# GNU MediaGoblin -- federated, autonomous media hosting
-# Copyright (C) 2011 MediaGoblin contributors. See AUTHORS.
+# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+import datetime
+
+from sqlalchemy import (MetaData, Table, Column, Boolean, SmallInteger,
+ Integer, Unicode, UnicodeText, DateTime,
+ ForeignKey)
+from sqlalchemy.exc import ProgrammingError
+from sqlalchemy.ext.declarative import declarative_base
+from migrate.changeset.constraint import UniqueConstraint
+
+from mediagoblin.db.sql.util import RegisterMigration
+from mediagoblin.db.sql.models import MediaEntry, Collection, User
+
MIGRATIONS = {}
+
+
+@RegisterMigration(1, MIGRATIONS)
+def ogg_to_webm_audio(db_conn):
+ metadata = MetaData(bind=db_conn.bind)
+
+ file_keynames = Table('core__file_keynames', metadata, autoload=True,
+ autoload_with=db_conn.bind)
+
+ db_conn.execute(
+ file_keynames.update().where(file_keynames.c.name == 'ogg').
+ values(name='webm_audio')
+ )
+ db_conn.commit()
+
+
+@RegisterMigration(2, MIGRATIONS)
+def add_wants_notification_column(db_conn):
+ metadata = MetaData(bind=db_conn.bind)
+
+ users = Table('core__users', metadata, autoload=True,
+ autoload_with=db_conn.bind)
+
+ col = Column('wants_comment_notification', Boolean,
+ default=True, nullable=True)
+ col.create(users, populate_defaults=True)
+ db_conn.commit()
+
+
+@RegisterMigration(3, MIGRATIONS)
+def add_transcoding_progress(db_conn):
+ metadata = MetaData(bind=db_conn.bind)
+
+ media_entry = Table('core__media_entries', metadata, autoload=True,
+ autoload_with=db_conn.bind)
+
+ col = Column('transcoding_progress', SmallInteger)
+ col.create(media_entry)
+ db_conn.commit()
+
+
+class Collection_v0(declarative_base()):
+ __tablename__ = "core__collections"
+
+ id = Column(Integer, primary_key=True)
+ title = Column(Unicode, nullable=False)
+ slug = Column(Unicode)
+ created = Column(DateTime, nullable=False, default=datetime.datetime.now,
+ index=True)
+ description = Column(UnicodeText)
+ creator = Column(Integer, ForeignKey(User.id), nullable=False)
+ items = Column(Integer, default=0)
+
+class CollectionItem_v0(declarative_base()):
+ __tablename__ = "core__collection_items"
+
+ id = Column(Integer, primary_key=True)
+ media_entry = Column(
+ Integer, ForeignKey(MediaEntry.id), nullable=False, index=True)
+ collection = Column(Integer, ForeignKey(Collection.id), nullable=False)
+ note = Column(UnicodeText, nullable=True)
+ added = Column(DateTime, nullable=False, default=datetime.datetime.now)
+ position = Column(Integer)
+
+ ## This should be activated, normally.
+ ## But this would change the way the next migration used to work.
+ ## So it's commented for now.
+ __table_args__ = (
+ UniqueConstraint('collection', 'media_entry'),
+ {})
+
+collectionitem_unique_constraint_done = False
+
+@RegisterMigration(4, MIGRATIONS)
+def add_collection_tables(db_conn):
+ Collection_v0.__table__.create(db_conn.bind)
+ CollectionItem_v0.__table__.create(db_conn.bind)
+
+ global collectionitem_unique_constraint_done
+ collectionitem_unique_constraint_done = True
+
+ db_conn.commit()
+
+
+@RegisterMigration(5, MIGRATIONS)
+def add_mediaentry_collected(db_conn):
+ metadata = MetaData(bind=db_conn.bind)
+
+ media_entry = Table('core__media_entries', metadata, autoload=True,
+ autoload_with=db_conn.bind)
+
+ col = Column('collected', Integer, default=0)
+ col.create(media_entry)
+ db_conn.commit()
+
+
+class ProcessingMetaData_v0(declarative_base()):
+ __tablename__ = 'core__processing_metadata'
+
+ id = Column(Integer, primary_key=True)
+ media_entry_id = Column(Integer, ForeignKey(MediaEntry.id), nullable=False,
+ index=True)
+ callback_url = Column(Unicode)
+
+@RegisterMigration(6, MIGRATIONS)
+def create_processing_metadata_table(db):
+ ProcessingMetaData_v0.__table__.create(db.bind)
+ db.commit()
+
+
+# Okay, problem being:
+# Migration #4 forgot to add the uniqueconstraint for the
+# new tables. While creating the tables from scratch had
+# the constraint enabled.
+#
+# So we have three situations that should end up at the same
+# db layout:
+#
+# 1. Fresh install.
+# Well, easy. Just uses the tables in models.py
+# 2. Fresh install using a git version just before this migration
+# The tables are all there, the unique constraint is also there.
+# This migration should do nothing.
+# But as we can't detect the uniqueconstraint easily,
+# this migration just adds the constraint again.
+# And possibly fails very loud. But ignores the failure.
+# 3. old install, not using git, just releases.
+# This one will get the new tables in #4 (now with constraint!)
+# And this migration is just skipped silently.
+# 4. old install, always on latest git.
+# This one has the tables, but lacks the constraint.
+# So this mitration adds the constraint.
+@RegisterMigration(7, MIGRATIONS)
+def fix_CollectionItem_v0_constraint(db_conn):
+ """Add the forgotten Constraint on CollectionItem"""
+
+ global collectionitem_unique_constraint_done
+ if collectionitem_unique_constraint_done:
+ print "Okay, already done, short circuit"
+ # Reset it. Maybe the whole thing gets run again
+ # For a different db?
+ collectionitem_unique_constraint_done = False
+ return
+
+ metadata = MetaData(bind=db_conn.bind)
+
+ CollectionItem_table = Table('core__collection_items',
+ metadata, autoload=True, autoload_with=db_conn.bind)
+
+ constraint = UniqueConstraint('collection', 'media_entry',
+ name='core__collection_items_collection_media_entry_key',
+ table=CollectionItem_table)
+
+ try:
+ constraint.create()
+ except ProgrammingError as exc:
+ print "***", repr(exc)
+ print "***", repr(exc.statement)
+ print "***", repr(exc.params)
+ print "***", repr(exc.orig)
+ print "*** Ignoring it, you probably have a fresh install from a recent git."
+ db_conn.commit()
projects / mediagoblin.git / blobdiff