76 lines
2.7 KiB
Python
76 lines
2.7 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2000-2005 Donald N. Allingham
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# Copyright (C) 2010 Michiel D. Nauta
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# Copyright (C) 2011 Tim G L Lyons
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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"""
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Provide merge capabilities for sources.
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"""
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#-------------------------------------------------------------------------
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#
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# Gramps modules
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#
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#-------------------------------------------------------------------------
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from gen.lib import (Person, Family, Event, Place, Source, Repository,
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MediaObject, Citation)
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from gen.db import DbTxn
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from gen.ggettext import sgettext as _
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from gen.errors import MergeError
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#-------------------------------------------------------------------------
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#
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# MergeSourceQuery
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#
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#-------------------------------------------------------------------------
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class MergeSourceQuery(object):
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"""
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Create database query to merge two sources.
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"""
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def __init__(self, dbstate, phoenix, titanic):
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self.database = dbstate.db
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self.phoenix = phoenix
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self.titanic = titanic
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def execute(self):
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"""
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Merges to sources into a single source.
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"""
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new_handle = self.phoenix.get_handle()
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old_handle = self.titanic.get_handle()
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self.phoenix.merge(self.titanic)
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with DbTxn(_("Merge Source"), self.database) as trans:
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self.database.commit_source(self.phoenix, trans)
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for (class_name, handle) in self.database.find_backlink_handles(
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old_handle):
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if class_name == Citation.__name__:
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citation = self.database.get_citation_from_handle(handle)
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assert(citation.get_reference_handle() == old_handle)
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citation.set_reference_handle(new_handle)
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self.database.commit_citation(citation, trans)
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else:
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raise MergeError("Encounter an object of type %s that has "
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"a source reference." % class_name)
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self.database.remove_source(old_handle, trans)
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