/// <summary>
        /// Gets a product specification attribute mapping
        /// </summary>
        /// <param name="productSpecificationAttributeId">Product specification attribute mapping identifier</param>
        /// <returns>Product specification attribute mapping</returns>
        public virtual ProductSpecificationAttribute GetProductSpecificationAttributeById(int productSpecificationAttributeId)
        {
            if (productSpecificationAttributeId == 0)
            {
                return(null);
            }

            return(_productSpecificationAttributeRepository.GetById(productSpecificationAttributeId));
        }
        /// <summary>
        /// Gets a specification attribute option
        /// </summary>
        /// <param name="specificationAttributeOptionId">The specification attribute option identifier</param>
        /// <returns>Specification attribute option</returns>
        public virtual SpecificationAttributeOption GetSpecificationAttributeOptionById(int specificationAttributeOptionId)
        {
            if (specificationAttributeOptionId == 0)
            {
                return(null);
            }

            return(_specificationAttributeOptionRepository.GetById(specificationAttributeOptionId));
        }