package mysql import ( "context" "github.com/c9s/rockhopper" ) func init() { rockhopper.AddMigration(upAddMarginColumns, downAddMarginColumns) } func upAddMarginColumns(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is applied. _, err = tx.ExecContext(ctx, "ALTER TABLE `trades`\n ADD COLUMN `is_margin` BOOLEAN NOT NULL DEFAULT FALSE,\n ADD COLUMN `is_isolated` BOOLEAN NOT NULL DEFAULT FALSE\n ;") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `orders`\n ADD COLUMN `is_margin` BOOLEAN NOT NULL DEFAULT FALSE,\n ADD COLUMN `is_isolated` BOOLEAN NOT NULL DEFAULT FALSE\n ;") if err != nil { return err } return err } func downAddMarginColumns(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is rolled back. _, err = tx.ExecContext(ctx, "ALTER TABLE `trades`\n DROP COLUMN `is_margin`,\n DROP COLUMN `is_isolated`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "ALTER TABLE `orders`\n DROP COLUMN `is_margin`,\n DROP COLUMN `is_isolated`;") if err != nil { return err } return err }