M src/app/init.go → src/app/init.go

@@ -43,11 +43,6 @@ }
 	if bookmakersAmount == 0 {
 		InsertSampleData()
 	}
-
-	err = DB.Model(&Bookmaker{}).Where("default_commission > 0").Pluck("id", &ExchangeIDs).Error
-	if err != nil {
-		log.Println("could not get exchange ids: " + err.Error())
-	}
 }
 
 func InsertSampleData() {

M src/app/records.go → src/app/records.go

@@ -43,7 +43,7 @@ if e.Won == nil || e.Odds == nil {
 		log.Fatalf("please, update e.Won and e.Odds first")
 	}
 
-	if IsExchange(e.BookmakerID) {
+	if e.Bookmaker.IsExchange() {
 		r := (int(e.Amount) * (int(*e.Odds) - 100)) / 100
 		if *e.Won {
 			value = int(e.Amount) - int(e.Amount)*int(e.Commission)/10000

M src/app/utils.go → src/app/utils.go

@@ -1,7 +1,5 @@
 package app
 
-var ExchangeIDs []uint
-
 func IndexOf[T comparable](slice []T, element T) int {
 	for i, el := range slice {
 		if el == element {
@@ -11,10 +9,6 @@ }
 	return -1
 }
 
-func Contains[T comparable](slice []T, element T) bool {
-	return IndexOf(slice, element) != -1
-}
-
-func IsExchange(bookmakerID uint) bool {
-	return Contains(ExchangeIDs, bookmakerID)
+func (b Bookmaker) IsExchange() bool {
+	return b.DefaultCommission != 0
 }