cwvreg.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Thu, 13 Aug 2009 10:32:03 +0200
changeset 2804 0d01413ec9ae
parent 2793 bfb21f7a0d13
child 2807 696ff03f9a58
permissions -rw-r--r--
no more needs for vreg_initialization_completed hook
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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, monkeypatch
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from logilab.common.deprecation import  deprecated
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from logilab.common.modutils import cleanup_sys_modules
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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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                      ObjectNotFound, NoSelectableObject, RegistryNotFound,
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                      RegistryOutOfDate, CW_EVENT_MANAGER)
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from cubicweb.utils import dump_class
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from cubicweb.vregistry import VRegistry, Registry
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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 appobject 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 CWRegistry(Registry):
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    def __init__(self, vreg):
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        super(CWRegistry, self).__init__(vreg.config)
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        self.vreg = vreg
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        self.schema = vreg.schema
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    def initialization_completed(self):
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        pass
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    def render(self, __oid, req, __fallback_oid=None, rset=None, **kwargs):
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        """select object, or fallback object if specified and the first one
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        isn't selectable, then render it
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        """
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        try:
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            obj = self.select(__oid, req, rset=rset, **kwargs)
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        except NoSelectableObject:
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            if __fallback_oid is None:
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                raise
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            obj = self.select(__fallback_oid, req, **kwargs)
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        return obj.render(**kwargs)
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    def select_vobject(self, oid, *args, **kwargs):
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        selected = self.select_or_none(oid, *args, **kwargs)
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        if selected and selected.propval('visible'):
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            return selected
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        return None
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    def possible_vobjects(self, *args, **kwargs):
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        """return an ordered list of possible app objects in a given registry,
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        supposing they support the 'visible' and 'order' properties (as most
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        visualizable objects)
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        """
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        return sorted([x for x in self.possible_objects(*args, **kwargs)
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                       if x.propval('visible')],
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                      key=lambda x: x.propval('order'))
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VRegistry.REGISTRY_FACTORY[None] = CWRegistry
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class ETypeRegistry(CWRegistry):
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    def initialization_completed(self):
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        """on registration completed, clear etype_class internal cache
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        """
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        super(ETypeRegistry, self).initialization_completed()
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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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    def register(self, obj, **kwargs):
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        oid = kwargs.get('oid') or obj.id
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    97
        if oid != 'Any' and not oid in self.schema:
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    98
            self.error('don\'t register %s, %s type not defined in the '
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    99
                       'schema', obj, obj.id)
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   100
            return
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   101
        kwargs['clear'] = True
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   102
        super(ETypeRegistry, self).register(obj, **kwargs)
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   103
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   104
    @cached
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   105
    def etype_class(self, etype):
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   106
        """return an entity class for the given entity type.
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   107
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   108
        Try to find out a specific class for this kind of entity or default to a
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   109
        dump of the nearest parent class (in yams inheritance) registered.
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   110
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   111
        Fall back to 'Any' if not yams parent class found.
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   112
        """
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   113
        etype = str(etype)
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   114
        if etype == 'Any':
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   115
            return self.select('Any', 'Any')
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   116
        eschema = self.schema.eschema(etype)
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   117
        baseschemas = [eschema] + eschema.ancestors()
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   118
        # browse ancestors from most specific to most generic and try to find an
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   119
        # associated custom entity class
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   120
        for baseschema in baseschemas:
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   121
            try:
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   122
                btype = ETYPE_NAME_MAP[baseschema]
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   123
            except KeyError:
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   124
                btype = str(baseschema)
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   125
            try:
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   126
                objects = self[btype]
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   127
                assert len(objects) == 1, objects
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   128
                cls = objects[0]
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   129
                break
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   130
            except ObjectNotFound:
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   131
                pass
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   132
        else:
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   133
            # no entity class for any of the ancestors, fallback to the default
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   134
            # one
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   135
            objects = self['Any']
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   136
            assert len(objects) == 1, objects
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   137
            cls = objects[0]
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   138
        if cls.id == etype:
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   139
            cls.__initialize__()
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   140
            return cls
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   141
        cls = dump_class(cls, etype)
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   142
        cls.id = etype
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   143
        cls.__initialize__()
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   144
        return cls
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   145
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   146
VRegistry.REGISTRY_FACTORY['etypes'] = ETypeRegistry
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   147
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   148
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   149
class ViewsRegistry(CWRegistry):
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   150
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   151
    def main_template(self, req, oid='main-template', **kwargs):
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   152
        """display query by calling the given template (default to main),
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   153
        and returning the output as a string instead of requiring the [w]rite
