public AttributeGroupViewModel GetAttributeGroupById(int attributeGroupId)
        {
            AttributeGroup          attributeGroup          = _ctx.AttributeGroups.FirstOrDefault(f => f.Id == attributeGroupId);
            AttributeGroupViewModel attributeGroupViewModel = AttributeGroupFactory.AttributeGroupToViewModel(attributeGroup);

            return(attributeGroupViewModel);
        }
        public List <AttributeGroupViewModel> GetAllAttributeGroups()
        {
            List <AttributeGroup>          attributeGroups         = _ctx.AttributeGroups.ToList();
            List <AttributeGroupViewModel> attributeGroupViewModel = new List <AttributeGroupViewModel>();

            attributeGroups.ForEach(attributeGroup =>
            {
                attributeGroupViewModel.Add(AttributeGroupFactory.AttributeGroupToViewModel(attributeGroup));
            });

            return(attributeGroupViewModel);
        }