cwvreg.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Wed, 22 Apr 2009 09:46:13 -0500
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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), all rights reserved.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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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 Binary, UnknownProperty, UnknownEid
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from cubicweb.vregistry import VRegistry, ObjectNotFound, NoSelectableObject
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_ = unicode
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class DummyCursorError(Exception): pass
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class RaiseCursor:
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    @classmethod
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    def execute(cls, rql, args=None, eid_key=None):
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        raise DummyCursorError()
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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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        # two special registries, propertydefs which care all the property definitions, and
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        # propertyvals which contains values for those 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_objects(self, path, force_reload=None):
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        """overriden to handle type class cache issue"""
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        if  super(CubicWebRegistry, self).register_objects(path, force_reload):
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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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            # remove vobjects that don't support any available interface
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            interfaces = set()
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            for classes in self.get('etypes', {}).values():
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                for cls in classes:
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                    interfaces.update(cls.__implements__)
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            if not self.config.cleanup_interface_sobjects:
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                return
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            for registry, regcontent in self._registries.items():
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                if registry in ('propertydefs', 'propertyvalues', 'etypes'):
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                    continue
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                for oid, objects in regcontent.items():
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                    for obj in reversed(objects[:]):
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                        if not obj in objects:
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                            continue # obj was kicked by a previous one
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                        accepted = set(getattr(obj, 'accepts_interfaces', ()))
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                        if accepted:
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                            for accepted_iface in accepted:
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                                for found_iface in interfaces:
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                                    if issubclass(found_iface, accepted_iface):
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                                        # consider priority if necessary
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                                        if hasattr(obj.__registerer__, 'remove_all_equivalents'):
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                                            registerer = obj.__registerer__(self, obj)
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                                            registerer.remove_all_equivalents(objects)
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                                        break
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                                else:
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                                    self.debug('kicking vobject %s because interface is not supported', obj)
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                                    objects.remove(obj)
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                    # if objects is empty, remove oid from registry
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                    if not objects:
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                        del regcontent[oid]
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    def eid_rset(self, cursor, eid, etype=None):
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        """return a result set for the given eid without doing actual query
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        (we have the eid, we can suppose it exists and user has access to the
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        entity)
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        """
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        msg = '.eid_rset is deprecated, use req.eid_rset'
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        warn(msg, DeprecationWarning, stacklevel=2)
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        try:
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            return cursor.req.eid_rset(eid, etype)
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        except AttributeError:
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            # cursor is a session
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            return cursor.eid_rset(eid, etype)
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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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   131
        etype = str(etype)
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   132
        eschema = self.schema.eschema(etype)
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   133
        baseschemas = [eschema] + eschema.ancestors()
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   134
        # browse ancestors from most specific to most generic and
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parents:
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   135
        # try to find an associated custom entity class
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parents:
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   136
        for baseschema in baseschemas:
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parents:
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   137
            btype = str(baseschema)
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   138
            try:
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   139
                return self.select(self.registry_objects('etypes', btype), etype)
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   140
            except ObjectNotFound:
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   141
                pass
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        # no entity class for any of the ancestors, fallback to the default one
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   143
        return self.select(self.registry_objects('etypes', 'Any'), etype)
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   144
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   145
    def render(self, registry, oid, req, **context):
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   146
        """select an object in a given registry and render it
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   147
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   148
        - registry: the registry's name
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   149
        - oid : the view to call
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   150
        - req : the HTTP request         
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   151
        """
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   152
        objclss = self.registry_objects(registry, oid)
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   153
        try:
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   154
            rset = context.pop('rset')
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   155
        except KeyError:
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   156
            rset = None
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   157
        selected = self.select(objclss, req, rset, **context)
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   158
        return selected.dispatch(**context)
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parents:
diff changeset
   159
        
