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transaction_item.go
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/
transaction_item.go
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package transaction
import (
"time"
"github.com/anggi-susanto/go-exercise/entity"
)
type TransactionItem struct {
ID *uint32
TransactionID uint32
SkuID uint32
BasePrice float64
Discount *float64
Qty int
CreatedDate time.Time
UpdatedDate *time.Time
}
func NewTransactionItem(transactionID uint32, skuID uint32, basePrice float64, discount float64, qty int) (*TransactionItem, error) {
t := &TransactionItem{
TransactionID: transactionID,
SkuID: skuID,
BasePrice: basePrice,
Discount: &discount,
Qty: qty,
CreatedDate: time.Now(),
}
err := t.Validate()
if err != nil {
return nil, entity.ErrInvalidEntity
}
return t, nil
}
func (t *TransactionItem) Validate() error {
if t.TransactionID < 1 || t.SkuID < 1 || t.BasePrice < 1 || t.Qty < 1 {
return entity.ErrInvalidEntity
}
return nil
}