# -*- coding: utf-8 -*-

#

# Copyright IRI (c) 2013

#

# contact@iri.centrepompidou.fr

#

# This software is governed by the CeCILL-B license under French law and

# abiding by the rules of distribution of free software.  You can  use, 

# modify and/ or redistribute the software under the terms of the CeCILL-B

# license as circulated by CEA, CNRS and INRIA at the following URL

# "http://www.cecill.info". 

#

# As a counterpart to the access to the source code and  rights to copy,

# modify and redistribute granted by the license, users are provided only

# with a limited warranty  and the software's author,  the holder of the

# economic rights,  and the successive licensors  have only  limited

# liability. 

#

# In this respect, the user's attention is drawn to the risks associated

# with loading,  using,  modifying and/or developing or reproducing the

# software by the user in light of its specific status of free software,

# that may mean  that it is complicated to manipulate,  and  that  also

# therefore means  that it is reserved for developers  and  experienced

# professionals having in-depth computer knowledge. Users are therefore

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# The fact that you are presently reading this means that you have had

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#

from django.conf import settings

from django.db import models

from haystack import signals

import p4l.models.signals

class P4lSignalProcessor(signals.BaseSignalProcessor):

    def handle_delete(self, sender, instance, **kwargs):

        if getattr(settings, "REALTIME_INDEXING", True):

            signals.BaseSignalProcessor.handle_delete(self, sender, instance, **kwargs)

    def handle_save(self, sender, instance, **kwargs):

        if getattr(settings, "REALTIME_INDEXING", True):

            signals.BaseSignalProcessor.handle_save(self, sender, instance, **kwargs)

    def __connect_signals(self, klass):        

        p4l.models.signals.record_saved.connect(self.handle_save, sender=klass)

        models.signals.post_delete.connect(self.handle_delete, sender=klass)        

    def __disconnect_signals(self, klass):

        p4l.models.signals.record_saved.disconnect(self.handle_save, sender=klass)

        models.signals.post_delete.disconnect(self.handle_delete, sender=klass)

    def setup(self):

        #put import here to avoid circular         

        from p4l.models.data import Record

        self.__connect_signals(Record)

    def teardown(self):

        from p4l.models.data import Record

        self.__disconnect_signals(Record)