public HttpStatusCode CreateAttribute(CreateAttributeDto createAttributeDto) { AttributeGroup attributeGroup = _ctx.AttributeGroups .FirstOrDefault(f => f.Id == createAttributeDto.AttributeGroupId); var model = AttributeFactory.AttributeToDbo(createAttributeDto, attributeGroup); try { _ctx.Attributes.Add(model); _ctx.SaveChanges(); return(HttpStatusCode.OK); } catch (Exception ex) { return(HttpStatusCode.InternalServerError); } }