Refactor parsing & select order by impl (#6)

Reviewed-on: #6

repository/repository.go

@@ -23,7 +23,7 @@ func NewRepository[T HasPK](conn *simpleorm.DBConnection, orm *simpleorm.ORM) *R
 }
 
 func (r *Repository[T]) SelectAll() []*T {
-	selectExec, err := exec.CreateSelect[T](r.orm, "")
+	selectExec, err := exec.CreateSelect[T](r.orm)
 	if err != nil {
 		log.LogError("Failed to create select execution: %s", err)
 		return []*T{}
@@ -53,7 +53,7 @@ func (r *Repository[T]) SelectByPk(pks ...any) *T {
 
 	var whereStmtBuilder strings.Builder
 
-	for _, constr := range table.Constraints {
+	for _, constr := range table.Constraints() {
 		if constr.Type != "pk" {
 			continue
 		}
@@ -68,12 +68,14 @@ func (r *Repository[T]) SelectByPk(pks ...any) *T {
 
 	}
 
-	selectExec, err := exec.CreateSelect[T](r.orm, whereStmtBuilder.String(), pks)
+	selectExec, err := exec.CreateSelect[T](r.orm)
 	if err != nil {
 		log.LogError("Failed to create select execution: %s", err)
 		return nil
 	}
 
+	selectExec.Where(whereStmtBuilder.String(), pks)
+
 	err = selectExec.Execute(r.conn)
 	if err != nil {
 		log.LogError("Failed to load entity: %s", err)