register_property(key, **propdef)
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    def set_schema(self, schema):
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        """set application'schema and load application objects"""
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        self.schema = schema
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        clear_cache(self, 'rqlhelper')
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        # now we can load application's web objects
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        self.register_objects(self.config.vregistry_path())
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        # map lowered entity type names to their actual name
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        self.case_insensitive_etypes = {}
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        for etype in self.schema.entities():
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            etype = str(etype)
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            self.case_insensitive_etypes[etype.lower()] = etype
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    def update_schema(self, schema):
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        """update .schema attribute on registered objects, necessary for some
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        tests
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        """
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        self.schema = schema
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        for registry, regcontent in self._registries.items():
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            if registry in ('propertydefs', 'propertyvalues'):
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                continue
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            for objects in regcontent.values():
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                for obj in objects:
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                    obj.schema = schema
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    def register_if_interface_found(self, obj, ifaces, **kwargs):
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        """register an object but remove it if no entity class implements one of
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        the given interfaces
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        """
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        self.register(obj, **kwargs)
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        if not isinstance(ifaces,  (tuple, list)):
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            self._needs_iface[obj] = (ifaces,)
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        else:
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            self._needs_iface[obj] = ifaces
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   126
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    def register(self, obj, **kwargs):
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        if kwargs.get('registryname', obj.__registry__) == 'etypes':
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            if obj.id != 'Any' and not obj.id in self.schema:
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                self.error('don\'t register %s, %s type not defined in the '
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                           'schema', obj, obj.id)
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                return
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            kwargs['clear'] = True
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        super(CubicWebRegistry, self).register(obj, **kwargs)
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        # XXX bw compat
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        ifaces = use_interfaces(obj)
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        if ifaces:
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            self._needs_iface[obj] = ifaces
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    def register_objects(self, path, force_reload=None):
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        """overriden to remove objects requiring a missing interface"""
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        extrapath = {}
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        for cubesdir in self.config.cubes_search_path():
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            if cubesdir != self.config.CUBES_DIR:
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                extrapath[cubesdir] = 'cubes'
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   146
        if super(CubicWebRegistry, self).register_objects(path, force_reload,
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                                                          extrapath):
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            self.initialization_completed()
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            # call vreg_initialization_completed on appobjects and print
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            # registry content
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            for registry, objects in self.items():
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                self.debug('available in registry %s: %s', registry,
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                           sorted(objects))
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                for appobjects in objects.itervalues():
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                    for appobject in appobjects:
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   156
                        appobject.vreg_initialization_completed()
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            # don't check rtags if we don't want to cleanup_interface_sobjects
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   158
            for rtag in RTAGS:
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   159
                rtag.init(self.schema,
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                          check=self.config.cleanup_interface_sobjects)
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    def initialization_completed(self):
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        # clear etype cache if you don't want to run into deep weirdness
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        clear_cache(self, 'etype_class')
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        # we may want to keep interface dependent objects (e.g.for i18n
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   166
        # catalog generation)
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        if self.config.cleanup_interface_sobjects:
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            # remove vobjects that don't support any available interface
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            implemented_interfaces = set()
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            if 'Any' in self.get('etypes', ()):
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   171
                for etype in self.schema.entities():
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                    cls = self.etype_class(etype)
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                    for iface in cls.__implements__:
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                        implemented_interfaces.update(iface.__mro__)
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                    implemented_interfaces.update(cls.__mro__)
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            for obj, ifaces in self._needs_iface.items():
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                ifaces = frozenset(isinstance(iface, basestring)
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                                   and iface in self.schema
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   179
                                   and self.etype_class(iface)
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   180
                                   or iface
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   181
                                   for iface in ifaces)
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   182
                if not ('Any' in ifaces or ifaces & implemented_interfaces):
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   183
                    self.debug('kicking vobject %s (no implemented '
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   184
                               'interface among %s)', obj, ifaces)
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   185
                    self.unregister(obj)
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        # clear needs_iface so we don't try to remove some not-anymore-in
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        # objects on automatic reloading
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        self._needs_iface.clear()
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    @cached
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    def etype_class(self, etype):
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        """return an entity class for the given entity type.
