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recid.py
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Wed, Aug 7, 03:11

recid.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2014 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
invenio.modules.pid_store.providers.local_doi_provider
----------------------------------------------------------
"""
from sqlalchemy.exc import SQLAlchemyError
from invenio.ext.sqlalchemy import db
from invenio_records.models import Record
from invenio.modules.pidstore.provider import PidProvider
class RecordID(PidProvider):
""" Provider for recids"""
pid_type = 'recid'
def create_new_pid(self, pid_value):
"""
Creates a new row inside the ``Record`` table.
If ``pid_value`` is not ``None`` will be use as ``id`` to create this
new row.
"""
if pid_value is not None:
record = Record(id=int(pid_value))
else:
record = Record()
try:
db.session.add(record)
db.session.commit()
except SQLAlchemyError:
db.session.rollback()
raise ValueError("Duplicate value for %s" % (pid_value, ))
return str(record.id)
def reserve(self, pid, *args, **kwargs):
pid.log("RESERVE", "Successfully reserved recid")
return True
@classmethod
def is_provider_for_pid(cls, pid_str):
"""
A recid is valid is it is ``None`` or ``Integer``.
"""
return pid_str is None or pid_str.isdigit()

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