init

internal/repository/product_variant_repository.go

@@ -0,0 +1,78 @@
+package repository
+
+import (
+	"context"
+
+	"apskel-pos-be/internal/entities"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type ProductVariantRepository interface {
+	Create(ctx context.Context, variant *entities.ProductVariant) error
+	GetByID(ctx context.Context, id uuid.UUID) (*entities.ProductVariant, error)
+	GetByProductID(ctx context.Context, productID uuid.UUID) ([]*entities.ProductVariant, error)
+	GetByProductAndName(ctx context.Context, productID uuid.UUID, name string) (*entities.ProductVariant, error)
+	Update(ctx context.Context, variant *entities.ProductVariant) error
+	Delete(ctx context.Context, id uuid.UUID) error
+	ExistsByName(ctx context.Context, productID uuid.UUID, name string, excludeID *uuid.UUID) (bool, error)
+}
+
+type ProductVariantRepositoryImpl struct {
+	db *gorm.DB
+}
+
+func NewProductVariantRepositoryImpl(db *gorm.DB) *ProductVariantRepositoryImpl {
+	return &ProductVariantRepositoryImpl{
+		db: db,
+	}
+}
+
+func (r *ProductVariantRepositoryImpl) Create(ctx context.Context, variant *entities.ProductVariant) error {
+	return r.db.WithContext(ctx).Create(variant).Error
+}
+
+func (r *ProductVariantRepositoryImpl) GetByID(ctx context.Context, id uuid.UUID) (*entities.ProductVariant, error) {
+	var variant entities.ProductVariant
+	err := r.db.WithContext(ctx).First(&variant, "id = ?", id).Error
+	if err != nil {
+		return nil, err
+	}
+	return &variant, nil
+}
+
+func (r *ProductVariantRepositoryImpl) GetByProductID(ctx context.Context, productID uuid.UUID) ([]*entities.ProductVariant, error) {
+	var variants []*entities.ProductVariant
+	err := r.db.WithContext(ctx).Where("product_id = ?", productID).Find(&variants).Error
+	return variants, err
+}
+
+func (r *ProductVariantRepositoryImpl) GetByProductAndName(ctx context.Context, productID uuid.UUID, name string) (*entities.ProductVariant, error) {
+	var variant entities.ProductVariant
+	err := r.db.WithContext(ctx).Where("product_id = ? AND name = ?", productID, name).First(&variant).Error
+	if err != nil {
+		return nil, err
+	}
+	return &variant, nil
+}
+
+func (r *ProductVariantRepositoryImpl) Update(ctx context.Context, variant *entities.ProductVariant) error {
+	return r.db.WithContext(ctx).Save(variant).Error
+}
+
+func (r *ProductVariantRepositoryImpl) Delete(ctx context.Context, id uuid.UUID) error {
+	return r.db.WithContext(ctx).Delete(&entities.ProductVariant{}, "id = ?", id).Error
+}
+
+func (r *ProductVariantRepositoryImpl) ExistsByName(ctx context.Context, productID uuid.UUID, name string, excludeID *uuid.UUID) (bool, error) {
+	var count int64
+	query := r.db.WithContext(ctx).Model(&entities.ProductVariant{}).Where("product_id = ? AND name = ?", productID, name)
+
+	if excludeID != nil {
+		query = query.Where("id != ?", *excludeID)
+	}
+
+	err := query.Count(&count).Error
+	return count > 0, err
+}