backend: add car

go-backend/internal/repositories/car_repository.go

@@ -0,0 +1,69 @@
+package repositories
+
+import (
+	"GoMembership/internal/database"
+	"GoMembership/internal/models"
+	"GoMembership/pkg/errors"
+
+	"gorm.io/gorm"
+)
+
+// CarRepository interface defines the CRUD operations
+type CarRepositoryInterface interface {
+	Create(car *models.Car) (*models.Car, error)
+	GetByID(id uint) (*models.Car, error)
+	GetAll() ([]models.Car, error)
+	Update(car *models.Car) (*models.Car, error)
+	Delete(id uint) error
+}
+
+type CarRepository struct{}
+
+// Create a new car
+func (r *CarRepository) Create(car *models.Car) (*models.Car, error) {
+	if err := database.DB.Create(car).Error; err != nil {
+		return nil, err
+	}
+	return car, nil
+}
+
+// GetByID fetches a car by its ID
+func (r *CarRepository) GetByID(id uint) (*models.Car, error) {
+	var car models.Car
+	if err := database.DB.Where("id = ?", id).First(&car).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, errors.ErrNotFound
+		}
+		return nil, err
+	}
+	return &car, nil
+}
+
+// GetAll retrieves all cars
+func (r *CarRepository) GetAll() ([]models.Car, error) {
+	var cars []models.Car
+	if err := database.DB.Find(&cars).Error; err != nil {
+		return nil, err
+	}
+	return cars, nil
+}
+
+// Update an existing car
+func (r *CarRepository) Update(car *models.Car) (*models.Car, error) {
+	if err := database.DB.Save(car).Error; err != nil {
+		return nil, err
+	}
+	return car, nil
+}
+
+// Delete a car (soft delete)
+func (r *CarRepository) Delete(id uint) error {
+	result := database.DB.Delete(&models.Car{}, id)
+	if result.Error != nil {
+		return result.Error
+	}
+	if result.RowsAffected == 0 {
+		return errors.ErrNotFound
+	}
+	return nil
+}