cwvreg.py
author Aurelien Campeas <aurelien.campeas@logilab.fr>
Wed, 01 Jul 2009 14:56:37 +0200
branchstable
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child 2223 59588e2d5cd1
permissions -rw-r--r--
by popular demand, let us setle on needs_xxx
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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 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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    """extend the generic VRegistry with some cubicweb specific stuff"""
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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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    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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    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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        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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                        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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            for rtag in RTAGS:
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                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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        # 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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                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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                                   and self.etype_class(iface)
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                                   or iface
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                                   for iface in ifaces)
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                if not ('Any' in ifaces or ifaces & implemented_interfaces):
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                    self.debug('kicking vobject %s (no implemented '
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                               'interface among %s)', obj, ifaces)
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                    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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0
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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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        if etype == 'Any':
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            return self.select(self.registry_objects('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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   181
            except KeyError:
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                btype = str(baseschema)
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            try:
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                cls = self.select(self.registry_objects('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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   189
            # no entity class for any of the ancestors, fallback to the default
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diff changeset
   190
            # one
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diff changeset
   191
            cls = self.select(self.registry_objects('etypes', 'Any'), etype)
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        return cls
0
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    def render(self, registry, oid, req, **context):
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        """select an object in a given registry and render it
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        - registry: the registry's name
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        - oid : the view to call
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        - req : the HTTP request
0
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        """
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        objclss = self.registry_objects(registry, oid)
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        try:
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            rset = context.pop('rset')
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        except KeyError:
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            rset = None
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        selected = self.select(objclss, req, rset, **context)
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        return selected.render(**context)
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diff changeset
   208
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cb8ccbef8fa5 main template refactoring
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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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   213
        """
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9cd49a910fce kill Template class and 'templates' registry
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parents: 785
diff changeset
   214
        res = self.render('views', oid, req, **context)
0
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diff changeset
   215
        if isinstance(res, unicode):
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diff changeset
   216
            return res.encode(req.encoding)
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   217
        assert isinstance(res, str)
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        return res
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   219
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    def possible_vobjects(self, registry, *args, **kwargs):
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        """return an ordered list of possible app objects in a given registry,
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   222
        supposing they support the 'visible' and 'order' properties (as most
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diff changeset
   223
        visualizable objects)
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parents:
diff changeset
   224
        """
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   225
        return [x for x in sorted(self.possible_objects(registry, *args, **kwargs),
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   226
                                  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
   227
                if x.propval('visible')]
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diff changeset
   228
0
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   229
    def possible_actions(self, req, rset, **kwargs):
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   230
        if rset is None:
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6042f1b342bb consider kwargs in possible_actions
sylvain.thenault@logilab.fr
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diff changeset
   231
            actions = self.possible_vobjects('actions', req, rset, **kwargs)
0
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   232
        else:
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6042f1b342bb consider kwargs in possible_actions
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diff changeset
   233
            actions = rset.possible_actions(**kwargs) # cached implementation
0
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diff changeset
   234
        result = {}
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diff changeset
   235
        for action in actions:
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diff changeset
   236
            result.setdefault(action.category, []).append(action)
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   237
        return result
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parents: 1357
diff changeset
   238
0
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diff changeset
   239
    def possible_views(self, req, rset, **kwargs):
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   240
        """return an iterator on possible views for this result set
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parents:
diff changeset
   241
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diff changeset
   242
        views returned are classes, not instances
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parents:
diff changeset
   243
        """
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diff changeset
   244
        for vid, views in self.registry('views').items():
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diff changeset
   245
            if vid[0] == '_':
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diff changeset
   246
                continue
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diff changeset
   247
            try:
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diff changeset
   248
