Files
pyfa/eos/db/migration.py
blitzmann ffaa707ea9 Fix #62
2014-03-17 18:13:29 -04:00

60 lines
2.4 KiB
Python
Executable File

import sqlalchemy
def update(saveddata_engine):
checkPriceFailures(saveddata_engine)
checkApiDefaultChar(saveddata_engine)
checkFitBooster(saveddata_engine)
def checkPriceFailures(saveddata_engine):
# Check if we have 'failed' column
try:
saveddata_engine.execute("SELECT failed FROM prices")
except sqlalchemy.exc.DatabaseError:
# As we don't have any important data there, let's just drop
# and recreate whole table
from eos.db.saveddata.price import prices_table
# Attempt to drop/create table only if it's already there
try:
prices_table.drop(saveddata_engine)
prices_table.create(saveddata_engine)
except sqlalchemy.exc.DatabaseError:
pass
def checkApiDefaultChar(saveddata_engine):
try:
saveddata_engine.execute("SELECT * FROM characters LIMIT 1")
# If table doesn't exist, it means we're doing everything from scratch
# and sqlalchemy will process everything as needed
except sqlalchemy.exc.DatabaseError:
pass
# If not, we're running on top of existing DB
else:
# Check that we have columns
try:
saveddata_engine.execute("SELECT defaultChar, chars FROM characters LIMIT 1")
# If we don't, create them
# This is ugly as hell, but we can't use proper migrate packages as it
# will require us to rebuild skeletons, including mac
except sqlalchemy.exc.DatabaseError:
saveddata_engine.execute("ALTER TABLE characters ADD COLUMN defaultChar INTEGER;")
saveddata_engine.execute("ALTER TABLE characters ADD COLUMN chars VARCHAR;")
def checkFitBooster(saveddata_engine):
try:
saveddata_engine.execute("SELECT * FROM fits LIMIT 1")
# If table doesn't exist, it means we're doing everything from scratch
# and sqlalchemy will process everything as needed
except sqlalchemy.exc.DatabaseError:
pass
# If not, we're running on top of existing DB
else:
# Check that we have columns
try:
saveddata_engine.execute("SELECT booster FROM fits LIMIT 1")
# If we don't, create them
except sqlalchemy.exc.DatabaseError:
saveddata_engine.execute("ALTER TABLE fits ADD COLUMN booster BOOLEAN;")
# Set NULL data to 0 (needed in case of downgrade, see GH issue #62
saveddata_engine.execute("UPDATE fits SET booster = 0 WHERE booster IS NULL;")