public Variable Map(CreateOrEditViewModel createOrEdit)
        {
            Variable variable = new Variable();

              if (createOrEdit.Id != null)
            variable = this.handler.Storage.GetRepository<IVariableRepository>().WithKey((int)createOrEdit.Id);

              else variable.ConfigurationId = createOrEdit.ConfigurationId;

              variable.Code = createOrEdit.Code;
              variable.Name = createOrEdit.Name;
              variable.Value = createOrEdit.Value;
              variable.Position = createOrEdit.Position;
              return variable;
        }
        public IActionResult CreateOrEdit(CreateOrEditViewModel createOrEdit)
        {
            if (this.ModelState.IsValid)
              {
            Variable variable = new CreateOrEditViewModelMapper(this).Map(createOrEdit);

            if (createOrEdit.Id == null)
              this.Storage.GetRepository<IVariableRepository>().Create(variable);

            else this.Storage.GetRepository<IVariableRepository>().Edit(variable);

            this.Storage.Save();
            return this.RedirectToAction("Index", "Configurations");
              }

              return this.CreateRedirectToSelfResult();
        }