package sqlite3 import ( "context" "github.com/c9s/rockhopper" ) func init() { AddMigration(upAddDepositsTable, downAddDepositsTable) } func upAddDepositsTable(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is applied. _, err = tx.ExecContext(ctx, "CREATE TABLE `deposits`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `exchange` VARCHAR(24) NOT NULL,\n -- asset is the asset name (currency)\n `asset` VARCHAR(10) NOT NULL,\n `address` VARCHAR(64) NOT NULL DEFAULT '',\n `amount` DECIMAL(16, 8) NOT NULL,\n `txn_id` VARCHAR(64) NOT NULL,\n `time` DATETIME(3) NOT NULL\n);") if err != nil { return err } _, err = tx.ExecContext(ctx, "CREATE UNIQUE INDEX `deposits_txn_id` ON `deposits` (`exchange`, `txn_id`);") if err != nil { return err } return err } func downAddDepositsTable(ctx context.Context, tx rockhopper.SQLExecutor) (err error) { // This code is executed when the migration is rolled back. _, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS `deposits_txn_id`;") if err != nil { return err } _, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `deposits`;") if err != nil { return err } return err }