                view = self.select(views, req, rset, **kwargs)
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   249
                if view.linkable():
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   250
                    yield view
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diff changeset
   251
            except NoSelectableObject:
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   252
                continue
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cce260264122 catch Exception in case there is some unexepected selector bug
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diff changeset
   253
            except Exception:
cce260264122 catch Exception in case there is some unexepected selector bug
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diff changeset
   254
                self.exception('error while trying to list possible %s views for %s',
cce260264122 catch Exception in case there is some unexepected selector bug
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diff changeset
   255
                               vid, rset)
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parents: 1357
diff changeset
   256
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
   257
    def view(self, __vid, req, rset=None, __fallback_vid=None, **kwargs):
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
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parents: 1977
diff changeset
   258
        """shortcut to self.vreg.render method avoiding to pass self.req"""
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
   259
        try:
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parents: 1977
diff changeset
   260
            view = self.select_view(__vid, req, rset, **kwargs)
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
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parents: 1977
diff changeset
   261
        except NoSelectableObject:
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   262
            if __fallback_vid is None:
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
   263
                raise
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
   264
            view = self.select_view(__fallback_vid, req, rset, **kwargs)
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
   265
        return view.render(**kwargs)
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   266
0
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parents:
diff changeset
   267
    def select_box(self, oid, *args, **kwargs):
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parents:
diff changeset
   268
        """return the most specific view according to the result set"""
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parents:
diff changeset
   269
        try:
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parents:
diff changeset
   270
            return self.select_object('boxes', oid, *args, **kwargs)
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parents:
diff changeset
   271
        except NoSelectableObject:
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parents:
diff changeset
   272
            return
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parents:
diff changeset
   273
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parents:
diff changeset
   274
    def select_action(self, oid, *args, **kwargs):
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parents:
diff changeset
   275
        """return the most specific view according to the result set"""
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parents:
diff changeset
   276
        try:
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parents:
diff changeset
   277
            return self.select_object('actions', oid, *args, **kwargs)
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parents:
diff changeset
   278
        except NoSelectableObject:
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parents:
diff changeset
   279
            return
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
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parents: 1357
diff changeset
   280
0
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parents:
diff changeset
   281
    def select_component(self, cid, *args, **kwargs):
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parents:
diff changeset
   282
        """return the most specific component according to the result set"""
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   283
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   284
            return self.select_object('components', cid, *args, **kwargs)
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parents:
diff changeset
   285
        except (NoSelectableObject, ObjectNotFound):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   286
            return
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   287
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
   288
    def select_view(self, __vid, req, rset=None, **kwargs):
0
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parents:
diff changeset
   289
        """return the most specific view according to the result set"""
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parents:
diff changeset
   290
        views = self.registry_objects('views', __vid)
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parents:
diff changeset
   291
        return self.select(views, req, rset, **kwargs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   292
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   293
    # properties handling #####################################################
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   294
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   295
    def user_property_keys(self, withsitewide=False):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   296
        if withsitewide:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   297
            return sorted(self['propertydefs'])
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   298
        return sorted(k for k, kd in self['propertydefs'].iteritems()
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   299
                      if not kd['sitewide'])
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   300
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   301
    def register_property(self, key, type, help, default=None, vocabulary=None,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   302
                          sitewide=False):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   303
        """register a given property"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   304
        properties = self._registries['propertydefs']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   305
        assert type in YAMS_TO_PY
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5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   306
        properties[key] = {'type': type, 'vocabulary': vocabulary,
0
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parents:
diff changeset
   307
                           'default': default, 'help': help,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   308
                           'sitewide': sitewide}
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   309
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   310
    def property_info(self, key):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   311
        """return dictionary containing description associated to the given
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   312
        property key (including type, defaut value, help and a site wide
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   313
        boolean)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   314
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   315
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   316
            return self._registries['propertydefs'][key]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   317
        except KeyError:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   318
            if key.startswith('system.version.'):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   319
                soft = key.split('.')[-1]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   320
                return {'type': 'String', 'sitewide': True,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   321
                        'default': None, 'vocabulary': None,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   322
                        'help': _('%s software version of the database') % soft}
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   323
            raise UnknownProperty('unregistered property %r' % key)
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   324
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   325
    def property_value(self, key):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   326
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   327
            return self._registries['propertyvalues'][key]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   328
