# TRANSLATORS: http://www.dynarch.com/static/jscalendar-1.0/doc/html/reference.html#node_sec_5.3.5

                # TRANSLATORS: http://docs.python.org/release/2.5/lib/module-time.html

                from_date = datetime.strptime(

            except ValueError:

                # On ignore silencieusement la date invalide reçue.

                pass

                # TRANSLATORS: http://www.dynarch.com/static/jscalendar-1.0/doc/html/reference.html#node_sec_5.3.5

                # TRANSLATORS: http://docs.python.org/release/2.5/lib/module-time.html

                to_date = datetime.strptime(

            except ValueError:

                # On ignore silencieusement la date invalide reçue.

                pass

            aggregates.items.c.servicename,

        )

        aggregates.add_join((Event, CorrEvent.idcause == Event.idevent))

            Event.idsupitem == aggregates.items.c.idsupitem))

        aggregates.add_filter(aggregates.items.c.idsupitem == idsupitem)

        events = VigiboardRequest(user)

        events.add_table(CorrEvent)

        events.add_join((Event, CorrEvent.idcause == Event.idevent))

            Event.idsupitem == events.items.c.idsupitem))

        events.add_filter(CorrEvent.idcorrevent.in_(ids))

        events.generate_request()

        idevents = [cause.idcause for cause in events.req]

        # page est affichée, on en informe l'utilisateur.

        last_modification = datetime.fromtimestamp(last_modification)

        cur_last_modification = get_last_modification_timestamp(idevents, None)

                        username=user.user_name,

                        timestamp=datetime.now(),

                    )

                event.trouble_ticket = trouble_ticket

            # Changement du statut d'acquittement.

        events = VigiboardRequest(user, False)

        events.add_table(CorrEvent.idcorrevent)

        events.add_join((Event, CorrEvent.idcause == Event.idevent))

            Event.idsupitem == events.items.c.idsupitem))

        events.add_filter(CorrEvent.idcorrevent == idcorrevent)

        return dict(groups=hierarchy)

                                    value_if_none=datetime.now()):

    """

    opérée sur l'un des événements dont l'identifiant

    fait partie de la liste passée en paramètre.

    """

        except ImportError:

            pass

    return plugins_instances