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Tue, Aug 6, 22:09

models.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2015 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.
"""OAI repository database models."""
from invenio.ext.sqlalchemy import db
from sqlalchemy import event
class OaiREPOSITORY(db.Model):
"""Represents a OaiREPOSITORY record."""
__tablename__ = 'oaiREPOSITORY'
id = db.Column(db.MediumInteger(9, unsigned=True), nullable=False,
primary_key=True, autoincrement=True)
setName = db.Column(db.String(255), nullable=False,
server_default='')
setSpec = db.Column(db.String(255), nullable=False,
server_default='')
setCollection = db.Column(db.String(255), nullable=False,
server_default='')
setDescription = db.Column(db.Text, nullable=False)
setDefinition = db.Column(db.Text, nullable=False)
setRecList = db.Column(db.iLargeBinary, nullable=True)
last_updated = db.Column(db.DateTime, nullable=False,
server_default='1970-01-01 00:00:00')
p1 = db.Column(db.Text, nullable=False, default='')
f1 = db.Column(db.Text, nullable=False, default='')
m1 = db.Column(db.Text, nullable=False, default='')
p2 = db.Column(db.Text, nullable=False, default='')
f2 = db.Column(db.Text, nullable=False, default='')
m2 = db.Column(db.Text, nullable=False, default='')
p3 = db.Column(db.Text, nullable=False, default='')
f3 = db.Column(db.Text, nullable=False, default='')
m3 = db.Column(db.Text, nullable=False, default='')
@classmethod
def update_setdefinition_listener(cls, mapper, connection, target):
"""Update setDefinition attribute on before_insert/before_update events."""
# FIXME: Next two lines
op1 = ''
op2 = ''
# Set fields to empty string if none.
for attr in ['p1', 'f1', 'm1', 'p2', 'f2', 'm2', 'p3', 'f3', 'm3',
'setCollection', 'setName', 'setSpec', 'setDescription']:
if getattr(target, attr) is None:
setattr(target, attr, '')
target.setDefinition = \
'c=' + target.setCollection + ';' + \
'p1=' + target.p1 + ';' + \
'f1=' + target.f1 + ';' + \
'm1=' + target.m1 + ';' + \
'op1=' + op1 + ';' + \
'p2=' + target.p2 + ';' + \
'f2=' + target.f2 + ';' + \
'm2=' + target.m2 + ';' + \
'op2=' + op2 + ';' + \
'p3=' + target.p3 + ';' + \
'f3=' + target.f3 + ';' + \
'm3=' + target.m3 + ';'
# Connect Alchemy event listeners to update setDefinition on INSERT and UPDATE
event.listen(
OaiREPOSITORY, 'before_insert', OaiREPOSITORY.update_setdefinition_listener
)
event.listen(
OaiREPOSITORY, 'before_update', OaiREPOSITORY.update_setdefinition_listener
)
__all__ = ('OaiREPOSITORY',)

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