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   154
        method as argument
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   155
        """
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   156
        res = self.render(oid, req, **kwargs)
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   157
        if isinstance(res, unicode):
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   158
            return res.encode(req.encoding)
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   159
        assert isinstance(res, str)
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   160
        return res
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   161
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   162
    def possible_views(self, req, rset=None, **kwargs):
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   163
        """return an iterator on possible views for this result set
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   164
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   165
        views returned are classes, not instances
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   166
        """
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   167
        for vid, views in self.items():
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   168
            if vid[0] == '_':
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   169
                continue
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   170
            try:
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   171
                view = self._select_best(views, req, rset=rset, **kwargs)
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   172
                if view.linkable():
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   173
                    yield view
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   174
            except NoSelectableObject:
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   175
                continue
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   176
            except Exception:
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   177
                self.exception('error while trying to select %s view for %s',
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   178
                               vid, rset)
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   179
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   180
VRegistry.REGISTRY_FACTORY['views'] = ViewsRegistry
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   181
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   182
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   183
class ActionsRegistry(CWRegistry):
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    def possible_actions(self, req, rset=None, **kwargs):
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        if rset is None:
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            actions = self.possible_vobjects(req, rset=rset, **kwargs)
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        else:
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            actions = rset.possible_actions(**kwargs) # cached implementation
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        result = {}
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        for action in actions:
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            result.setdefault(action.category, []).append(action)
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        return result
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VRegistry.REGISTRY_FACTORY['actions'] = ActionsRegistry
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class CubicWebVRegistry(VRegistry):
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    """Central registry for the cubicweb instance, extending the generic
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    VRegistry with some cubicweb specific stuff.
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    This is one of the central object in cubicweb instance, coupling
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    dynamically loaded objects with the schema and the configuration objects.
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    It specializes the VRegistry by adding some convenience methods to access to
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    stored objects. Currently we have the following registries of objects known
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    by the web instance (library may use some others additional registries):
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    * etypes
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    * views
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    * components
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    * actions
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    * forms
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    * formrenderers
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    * controllers, which are directly plugged into the application
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      object to handle request publishing XXX to merge with views
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    * contentnavigation XXX to merge with components? to kill?
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    """
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    def __init__(self, config, debug=None, initlog=True):
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        if initlog:
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            # first init log service
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            config.init_log(debug=debug)
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        super(CubicWebVRegistry, 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 setdefault(self, regid):
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        try:
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            return self[regid]
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        except RegistryNotFound:
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            self[regid] = self.registry_class(regid)(self)
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            return self[regid]
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    def items(self):
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        return [item for item in super(CubicWebVRegistry, self).items()
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                if not item[0] in ('propertydefs', 'propertyvalues')]
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    def iteritems(self):
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        return (item for item in super(CubicWebVRegistry, self).iteritems()
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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.items()]
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    def itervalues(self):
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        return (value for key, value in self.items())
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    def reset(self, path=None, force_reload=None):
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        super(CubicWebVRegistry, self).reset(path, force_reload)
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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['propertydefs'] = {}
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        self['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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        if path is not None and force_reload:
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            cleanup_sys_modules(path)
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            cubes = self.config.cubes()
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            # if the fs code use some cubes not yet registered into the instance
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            # we should cleanup sys.modules for those as well to avoid potential
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            # bad class reference pb after reloading
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            cfg = self.config
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            for cube in cfg.expand_cubes(cubes, with_recommends=True):
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                if not cube in cubes:
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                    cpath = cfg.build_vregistry_cube_path([cfg.cube_dir(cube)])
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                    cleanup_sys_modules(cpath)
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    def set_schema(self, schema):
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        """set instance'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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        searchpath = self.config.vregistry_path()
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        self.reset(searchpath, force_reload=False)
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        self.register_objects(searchpath, force_reload=False)
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        # map lowered entity type names to their actual name
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        self.case_insensitive_etypes = {}
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        for etype in self.schema.entities():
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            etype = str(etype)
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            self.case_insensitive_etypes[etype.lower()] = etype
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0
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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.items():
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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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   304
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    def register(self, obj, **kwargs):
