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Finally have bullet-proof upgrade methods.

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This commit is contained in:
Raoul Snyman 2013-04-04 21:51:37 +02:00
parent 9430e569f4
commit e15865c117
1 changed files with 8 additions and 5 deletions
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11
openlp/plugins/songs/lib/upgrade.py
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@ -32,7 +32,7 @@ backend for the Songs plugin
"""
from sqlalchemy import Column, types
from sqlalchemy.sql.expression import func, false, null
from sqlalchemy.sql.expression import func, false, null, text
from openlp.core.lib.db import get_upgrade_op
__version__ = 3
@ -53,7 +53,7 @@ def upgrade_1(session, metadata):
op = get_upgrade_op(session)
op.drop_table(u'media_files_songs')
op.add_column(u'media_files', Column(u'song_id', types.Integer(), server_default=null()))
op.add_column(u'media_files', Column(u'weight', types.Integer(), server_default=0))
op.add_column(u'media_files', Column(u'weight', types.Integer(), server_default=text(u'0')))
if metadata.bind.url.get_dialect().name != 'sqlite':
# SQLite doesn't support ALTER TABLE ADD CONSTRAINT
op.create_foreign_key(u'fk_media_files_song_id', u'media_files', u'songs', [u'song_id', u'id'])
@ -66,8 +66,8 @@ def upgrade_2(session, metadata):
This upgrade adds a create_date and last_modified date to the songs table
"""
op = get_upgrade_op(session)
op.add_column(u'songs', Column(u'create_date', types.DateTime(), server_default=func.now()))
op.add_column(u'songs', Column(u'last_modified', types.DateTime(), server_default=func.now()))
op.add_column(u'songs', Column(u'create_date', types.DateTime(), default=func.now()))
op.add_column(u'songs', Column(u'last_modified', types.DateTime(), default=func.now()))
def upgrade_3(session, metadata):
@ -77,5 +77,8 @@ def upgrade_3(session, metadata):
This upgrade adds a temporary song flag to the songs table
"""
op = get_upgrade_op(session)
if metadata.bind.url.get_dialect().name == 'sqlite':
op.add_column(u'songs', Column(u'temporary', types.Boolean(create_constraint=False), server_default=false()))
else:
op.add_column(u'songs', Column(u'temporary', types.Boolean(), server_default=false()))