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Source code for galaxy.model.migrate.versions.0024_page_slug_unique_constraint
""" Remove unique constraint from page slugs to allow creating a page with the same slug as a deleted page. """ import logging from sqlalchemy import ( MetaData, Table ) from galaxy.model.migrate.versions.util import ( add_index, drop_index ) log = logging.getLogger(__name__) metadata = MetaData()[docs]def upgrade(migrate_engine): print(__doc__) metadata.bind = migrate_engine metadata.reflect() Page_table = Table("page", metadata, autoload=True) try: # Sqlite doesn't support .alter, so we need to drop an recreate drop_index("ix_page_slug", Page_table, 'slug') add_index("ix_page_slug", Page_table, 'slug', unique=False) except Exception: # Mysql doesn't have a named index, but alter should work Page_table.c.slug.alter(unique=False)[docs]def downgrade(migrate_engine): pass