        except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   329
            return self._registries['propertydefs'][key]['default']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   330
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   331
    def typed_value(self, key, value):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   332
        """value is an unicode string, return it correctly typed. Let potential
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   333
        type error propagates.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   334
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   335
        pdef = self.property_info(key)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   336
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   337
            value = YAMS_TO_PY[pdef['type']](value)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   338
        except (TypeError, ValueError):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   339
            raise ValueError(_('bad value'))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   340
        vocab = pdef['vocabulary']
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   341
        if vocab is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   342
            if callable(vocab):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   343
                vocab = vocab(key, None) # XXX need a req object
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   344
            if not value in vocab:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   345
                raise ValueError(_('unauthorized value'))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
        return value
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   347
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   348
    def init_properties(self, propvalues):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   349
        """init the property values registry using the given set of couple (key, value)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   350
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   351
        self.initialized = True
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   352
        values = self._registries['propertyvalues']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   353
        for key, val in propvalues:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   354
            try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
                values[key] = self.typed_value(key, val)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   356
            except ValueError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   357
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   358
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   359
            except UnknownProperty, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   360
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   363
    def parse(self, session, rql, args=None):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
        rqlst = self.rqlhelper.parse(rql)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
        def type_from_eid(eid, session=session):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
            return session.describe(eid)[0]
1123
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   367
        try:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   368
            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
   369
        except UnknownEid:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   370
            for select in rqlst.children:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   371
                select.solutions = []
0
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parents:
diff changeset
   372
        return rqlst
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   373
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   374
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
    @cached
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   376
    def rqlhelper(self):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   377
        return RQLHelper(self.schema,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   378
                         special_relations={'eid': 'uid', 'has_text': 'fti'})
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
169
0e031b66cb0b don't systematically init_log, it may breaks client log configuration
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
   380
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
class MulCnxCubicWebRegistry(CubicWebRegistry):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
    """special registry to be used when an application has to deal with
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   383
    connections to differents repository. This class add some additional wrapper
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
    trying to hide buggy class attributes since classes are not designed to be
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
    shared.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   386
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
    def etype_class(self, etype):
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parents:
diff changeset
   388
        """return an entity class for the given entity type.
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
        Try to find out a specific class for this kind of entity or
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
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diff changeset
   390
        default to a dump of the class registered for 'Any'
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parents:
diff changeset
   391
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   392
        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
   393
        if etype == 'Any':
eaf6e0edc509 fix etype_class(Any) when multiple sources
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parents: 1769
diff changeset
   394
            return usercls
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395
        usercls.e_schema = self.schema.eschema(etype)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
        return usercls
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   398
    def select(self, vobjects, *args, **kwargs):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
        """return an instance of the most specific object according
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   400
        to parameters
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   401
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
        raise NoSelectableObject if not object apply
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   404
        for vobject in vobjects:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
            vobject.vreg = self
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
            vobject.schema = self.schema
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
            vobject.config = self.config
1923
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   408
        selected = super(MulCnxCubicWebRegistry, self).select(vobjects, *args,
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   409
                                                              **kwargs)
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   410
        # 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
   411
        # attributes (which may change)
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   412
        selected.vreg = self
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   413
        selected.schema = self.schema
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   414
        selected.config = self.config
3802c2e37e72 handle speaking to an instance using old entity types
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1917
diff changeset
   415
        return selected
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   416
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   417
from datetime import datetime, date, time, timedelta
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   419
YAMS_TO_PY = {
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
    'Boolean':  bool,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   421
    'String' :  unicode,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
    'Password': str,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
    'Bytes':    Binary,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   424
    'Int':      int,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   425
    'Float':    float,
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   426
    'Date':     date,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   427
    'Datetime': datetime,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   428
    'Time':     time,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   429
    'Interval': timedelta,
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
    }
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431