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   160
    def main_template(self, req, oid='main', **context):
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parents:
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   161
        """display query by calling the given template (default to main),
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   162
        and returning the output as a string instead of requiring the [w]rite
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   163
        method as argument
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parents:
diff changeset
   164
        """
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parents:
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   165
        res = self.render('templates', oid, req, **context)
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   166
        if isinstance(res, unicode):
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diff changeset
   167
            return res.encode(req.encoding)
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   168
        assert isinstance(res, str)
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diff changeset
   169
        return res
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   170
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   171
    def possible_vobjects(self, registry, *args, **kwargs):
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   172
        """return an ordered list of possible app objects in a given registry,
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   173
        supposing they support the 'visible' and 'order' properties (as most
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parents:
diff changeset
   174
        visualizable objects)
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parents:
diff changeset
   175
        """
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   176
        return [x for x in sorted(self.possible_objects(registry, *args, **kwargs),
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   177
                                  key=lambda x: x.propval('order'))
213
6842c3dee34b adding files (formely appearing in jpl) specific to cubicweb
Laure Bourgois <Laure.Bourgois@logilab.fr>
parents: 169
diff changeset
   178
                if x.propval('visible')]
0
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diff changeset
   179
        
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   180
    def possible_actions(self, req, rset, **kwargs):
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diff changeset
   181
        if rset is None:
1381
6042f1b342bb consider kwargs in possible_actions
sylvain.thenault@logilab.fr
parents: 1254
diff changeset
   182
            actions = self.possible_vobjects('actions', req, rset, **kwargs)
0
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parents:
diff changeset
   183
        else:
1381
6042f1b342bb consider kwargs in possible_actions
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parents: 1254
diff changeset
   184
            actions = rset.possible_actions(**kwargs) # cached implementation
0
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parents:
diff changeset
   185
        result = {}
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parents:
diff changeset
   186
        for action in actions:
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parents:
diff changeset
   187
            result.setdefault(action.category, []).append(action)
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parents:
diff changeset
   188
        return result
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parents:
diff changeset
   189
        
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diff changeset
   190
    def possible_views(self, req, rset, **kwargs):
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parents:
diff changeset
   191
        """return an iterator on possible views for this result set
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parents:
diff changeset
   192
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diff changeset
   193
        views returned are classes, not instances
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parents:
diff changeset
   194
        """
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parents:
diff changeset
   195
        for vid, views in self.registry('views').items():
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parents:
diff changeset
   196
            if vid[0] == '_':
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parents:
diff changeset
   197
                continue
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parents:
diff changeset
   198
            try:
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diff changeset
   199
                view = self.select(views, req, rset, **kwargs)
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diff changeset
   200
                if view.linkable():
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diff changeset
   201
                    yield view
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parents:
diff changeset
   202
            except NoSelectableObject:
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parents:
diff changeset
   203
                continue
395
cce260264122 catch Exception in case there is some unexepected selector bug
sylvain.thenault@logilab.fr
parents: 355
diff changeset
   204
            except Exception:
cce260264122 catch Exception in case there is some unexepected selector bug
sylvain.thenault@logilab.fr
parents: 355
diff changeset
   205
                self.exception('error while trying to list possible %s views for %s',
cce260264122 catch Exception in case there is some unexepected selector bug
sylvain.thenault@logilab.fr
parents: 355
diff changeset
   206
                               vid, rset)
cce260264122 catch Exception in case there is some unexepected selector bug
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parents: 355
diff changeset
   207
                
0
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parents:
diff changeset
   208
    def select_box(self, oid, *args, **kwargs):
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parents:
diff changeset
   209
        """return the most specific view according to the result set"""
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parents:
diff changeset
   210
        try:
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parents:
diff changeset
   211
            return self.select_object('boxes', oid, *args, **kwargs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   212
        except NoSelectableObject:
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parents:
diff changeset
   213
            return
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parents:
diff changeset
   214
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parents:
diff changeset
   215
    def select_action(self, oid, *args, **kwargs):
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parents:
diff changeset
   216
        """return the most specific view according to the result set"""
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parents:
diff changeset
   217
        try:
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parents:
diff changeset
   218
            return self.select_object('actions', oid, *args, **kwargs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   219
        except NoSelectableObject:
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parents:
diff changeset
   220
            return
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   221
    