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        Try to find out a specific class for this kind of entity or
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        default to a dump of the class registered for 'Any'
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        """
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        etype = str(etype)
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   197
        if etype == 'Any':
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   198
            return self.select('etypes', 'Any', 'Any')
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        eschema = self.schema.eschema(etype)
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        baseschemas = [eschema] + eschema.ancestors()
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        # browse ancestors from most specific to most generic and
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        # try to find an associated custom entity class
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        for baseschema in baseschemas:
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            try:
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                btype = ETYPE_NAME_MAP[baseschema]
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   206
            except KeyError:
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                btype = str(baseschema)
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            try:
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                cls = self.select('etypes', btype, etype)
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                break
0
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            except ObjectNotFound:
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                pass
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        else:
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            # no entity class for any of the ancestors, fallback to the default
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            # one
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   216
            cls = self.select('etypes', 'Any', etype)
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        return cls
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    def render(self, __oid, req, __fallback_oid=None, __registry='views',
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               rset=None, **kwargs):
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   221
        """select object, or fallback object if specified and the first one
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   222
        isn't selectable, then render it
0
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        """
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        try:
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            obj = self.select(__registry, __oid, req, rset=rset, **kwargs)
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   226
        except NoSelectableObject:
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            if __fallback_oid is None:
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                raise
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   229
            obj = self.select(__registry, __fallback_oid, req, rset=rset,
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                              **kwargs)
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   231
        return obj.render(**kwargs)
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diff changeset
   232
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diff changeset
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    def main_template(self, req, oid='main-template', **context):
0
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        """display query by calling the given template (default to main),
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        and returning the output as a string instead of requiring the [w]rite
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        method as argument
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   237
        """
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   238
        res = self.render(oid, req, **context)
0
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   239
        if isinstance(res, unicode):
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   240
            return res.encode(req.encoding)
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   241
        assert isinstance(res, str)
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        return res
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   243
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   244
    def select_vobject(self, registry, oid, *args, **kwargs):
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   245
        selected = self.select_object(registry, oid, *args, **kwargs)
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diff changeset
   246
        if selected and selected.propval('visible'):
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   247
            return selected
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   248
        return None
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diff changeset
   249
0
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   250
    def possible_vobjects(self, registry, *args, **kwargs):
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   251
        """return an ordered list of possible app objects in a given registry,
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   252
        supposing they support the 'visible' and 'order' properties (as most
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diff changeset
   253
        visualizable objects)
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   254
        """
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   255
        return [x for x in sorted(self.possible_objects(registry, *args, **kwargs),
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diff changeset
   256
                                  key=lambda x: x.propval('order'))
213
6842c3dee34b adding files (formely appearing in jpl) specific to cubicweb
Laure Bourgois <Laure.Bourgois@logilab.fr>
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diff changeset
   257
                if x.propval('visible')]
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   258
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   259
    def possible_actions(self, req, rset=None, **kwargs):
0
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   260
        if rset is None:
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   261
            actions = self.possible_vobjects('actions', req, rset=rset, **kwargs)
0
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   262
        else:
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6042f1b342bb consider kwargs in possible_actions
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diff changeset
   263
            actions = rset.possible_actions(**kwargs) # cached implementation
0
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   264
        result = {}
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   265
        for action in actions:
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   266
            result.setdefault(action.category, []).append(action)
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   267
        return result
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diff changeset
   268
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diff changeset
   269
    def possible_views(self, req, rset=None, **kwargs):
0
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   270
        """return an iterator on possible views for this result set
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   271
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   272
        views returned are classes, not instances
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   273
        """
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   274
        for vid, views in self.registry('views').items():
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   275
            if vid[0] == '_':
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   276
                continue
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   277
            try:
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   278
                view = self.select_best(views, req, rset=rset, **kwargs)
0
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   279
                if view.linkable():
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   280
                    yield view
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   281
            except NoSelectableObject:
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   282
                continue
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cce260264122 catch Exception in case there is some unexepected selector bug
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diff changeset
   283
            except Exception:
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   284
                self.exception('error while trying to select %s view for %s',
395
cce260264122 catch Exception in case there is some unexepected selector bug
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diff changeset
   285
                               vid, rset)
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diff changeset
   286
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7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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diff changeset
   287
    @obsolete("use .select_object('boxes', ...)")
