bbgo_origin/pkg/migrations/20200721225616_trades.go

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2021-01-13 16:33:28 +00:00
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
)
func init() {
rockhopper.AddMigration(upTrades, downTrades)
}
func upTrades(ctx context.Context, tx *sql.Tx) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE TABLE `trades` (\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `id` BIGINT UNSIGNED,\n `exchange` VARCHAR(24) NOT NULL DEFAULT '',\n `symbol` VARCHAR(8) NOT NULL,\n `price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quote_quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee_currency` VARCHAR(4) NOT NULL,\n `is_buyer` BOOLEAN NOT NULL DEFAULT FALSE,\n `is_maker` BOOLEAN NOT NULL DEFAULT FALSE,\n `side` VARCHAR(4) NOT NULL DEFAULT '',\n `traded_at` DATETIME(3) NOT NULL,\n PRIMARY KEY (`gid`),\n UNIQUE KEY `id` (`id`)\n) ENGINE=InnoDB;")
if err != nil {
return err
}
return err
}
func downTrades(ctx context.Context, tx *sql.Tx) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP TABLE `trades`;")
if err != nil {
return err
}
return err
}