import trac.ticket.notification as note


def get_recipients(self, tktid):
        notify_reporter = self.config.getbool('notification',
                                              'always_notify_reporter')
        notify_owner = self.config.getbool('notification',
                                           'always_notify_owner')
        notify_updater = self.config.getbool('notification', 
                                             'always_notify_updater')

        ccrecipients = self.prev_cc
        torecipients = []
        cursor = self.db.cursor()
        
        # Harvest email addresses from the cc, reporter, and owner fields
        cursor.execute("SELECT cc,reporter,owner FROM ticket WHERE id=%s",
                       (tktid,))
        row = cursor.fetchone()
        if row:
            ccrecipients += row[0] and row[0].replace(',', ' ').split() or []
            self.reporter = row[1]
            self.owner = row[2]
            if notify_reporter:
                torecipients.append(row[1])
            if notify_owner:
                torecipients.append(row[2])

        # Harvest email addresses from the author field of ticket_change(s)
        if notify_updater:
            cursor.execute("SELECT DISTINCT author,ticket FROM ticket_change "
                           "WHERE ticket=%s", (tktid,))
            for author,ticket in cursor:
                torecipients.append(author)

        # Suppress the updater from the recipients
        updater = None
        cursor.execute("SELECT author FROM ticket_change WHERE ticket=%s "
                       "ORDER BY time DESC LIMIT 1", (tktid,))
        for updater, in cursor:
            break
        else:
            cursor.execute("SELECT reporter FROM ticket WHERE id=%s",
                           (tktid,))
            for updater, in cursor:
                break

        if not notify_updater:
            filter_out = True
#             if notify_reporter and (updater == self.reporter):
#                 filter_out = False
#             if notify_owner and (updater == self.owner):
#                 filter_out = False
            if filter_out:
                torecipients = [r for r in torecipients if r and r != updater]
                ccrecipients = [r for r in ccrecipients if r and r != updater]
        elif updater:
            torecipients.append(updater)

        return (torecipients, ccrecipients)

note.TicketNotifyEmail.get_recipients = get_recipients