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        super(CubicWebVRegistry, 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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0
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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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        if force_reload is None:
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            force_reload = self.config.mode == 'dev'
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        try:
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            self._register_objects(path, force_reload)
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        except RegistryOutOfDate:
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            CW_EVENT_MANAGER.emit('before-registry-reload')
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            # modification detected, reset and reload
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            self.reset(path, force_reload)
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            self._register_objects(path, force_reload)
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   323
            CW_EVENT_MANAGER.emit('after-registry-reload')
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   324
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   325
    def _register_objects(self, path, force_reload=None):
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        """overriden to remove objects requiring a missing interface"""
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   327
        extrapath = {}
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   328
        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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   331
        if super(CubicWebVRegistry, self).register_objects(path, force_reload,
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diff changeset
   332
                                                          extrapath):
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   333
            self.initialization_completed()
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diff changeset
   334
            # don't check rtags if we don't want to cleanup_interface_sobjects
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diff changeset
   335
            for rtag in RTAGS:
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diff changeset
   336
                rtag.init(self.schema,
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   337
                          check=self.config.cleanup_interface_sobjects)
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   338
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   339
    def initialization_completed(self):
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   340
        for regname, reg in self.items():
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            self.debug('available in registry %s: %s', regname, sorted(reg))
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   342
            reg.initialization_completed()
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   343
        # we may want to keep interface dependent objects (e.g.for i18n
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   344
        # catalog generation)
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   345
        if self.config.cleanup_interface_sobjects:
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diff changeset
   346
            # remove appobjects that don't support any available interface
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   347
            implemented_interfaces = set()
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   348
            if 'Any' in self.get('etypes', ()):
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diff changeset
   349
                for etype in self.schema.entities():
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diff changeset
   350
                    if etype.is_final():
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   351
                        continue
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   352
                    cls = self['etypes'].etype_class(etype)
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   353
                    for iface in cls.__implements__:
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   354
                        implemented_interfaces.update(iface.__mro__)
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   355
                    implemented_interfaces.update(cls.__mro__)
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diff changeset
   356
            for obj, ifaces in self._needs_iface.items():
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   357
                ifaces = frozenset(isinstance(iface, basestring)
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   358
                                   and iface in self.schema
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   359
                                   and self['etypes'].etype_class(iface)
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diff changeset
   360
                                   or iface
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diff changeset
   361
                                   for iface in ifaces)
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diff changeset
   362
                if not ('Any' in ifaces or ifaces & implemented_interfaces):
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diff changeset
   363
                    self.debug('kicking appobject %s (no implemented '
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diff changeset
   364
                               'interface among %s)', obj, ifaces)
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diff changeset
   365
                    self.unregister(obj)
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diff changeset
   366
        # clear needs_iface so we don't try to remove some not-anymore-in
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diff changeset
   367
        # objects on automatic reloading
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diff changeset
   368
        self._needs_iface.clear()
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diff changeset
   369
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diff changeset
   370
    def parse(self, session, rql, args=None):
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diff changeset
   371
        rqlst = self.rqlhelper.parse(rql)
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diff changeset
   372
        def type_from_eid(eid, session=session):
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diff changeset
   373
            return session.describe(eid)[0]
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diff changeset
   374
        try:
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diff changeset
   375
            self.rqlhelper.compute_solutions(rqlst, {'eid': type_from_eid}, args)
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diff changeset
   376
        except UnknownEid:
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diff changeset
   377
            for select in rqlst.children:
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diff changeset
   378
                select.solutions = []
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diff changeset
   379
        return rqlst
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parents: 2613
diff changeset
   380
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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diff changeset
   381
    @property
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diff changeset
   382
    @cached
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diff changeset
   383
    def rqlhelper(self):
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diff changeset
   384
        return RQLHelper(self.schema,
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diff changeset
   385
                         special_relations={'eid': 'uid', 'has_text': 'fti'})
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
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parents: 2613
diff changeset
   386
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   387
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diff changeset
   388
    @deprecated('[3.4] use vreg["etypes"].etype_class(etype)')
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diff changeset
   389
    def etype_class(self, etype):
2650
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diff changeset
   390
        return self["etypes"].etype_class(etype)
0
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parents:
diff changeset
   391
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diff changeset
   392
    @deprecated('[3.4] use vreg["views"].main_template(*args, **kwargs)')
823
cb8ccbef8fa5 main template refactoring
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 816
diff changeset
   393
    def main_template(self, req, oid='main-template', **context):
2650
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diff changeset
   394
        return self["views"].main_template(req, oid, **context)
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parents:
diff changeset
   395
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   396
    @deprecated('[3.4] use vreg[registry].possible_vobjects(*args, **kwargs)')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
    def possible_vobjects(self, registry, *args, **kwargs):
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   398
        return self[registry].possible_vobjects(*args, **kwargs)
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   399
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   400
    @deprecated('[3.4] use vreg["actions"].possible_actions(*args, **kwargs)')
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   401
    def possible_actions(self, req, rset=None, **kwargs):
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   402
        return self["actions"].possible_actions(req, rest=rset, **kwargs)
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   403
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   404
    @deprecated("[3.4] use vreg['boxes'].select_or_none(...)")
