83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2016 Douglas S. Blank <doug.blank@gmail.com>
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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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from gramps.plugins.db.dbapi.dbapi import DBAPI
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from gramps.plugins.db.dbapi.sqlite import Sqlite
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from gramps.gen.db import DBBACKEND
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from gramps.gen.db.generic import DbGeneric, LOG
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import os
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import glob
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class InMemoryDB(DBAPI):
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"""
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A DB-API 2.0 In-memory SQL database.
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"""
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@classmethod
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def get_class_summary(cls):
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summary = DBAPI.get_class_summary()
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summary.update({
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"Database location": "in memory",
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})
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return summary
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def _initialize(self, directory):
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"""
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Create an in-memory sqlite database.
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"""
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self.dbapi = Sqlite(":memory:")
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self._create_schema()
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def write_version(self, directory):
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"""Write files for a newly created DB."""
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versionpath = os.path.join(directory, DBBACKEND)
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LOG.debug("Write database backend file to 'inmemorydb'")
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with open(versionpath, "w") as version_file:
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version_file.write("inmemorydb")
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versionpath = os.path.join(directory, "bdbversion.txt")
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with open(versionpath, "w") as version_file:
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version_file.write(str(self.VERSION))
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def load(self, directory, callback=None, mode=None,
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force_schema_upgrade=False,
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force_bsddb_upgrade=False,
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force_bsddb_downgrade=False,
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force_python_upgrade=False,
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update=True):
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DbGeneric.load(self, directory,
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callback,
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mode,
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force_schema_upgrade,
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force_bsddb_upgrade,
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force_bsddb_downgrade,
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force_python_upgrade)
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# Dictionary-specific load:
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from gramps.plugins.importer.importxml import importData
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from gramps.cli.user import User
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if self._directory:
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backups = sorted(glob.glob(os.path.join(
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self._directory, "backup-*.gramps")), reverse=True)
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if backups:
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filename = backups[0]
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if os.path.isfile(filename):
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importData(self, filename, User())
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self.reindex_reference_map(lambda progress: None)
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self.rebuild_secondary(lambda progress: None)
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self.has_changed = False
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