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submit_2015_03_03_fix_models.py
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Wed, Jul 24, 22:53

submit_2015_03_03_fix_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.
"""Upgrade Submit models."""
import warnings
from invenio.ext.sqlalchemy import db
from invenio.legacy.dbquery import run_sql
from invenio.modules.upgrader.api import op
from sqlalchemy.exc import OperationalError
depends_on = ['invenio_release_1_1_0']
def info():
"""Info."""
return "Add a autoincrement id in sbmCOLLECTION_sbmDOCTYPE " + \
"and sbmCOLLECTION_sbmCOLLECTION table"
def do_upgrade():
"""Implement your upgrades here."""
# Table sbmCOLLECTION_sbmCOLLECTION
# add column "id" in the table
op.add_column('sbmCOLLECTION_sbmCOLLECTION',
db.Column('id', db.Integer(11), nullable=False))
# set all new ids
records = run_sql("""SELECT id_father, id_son FROM """
"""sbmCOLLECTION_sbmCOLLECTION AS ssc """
"""ORDER BY ssc.id_father, ssc.id_son""")
for index, rec in enumerate(records):
run_sql("""UPDATE sbmCOLLECTION_sbmCOLLECTION
SET id = %s WHERE id_father = %s AND id_son = %s """,
(index + 1, rec[0], rec[1]))
# drop primary keys
try:
op.drop_constraint(None, 'sbmCOLLECTION_sbmCOLLECTION',
type_='primary')
except OperationalError:
# the primary key is already dropped
warnings.warn("""Primary key of sbmCOLLECTION_sbmCOLLECTION """
"""table has been already dropped.""")
# create new primary key with id
op.create_primary_key('pk_sbmCOLLECTION_sbmCOLLECTION_id',
'sbmCOLLECTION_sbmCOLLECTION', ['id'])
# set id as autoincrement
op.alter_column('sbmCOLLECTION_sbmCOLLECTION', 'id',
existing_type=db.Integer(11),
existing_nullable=False, autoincrement=True)
# fix columns id_father and id_son
op.alter_column('sbmCOLLECTION_sbmCOLLECTION', 'id_father',
existing_type=db.Integer(11),
nullable=True, server_default=None)
op.alter_column('sbmCOLLECTION_sbmCOLLECTION', 'id_son',
existing_type=db.Integer(11),
nullable=False, server_default=None)
op.create_index('id_father', 'sbmCOLLECTION_sbmCOLLECTION',
columns=['id_father'])
# Table sbmCOLLECTION_sbmDOCTYPE
# add column "id" in the table
op.add_column('sbmCOLLECTION_sbmDOCTYPE',
db.Column('id', db.Integer(11), nullable=False))
# set all new ids
records = run_sql("""SELECT id_father, id_son
FROM sbmCOLLECTION_sbmDOCTYPE AS ssd
ORDER BY ssd.id_father, ssd.id_son""")
for index, rec in enumerate(records):
run_sql("""UPDATE sbmCOLLECTION_sbmDOCTYPE
SET id = %s WHERE id_father = %s AND id_son = %s """,
(index + 1, rec[0], rec[1]))
# drop primary keys
op.drop_constraint('id_father', 'sbmCOLLECTION_sbmDOCTYPE', type_='primary')
# create new primary key with id
op.create_primary_key('pk_sbmCOLLECTION_sbmDOCTYPE_id',
'sbmCOLLECTION_sbmDOCTYPE', ['id'])
# set id as autoincrement
op.alter_column('sbmCOLLECTION_sbmDOCTYPE', 'id',
existing_type=db.Integer(11),
existing_nullable=False, autoincrement=True)
# fix columns id_father and id_son
op.alter_column('sbmCOLLECTION_sbmDOCTYPE', 'id_father',
existing_type=db.Integer(11),
nullable=True, server_default=None)
op.alter_column('sbmCOLLECTION_sbmDOCTYPE', 'id_son',
existing_type=db.Char(10),
nullable=False, server_default=None)
op.create_index('id_father', 'sbmCOLLECTION_sbmDOCTYPE',
columns=['id_father'])
def estimate():
"""Estimate running time of upgrade in seconds (optional)."""
num_ssc = run_sql("SELECT count(*) FROM sbmCOLLECTION_sbmCOLLECTION")
num_ssd = run_sql("SELECT count(*) FROM sbmCOLLECTION_sbmDOCTYPE")
total = int(num_ssc[0][0]) + int(num_ssd[0][0])
return int(float(total) / 1000) + 1
def pre_upgrade():
"""Run pre-upgrade checks (optional)."""
# Example of raising errors:
# raise RuntimeError("Description of error 1", "Description of error 2")
def post_upgrade():
"""Run post-upgrade checks (optional)."""
# Example of issuing warnings:
# warnings.warn("A continuable error occurred")

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