RealtimeSignalProcessor for widgy that understands making commits need to reindex their owners.

signals.py

from django.db import models
from haystack.signals import RealtimeSignalProcessor

from widgy.models.versioning import VersionCommit


class WidgyRealtimeSignalProcessor(RealtimeSignalProcessor):
    def handle_commit(self, sender, instance, **kwargs):
        for owner in instance.tracker.owners:
            self.handle_save(sender=type(owner), instance=owner, **kwargs)

    def setup(self):
        super(WidgyRealtimeSignalProcessor, self).setup()
        models.signals.post_save.connect(self.handle_commit, sender=VersionCommit)

    def teardown(self):
        super(WidgyRealtimeSignalProcessor, self).teardown()
        models.signals.post_save.disconnect(self.handle_commit, sender=VersionCommit)