0
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diff changeset
   288
    def select_box(self, oid, *args, **kwargs):
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diff changeset
   289
        """return the most specific view according to the result set"""
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diff changeset
   290
        return self.select_object('boxes', oid, *args, **kwargs)
0
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parents:
diff changeset
   291
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7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   292
    @obsolete("use .select_object('components', ...)")
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parents: 2025
diff changeset
   293
    def select_component(self, cid, *args, **kwargs):
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diff changeset
   294
        """return the most specific component according to the result set"""
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   295
        return self.select_object('components', cid, *args, **kwargs)
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parents: 2025
diff changeset
   296
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   297
    @obsolete("use .select_object('actions', ...)")
0
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parents:
diff changeset
   298
    def select_action(self, oid, *args, **kwargs):
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parents:
diff changeset
   299
        """return the most specific view according to the result set"""
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   300
        return self.select_object('actions', oid, *args, **kwargs)
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5c1ec97f317e should not be necessary anymore to add entity class to __implements__
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parents: 1357
diff changeset
   301
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   302
    @obsolete("use .select('views', ...)")
1985
9c1db4e06095 move view method's logic on the registry, so it's easier to call it from outside an appobject. Also make rset argument optional
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   303
    def select_view(self, __vid, req, rset=None, **kwargs):
0
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parents:
diff changeset
   304
        """return the most specific view according to the result set"""
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7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
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parents: 2025
diff changeset
   305
        return self.select('views', __vid, req, rset=rset, **kwargs)
0
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parents:
diff changeset
   306
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parents:
diff changeset
   307
    # properties handling #####################################################
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parents:
diff changeset
   308
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diff changeset
   309
    def user_property_keys(self, withsitewide=False):
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parents:
diff changeset
   310
        if withsitewide:
2223
59588e2d5cd1 close #343467, no sources sections in site properties
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   311
            return sorted(k for k in self['propertydefs']
59588e2d5cd1 close #343467, no sources sections in site properties
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parents: 2025
diff changeset
   312
                          if not k.startswith('sources.'))
0
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parents:
diff changeset
   313
        return sorted(k for k, kd in self['propertydefs'].iteritems()
2223
59588e2d5cd1 close #343467, no sources sections in site properties
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   314
                      if not kd['sitewide'] and not k.startswith('sources.'))
0
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parents:
diff changeset
   315
b97547f5f1fa Showtime !
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parents:
diff changeset
   316
    def register_property(self, key, type, help, default=None, vocabulary=None,
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parents:
diff changeset
   317
                          sitewide=False):
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parents:
diff changeset
   318
        """register a given property"""
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parents:
diff changeset
   319
        properties = self._registries['propertydefs']
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parents:
diff changeset
   320
        assert type in YAMS_TO_PY
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5c1ec97f317e should not be necessary anymore to add entity class to __implements__
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parents: 1357
diff changeset
   321
        properties[key] = {'type': type, 'vocabulary': vocabulary,
0
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parents:
diff changeset
   322
                           'default': default, 'help': help,
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parents:
diff changeset
   323
                           'sitewide': sitewide}
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   324
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   325
    def property_info(self, key):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   326
        """return dictionary containing description associated to the given
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   327
        property key (including type, defaut value, help and a site wide
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   328
        boolean)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   329
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   330
        try:
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parents:
diff changeset
   331
            return self._registries['propertydefs'][key]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   332
        except KeyError:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   333
            if key.startswith('system.version.'):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   334
                soft = key.split('.')[-1]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   335
                return {'type': 'String', 'sitewide': True,
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parents:
diff changeset
   336
                        'default': None, 'vocabulary': None,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   337
                        'help': _('%s software version of the database') % soft}
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   338
            raise UnknownProperty('unregistered property %r' % key)
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5c1ec97f317e should not be necessary anymore to add entity class to __implements__
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parents: 1357
diff changeset
   339
0
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parents:
diff changeset
   340
    def property_value(self, key):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   341
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   342
            return self._registries['propertyvalues'][key]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   343
        except KeyError:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   344
            return self._registries['propertydefs'][key]['default']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   345
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
    def typed_value(self, key, value):
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parents:
diff changeset
   347
        """value is an unicode string, return it correctly typed. Let potential
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   348
        type error propagates.