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
    def select_box(self, oid, *args, **kwargs):
2770
356e9d7c356d R propagate registry API changes
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2705
diff changeset
   406
        return self['boxes'].select_or_none(oid, *args, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   408
    @deprecated("[3.4] use vreg['components'].select_or_none(...)")
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   409
    def select_component(self, cid, *args, **kwargs):
2770
356e9d7c356d R propagate registry API changes
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2705
diff changeset
   410
        return self['components'].select_or_none(cid, *args, **kwargs)
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   411
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   412
    @deprecated("[3.4] use vreg['actions'].select_or_none(...)")
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   413
    def select_action(self, oid, *args, **kwargs):
2770
356e9d7c356d R propagate registry API changes
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2705
diff changeset
   414
        return self['actions'].select_or_none(oid, *args, **kwargs)
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   415
2793
bfb21f7a0d13 R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2777
diff changeset
   416
    @deprecated("[3.4] use vreg['views'].select(...)")
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
   417
    def select_view(self, __vid, req, rset=None, **kwargs):
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   418
        return self['views'].select(__vid, req, rset=rset, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   419
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
    # properties handling #####################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   421
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
    def user_property_keys(self, withsitewide=False):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
        if withsitewide:
2223
59588e2d5cd1 close #343467, no sources sections in site properties
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   424
            return sorted(k for k in self['propertydefs']
59588e2d5cd1 close #343467, no sources sections in site properties
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   425
                          if not k.startswith('sources.'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   426
        return sorted(k for k, kd in self['propertydefs'].iteritems()
2223
59588e2d5cd1 close #343467, no sources sections in site properties
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   427
                      if not kd['sitewide'] and not k.startswith('sources.'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   428
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   429
    def register_property(self, key, type, help, default=None, vocabulary=None,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
                          sitewide=False):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
        """register a given property"""
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   432
        properties = self['propertydefs']
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   433
        assert type in YAMS_TO_PY
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   434
        properties[key] = {'type': type, 'vocabulary': vocabulary,
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   435
                           'default': default, 'help': help,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   436
                           'sitewide': sitewide}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   437
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   438
    def property_info(self, key):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   439
        """return dictionary containing description associated to the given
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   440
        property key (including type, defaut value, help and a site wide
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   441
        boolean)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   442
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   443
        try:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   444
            return self['propertydefs'][key]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   445
        except KeyError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   446
            if key.startswith('system.version.'):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
                soft = key.split('.')[-1]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448
                return {'type': 'String', 'sitewide': True,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
                        'default': None, 'vocabulary': None,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
                        'help': _('%s software version of the database') % soft}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   451
            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
   452
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   453
    def property_value(self, key):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   454
        try:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   455
            return self['propertyvalues'][key]
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   456
        except KeyError:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   457
            return self['propertydefs'][key]['default']
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   458
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   459
    def typed_value(self, key, value):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   460
        """value is an unicode string, return it correctly typed. Let potential
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
        type error propagates.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   462
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   463
        pdef = self.property_info(key)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   464
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   465
            value = YAMS_TO_PY[pdef['type']](value)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   466
        except (TypeError, ValueError):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   467
            raise ValueError(_('bad value'))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   468
        vocab = pdef['vocabulary']
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   469
        if vocab is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   470
            if callable(vocab):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   471
                vocab = vocab(key, None) # XXX need a req object
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   472
            if not value in vocab:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   473
                raise ValueError(_('unauthorized value'))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
        return value
1475
5c1ec97f317e should not be necessary anymore to add entity class to __implements__
sylvain.thenault@logilab.fr
parents: 1357
diff changeset
   475
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   476
    def init_properties(self, propvalues):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   477
        """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
   478
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   479
        self.initialized = True
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   480
        values = self['propertyvalues']
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   481
        for key, val in propvalues:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   482
            try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   483
                values[key] = self.typed_value(key, val)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   484
            except ValueError:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   485
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   486
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   487
            except UnknownProperty, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   488
                self.warning('%s (you should probably delete that property '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   489
                             'from the database)', ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   490
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2025
diff changeset
   491
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   492
from datetime import datetime, date, time, timedelta
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   493
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   494
YAMS_TO_PY = {
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   495
    'Boolean':  bool,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   496
    'String' :  unicode,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   497
    'Password': str,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   498
    'Bytes':    Binary,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   499
    'Int':      int,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   500
    'Float':    float,
1016
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   501
    'Date':     date,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   502
    'Datetime': datetime,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   503
    'Time':     time,
26387b836099 use datetime instead of mx.DateTime
sylvain.thenault@logilab.fr
parents: 823
diff changeset
   504
    'Interval': timedelta,
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   505
    }
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   506