add methods in Repository an dModel for importing data

kontor-gin/internal/models/book.go

@@ -32,6 +32,18 @@ type BookDTO struct {
 	Title     string             `json:"title"`
 }
 
+func (dto BookDTO) ConvertDTOToModel() Book {
+	model := Book{
+		ID:        dto.ID,
+		CreatedAt: dto.CreatedAt.Time,
+		UpdatedAt: dto.UpdatedAt.Time,
+		DeletedAt: dto.DeletedAt,
+		Version:   dto.Version,
+		Title:     dto.Title,
+	}
+	return model
+}
+
 func ConvertBooksToDtos(books []Book) []BookDTO {
 	dtos := make([]BookDTO, len(books))
 	for i, book := range books {