backend: add car

go-backend/internal/services/car_service.go

@@ -0,0 +1,67 @@
+package services
+
+import (
+	"GoMembership/internal/models"
+
+	"gorm.io/gorm"
+)
+
+type CarServiceInterface interface {
+	Create(car *models.Car) (*models.Car, error)
+	Update(car *models.Car) (*models.Car, error)
+	Delete(carID *uint) error
+	FromID(id uint) (*models.Car, error)
+	GetAll() (*[]models.Car, error)
+}
+
+type CarService struct {
+	DB *gorm.DB
+}
+
+// Create a new car
+func (s *CarService) Create(car *models.Car) (*models.Car, error) {
+
+	err := car.Create(s.DB)
+	if err != nil {
+		return nil, err
+	}
+	return car, nil
+}
+
+// Update an existing car
+func (s *CarService) Update(car *models.Car) (*models.Car, error) {
+	err := car.Update(s.DB)
+	if err != nil {
+		return nil, err
+	}
+	return car, nil
+}
+
+// Delete a car (soft delete)
+func (s *CarService) Delete(carID *uint) error {
+	var car models.Car
+	err := car.FromID(s.DB, *carID)
+	if err != nil {
+		return err
+	}
+	return car.Delete(s.DB)
+}
+
+// GetByID fetches a car by its ID
+func (s *CarService) FromID(id uint) (*models.Car, error) {
+	car := &models.Car{}
+	err := car.FromID(s.DB, id)
+	if err != nil {
+		return nil, err
+	}
+	return car, nil
+}
+
+// GetAll retrieves all cars
+func (s *CarService) GetAll() (*[]models.Car, error) {
+	var cars []models.Car
+	if err := s.DB.Find(&cars).Error; err != nil {
+		return nil, err
+	}
+	return &cars, nil
+}