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60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package service
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import (
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"context"
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"github.com/jmoiron/sqlx"
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"github.com/pkg/errors"
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"github.com/c9s/bbgo/pkg/types"
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)
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type ProfitService struct {
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DB *sqlx.DB
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}
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func NewProfitService(db *sqlx.DB) *ProfitService {
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return &ProfitService{db}
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}
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func (s *ProfitService) Load(ctx context.Context, id int64) (*types.Trade, error) {
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var trade types.Trade
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rows, err := s.DB.NamedQuery("SELECT * FROM trades WHERE id = :id", map[string]interface{}{
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"id": id,
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})
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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if rows.Next() {
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err = rows.StructScan(&trade)
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return &trade, err
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}
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return nil, errors.Wrapf(ErrTradeNotFound, "trade id:%d not found", id)
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}
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func (s *ProfitService) scanRows(rows *sqlx.Rows) (trades []types.Trade, err error) {
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for rows.Next() {
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var trade types.Trade
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if err := rows.StructScan(&trade); err != nil {
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return trades, err
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}
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trades = append(trades, trade)
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}
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return trades, rows.Err()
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}
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func (s *ProfitService) Insert(trade types.Trade) error {
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_, err := s.DB.NamedExec(`
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INSERT INTO profits (id, exchange, symbol, trade_id, average_cost, profit, price, quantity, quote_quantity, side, traded_at, is_margin, is_futures, is_isolated)
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VALUES (:id, :exchange, :order_id, :symbol, :price, :quantity, :quote_quantity, :side, :is_buyer, :is_maker, :fee, :fee_currency, :traded_at, :is_margin, :is_futures, :is_isolated)`,
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trade)
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return err
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}
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