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revert db upgrade code

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This commit is contained in:
Phill Ridout 2015-02-18 20:43:51 +00:00
parent 6043d48d8f
commit 14c3d27fed
1 changed files with 125 additions and 1 deletions
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126
openlp/plugins/bibles/lib/upgrade.py
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@ -24,6 +24,8 @@ The :mod:`upgrade` module provides a way for the database and schema that is the
"""
import logging
from sqlalchemy import delete, func, insert, select
log = logging.getLogger(__name__)
__version__ = 1
@ -34,4 +36,126 @@ def upgrade_1(session, metadata):
This upgrade renames a number of keys to a single naming convention.
"""
log.info('No upgrades to perform')
metadata_table = metadata.tables['metadata']
# Copy "Version" to "name" ("version" used by upgrade system)
session.execute(insert(metadata_table).values(
key='name',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'Version'
).as_scalar()
))
# Copy "Copyright" to "copyright"
session.execute(insert(metadata_table).values(
key='copyright',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'Copyright'
).as_scalar()
))
# Copy "Permissions" to "permissions"
session.execute(insert(metadata_table).values(
key='permissions',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'Permissions'
).as_scalar()
))
# Copy "Bookname language" to "book_name_language"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'Bookname language'
)
).scalar()
if value_count > 0:
session.execute(insert(metadata_table).values(
key='book_name_language',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'Bookname language'
).as_scalar()
))
# Copy "download source" to "download_source"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'download source'
)
).scalar()
log.debug('download source: %s', value_count)
if value_count > 0:
session.execute(insert(metadata_table).values(
key='download_source',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'download source'
).as_scalar()
))
# Copy "download name" to "download_name"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'download name'
)
).scalar()
log.debug('download name: %s', value_count)
if value_count > 0:
session.execute(insert(metadata_table).values(
key='download_name',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'download name'
).as_scalar()
))
# Copy "proxy server" to "proxy_server"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'proxy server'
)
).scalar()
log.debug('proxy server: %s', value_count)
if value_count > 0:
session.execute(insert(metadata_table).values(
key='proxy_server',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'proxy server'
).as_scalar()
))
# Copy "proxy username" to "proxy_username"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'proxy username'
)
).scalar()
log.debug('proxy username: %s', value_count)
if value_count > 0:
session.execute(insert(metadata_table).values(
key='proxy_username',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'proxy username'
).as_scalar()
))
# Copy "proxy password" to "proxy_password"
value_count = session.execute(
select(
[func.count(metadata_table.c.value)],
metadata_table.c.key == 'proxy password'
)
).scalar()
log.debug('proxy password: %s', value_count)
if value_count > 0:
session.execute(insert(metadata_table).values(
key='proxy_password',
value=select(
[metadata_table.c.value],
metadata_table.c.key == 'proxy password'
).as_scalar()
))
session.execute(delete(metadata_table)\
.where(metadata_table.c.key == 'dbversion'))
session.commit()