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parents:
diff changeset
   222
    def select_component(self, cid, *args, **kwargs):
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parents:
diff changeset
   223
        """return the most specific component according to the result set"""
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   224
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   225
            return self.select_object('components', cid, *args, **kwargs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   226
        except (NoSelectableObject, ObjectNotFound):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   227
            return
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parents:
diff changeset
   228
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parents:
diff changeset
   229
    def select_view(self, __vid, req, rset, **kwargs):
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parents:
diff changeset
   230
        """return the most specific view according to the result set"""
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parents:
diff changeset
   231
        views = self.registry_objects('views', __vid)
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parents:
diff changeset
   232
        return self.select(views, req, rset, **kwargs)
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parents:
diff changeset
   233
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   234
    
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parents:
diff changeset
   235
    # properties handling #####################################################
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parents:
diff changeset
   236
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parents:
diff changeset
   237
    def user_property_keys(self, withsitewide=False):
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parents:
diff changeset
   238
        if withsitewide:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   239
            return sorted(self['propertydefs'])
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   240
        return sorted(k for k, kd in self['propertydefs'].iteritems()
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   241
                      if not kd['sitewide'])
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parents:
diff changeset
   242
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parents:
diff changeset
   243
    def register_property(self, key, type, help, default=None, vocabulary=None,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   244
                          sitewide=False):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   245
        """register a given property"""
b97547f5f1fa Showtime !
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parents:
diff changeset
   246
        properties = self._registries['propertydefs']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   247
        assert type in YAMS_TO_PY
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   248
        properties[key] = {'type': type, 'vocabulary': vocabulary, 
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parents:
diff changeset
   249
                           'default': default, 'help': help,
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parents:
diff changeset
   250
                           'sitewide': sitewide}
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   251
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parents:
diff changeset
   252
    def property_info(self, key):
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parents:
diff changeset
   253
        """return dictionary containing description associated to the given
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   254
        property key (including type, defaut value, help and a site wide
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   255
        boolean)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   256
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   257
        try:
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parents:
diff changeset
   258
            return self._registries['propertydefs'][key]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   259
        except KeyError:
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parents:
diff changeset
   260
            if key.startswith('system.version.'):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   261
                soft = key.split('.')[-1]
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parents:
diff changeset
   262
                return {'type': 'String', 'sitewide': True,
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parents:
diff changeset
   263
                        'default': None, 'vocabulary': None,
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   264
                        'help': _('%s software version of the database') % soft}
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parents:
diff changeset
   265
            raise UnknownProperty('unregistered property %r' % key)
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parents:
diff changeset
   266
            
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parents:
diff changeset
   267
    def property_value(self, key):
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parents:
diff changeset
   268
        try:
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parents:
diff changeset
   269
            return self._registries['propertyvalues'][key]
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parents:
diff changeset
   270
        except KeyError:
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parents:
diff changeset
   271
            return self._registries['propertydefs'][key]['default']
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parents:
diff changeset
   272
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parents:
diff changeset
   273
    def typed_value(self, key, value):
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parents:
diff changeset
   274
        """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
   275
        type error propagates.
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parents:
diff changeset
   276
        """
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parents:
diff changeset
   277
        pdef = self.property_info(key)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   278
        try:
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parents:
diff changeset
   279
            value = YAMS_TO_PY[pdef['type']](value)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   280
        except (TypeError, ValueError):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   281
            raise ValueError(_('bad value'))
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   282
        vocab = pdef['vocabulary']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   283
        if vocab is not None:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   284
            if callable(vocab):
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parents:
diff changeset
   285
                vocab = vocab(key, None) # XXX need a req object
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   286
            if not value in vocab:
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parents:
diff changeset
   287
                raise ValueError(_('unauthorized value'))
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   288
        return value
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parents:
diff changeset
   289
    