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   349
        """
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parents:
diff changeset
   350
        pdef = self.property_info(key)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   351
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   352
            value = YAMS_TO_PY[pdef['type']](value)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   353
        except (TypeError, ValueError):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   354
            raise ValueError(_('bad value'))
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
        vocab = pdef['vocabulary']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   356
        if vocab is not None:
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parents:
diff changeset
   357
            if callable(vocab):
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parents:
diff changeset
   358
                vocab = vocab(key, None) # XXX need a req object
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   359
            if not value in vocab:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   360
                raise ValueError(_('unauthorized value'))
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
        return value
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5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   362
0
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parents:
diff changeset
   363
    def init_properties(self, propvalues):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
        """init the property values registry using the given set of couple (key, value)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
        self.initialized = True
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parents:
diff changeset
   367
        values = self._registries['propertyvalues']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   368
        for key, val in propvalues:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
            try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   370
                values[key] = self.typed_value(key, val)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   371
            except ValueError:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   372
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   373
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   374
            except UnknownProperty, ex:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   376
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   377
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   378
    def parse(self, session, rql, args=None):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
        rqlst = self.rqlhelper.parse(rql)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
        def type_from_eid(eid, session=session):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
            return session.describe(eid)[0]
1123
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   382
        try:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   383
            self.rqlhelper.compute_solutions(rqlst, {'eid': type_from_eid}, args)
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   384
        except UnknownEid:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   385
            for select in rqlst.children:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   386
                select.solutions = []
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
        return rqlst
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   388
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   390
    @cached
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
    def rqlhelper(self):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   392
        return RQLHelper(self.schema,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
                         special_relations={'eid': 'uid', 'has_text': 'fti'})
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
169
0e031b66cb0b don't systematically init_log, it may breaks client log configuration
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
   395
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
class MulCnxCubicWebRegistry(CubicWebRegistry):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
    """special registry to be used when an application has to deal with
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   398
    connections to differents repository. This class add some additional wrapper
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
    trying to hide buggy class attributes since classes are not designed to be
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: 2025
diff changeset
   400
    shared among multiple registries.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   401
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
    def etype_class(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
        """return an entity class for the given entity type.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   404
        Try to find out a specific class for this kind of entity or
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
        default to a dump of the class registered for 'Any'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
        usercls = super(MulCnxCubicWebRegistry, self).etype_class(etype)
1917
eaf6e0edc509 fix etype_class(Any) when multiple sources
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1769
diff changeset
   408
        if etype == 'Any':
eaf6e0edc509 fix etype_class(Any) when multiple sources
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 1769
diff changeset
   409
            return usercls
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   410
        usercls.e_schema = self.schema.eschema(etype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
        return usercls
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   412
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: 2025
diff changeset
   413
    def select_best(self, vobjects, *args, **kwargs):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   414
        """return an instance of the most specific object according
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   415
        to parameters
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   416
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   417
        raise NoSelectableObject if not object apply
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
        """
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: 2025
diff changeset
   419
        for vobjectcls in vobjects:
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: 2025
diff changeset
   420
            self._fix_cls_attrs(vobjectcls)
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: 2025
diff changeset
   421
        selected = super(MulCnxCubicWebRegistry, self).select_best(
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: 2025
diff changeset
   422
            vobjects, *args, **kwargs)
1923
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   423
        # redo the same thing on the instance so it won't use equivalent class
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   424
        # attributes (which may change)
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: 2025
diff changeset
   425
        self._fix_cls_attrs(selected)
1923
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   426
        return selected
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   427
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: 2025
diff changeset
   428
    def _fix_cls_attrs(self, vobject):
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: 2025
diff changeset
   429
        vobject.vreg = self
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: 2025
diff changeset
   430
        vobject.schema = self.schema
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: 2025
diff changeset
   431
        vobject.config = self.config
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: 2025
diff changeset
   432
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: 2025
diff changeset
   433
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   434
from datetime import datetime, date, time, timedelta
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   435
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   436
YAMS_TO_PY = {
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   437
    'Boolean':  bool,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   438
    'String' :  unicode,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   439
    'Password': str,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   440
    'Bytes':    Binary,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   441
    'Int':      int,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   442
    'Float':    float,
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   443
    'Date':     date,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   444
    'Datetime': datetime,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   445
    'Time':     time,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   446
    'Interval': timedelta,
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
    }
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448