bbgo_origin/pkg/migrations/sqlite3/20220307132917_add_positions.go

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2022-03-07 05:44:43 +00:00
package sqlite3
import (
"context"
"github.com/c9s/rockhopper"
)
func init() {
AddMigration(upAddPositions, downAddPositions)
}
func upAddPositions(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
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_, err = tx.ExecContext(ctx, "CREATE TABLE `positions`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `strategy` VARCHAR(32) NOT NULL,\n `strategy_instance_id` VARCHAR(64) NOT NULL,\n `symbol` VARCHAR(20) NOT NULL,\n `quote_currency` VARCHAR(10) NOT NULL,\n `base_currency` VARCHAR(10) NOT NULL,\n -- average_cost is the position average cost\n `average_cost` DECIMAL(16, 8) NOT NULL,\n `base` DECIMAL(16, 8) NOT NULL,\n `quote` DECIMAL(16, 8) NOT NULL,\n `profit` DECIMAL(16, 8) NULL,\n -- trade related columns\n `trade_id` BIGINT NOT NULL,\n `side` VARCHAR(4) NOT NULL, -- side of the trade\n `exchange` VARCHAR(12) NOT NULL, -- exchange of the trade\n `traded_at` DATETIME(3) NOT NULL\n);")
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if err != nil {
return err
}
return err
}
func downAddPositions(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `positions`;")
if err != nil {
return err
}
return err
}