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   290
    def init_properties(self, propvalues):
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parents:
diff changeset
   291
        """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
   292
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   293
        self.initialized = True
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   294
        values = self._registries['propertyvalues']
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   295
        for key, val in propvalues:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   296
            try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   297
                values[key] = self.typed_value(key, val)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   298
            except ValueError:
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parents:
diff changeset
   299
                self.warning('%s (you should probably delete that property '
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   300
                             'from the database)', ex)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   301
            except UnknownProperty, ex:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   302
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   303
                             'from the database)', ex)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   304
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   305
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   306
    def property_value_widget(self, propkey, req=None, **attrs):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   307
        """return widget according to key's type / vocab"""
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   308
        from cubicweb.web.widgets import StaticComboBoxWidget, widget_factory
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   309
        if req is None:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   310
            tr = unicode
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   311
        else:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   312
            tr = req._
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   313
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   314
            pdef = self.property_info(propkey)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   315
        except UnknownProperty, ex:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   316
            self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   317
                         'from the database)', ex)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   318
            return widget_factory(self, 'EProperty', self.schema['value'], 'String',
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   319
                                  description=u'', **attrs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   320
        req.form['value'] = pdef['default'] # XXX hack to pass the default value
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   321
        vocab = pdef['vocabulary']
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   322
        if vocab is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   323
            if callable(vocab):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   324
                # list() just in case its a generator function
1254
585f3c476a18 fix vocabfunc signature #342646
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1123
diff changeset
   325
                vocabfunc = lambda **kwargs: list(vocab(propkey, req))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   326
            else:
1254
585f3c476a18 fix vocabfunc signature #342646
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1123
diff changeset
   327
                vocabfunc = lambda **kwargs: vocab
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   328
            w = StaticComboBoxWidget(self, 'EProperty', self.schema['value'], 'String',
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   329
                                     vocabfunc=vocabfunc, description=tr(pdef['help']),
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   330
                                     **attrs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   331
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   332
            w = widget_factory(self, 'EProperty', self.schema['value'], pdef['type'],
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   333
                               description=tr(pdef['help']), **attrs)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   334
        return w
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   335
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   336
    def parse(self, session, rql, args=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   337
        rqlst = self.rqlhelper.parse(rql)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   338
        def type_from_eid(eid, session=session):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   339
            return session.describe(eid)[0]
1123
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   340
        try:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   341
            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
   342
        except UnknownEid:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   343
            for select in rqlst.children:
a8e2838f174a catch UnknownEid and set empty solutions on select nodes
sylvain.thenault@logilab.fr
parents: 395
diff changeset
   344
                select.solutions = []
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   345
        return rqlst
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   347
    @property
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   348
    @cached
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   349
    def rqlhelper(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   350
        return RQLHelper(self.schema,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   351
                         special_relations={'eid': 'uid', 'has_text': 'fti'})
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   352
169
0e031b66cb0b don't systematically init_log, it may breaks client log configuration
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 0
diff changeset
   353
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   354
class MulCnxCubicWebRegistry(CubicWebRegistry):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
    """special registry to be used when an application has to deal with
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   356
    connections to differents repository. This class add some additional wrapper
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   357
    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
   358
    shared.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   359
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   360
    def etype_class(self, etype):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
        """return an entity class for the given entity type.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
        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
   363
        default to a dump of the class registered for 'Any'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
        usercls = super(MulCnxCubicWebRegistry, self).etype_class(etype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
        usercls.e_schema = self.schema.eschema(etype)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   367
        return usercls
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   368
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
    def select(self, vobjects, *args, **kwargs):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   370
        """return an instance of the most specific object according
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   371
        to parameters
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   372
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   373
        raise NoSelectableObject if not object apply
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   374
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
        for vobject in vobjects:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   376
            vobject.vreg = self
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   377
            vobject.schema = self.schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   378
            vobject.config = self.config
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
        return super(MulCnxCubicWebRegistry, self).select(vobjects, *args, **kwargs)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
    
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
from mx.DateTime import DateTime, Time, DateTimeDelta
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   383
YAMS_TO_PY = {
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
    'Boolean':  bool,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
    'String' :  unicode,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   386
    'Password': str,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
    'Bytes':    Binary,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   388
    'Int':      int,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
    'Float':    float,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   390
    'Date':     DateTime,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
    'Datetime': DateTime,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   392
    'Time':     Time,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
    'Interval': DateTimeDelta,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
    }
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395