diff --git a/migrations/versions/8baf97427327_.py b/migrations/versions/8baf97427327_.py index bb6c7274a..1ee67b1f9 100644 --- a/migrations/versions/8baf97427327_.py +++ b/migrations/versions/8baf97427327_.py @@ -16,18 +16,35 @@ branch_labels = None depends_on = None +bind = op.get_context().bind +insp = sa.inspect(bind) +tables = insp.get_table_names() +sqlite = bind.engine.name == 'sqlite' + + +def column_exists(table_name, column_name): + columns = insp.get_columns(table_name) + return any(c["name"] == column_name for c in columns) + + def upgrade(): with op.batch_alter_table('table_episodes', schema=None) as batch_op: - batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) - batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_episodes', 'created_at_timestamp'): + batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_episodes', 'updated_at_timestamp'): + batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) with op.batch_alter_table('table_movies', schema=None) as batch_op: - batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) - batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_movies', 'created_at_timestamp'): + batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_movies', 'updated_at_timestamp'): + batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) with op.batch_alter_table('table_shows', schema=None) as batch_op: - batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) - batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_shows', 'created_at_timestamp'): + batch_op.add_column(sa.Column('created_at_timestamp', sa.DateTime(), nullable=True)) + if not column_exists('table_shows', 'updated_at_timestamp'): + batch_op.add_column(sa.Column('updated_at_timestamp', sa.DateTime(), nullable=True)) def downgrade():