ActionResult - Service
- by cem
I bored, writing same code for service and ui. Then i tried to write a converter for simple actions. This converter, converting Service Results to MVC result, seems like good solution for me but anyway i think this gonna opposite MVC pattern.
So here, I need help, what you think about algorithm - is this good or not?
Thanks
ServiceResult - Base:
public abstract class ServiceResult
{
public static NoPermissionResult Permission()
{
return new NoPermissionResult();
}
public static SuccessResult Success()
{
return new SuccessResult();
}
public static SuccessResult<T> Success<T>(T result)
{
return new SuccessResult<T>(result);
}
protected ServiceResult(ServiceResultType serviceResultType)
{
_resultType = serviceResultType;
}
private readonly ServiceResultType _resultType;
public ServiceResultType ResultType
{
get { return _resultType; }
}
}
public class SuccessResult<T> : ServiceResult
{
public SuccessResult(T result)
: base(ServiceResultType.Success)
{
_result = result;
}
private readonly T _result;
public T Result
{
get { return _result; }
}
}
public class SuccessResult : SuccessResult<object>
{
public SuccessResult() : this(null) { }
public SuccessResult(object o) : base(o) { }
}
Service - eg. ForumService:
public ServiceResult Delete(IVUser user, int id)
{
Forum forum = Repository.GetDelete(id);
if (!Permission.CanDelete(user, forum))
{
return ServiceResult.Permission();
}
Repository.Delete(forum);
return ServiceResult.Success();
}
Controller:
public class BaseController
{
public ActionResult GetResult(ServiceResult result)
{
switch (result.ResultType)
{
case ServiceResultType.Success:
var successResult = (SuccessResult)result;
return View(successResult.Result);
break;
case ServiceResultType.NoPermission:
return View("Error");
break;
default:
return View();
break;
}
}
}
[HandleError]
public class ForumsController : BaseController
{
[ValidateAntiForgeryToken]
[Transaction]
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Delete(int id)
{
ServiceResult result = ForumService.Delete(WebUser.Current, id);
/* Custom result */
if (result.ResultType == ServiceResultType.Success)
{
TempData[ControllerEnums.GlobalViewDataProperty.PageMessage.ToString()] = "The forum was successfully deleted.";
return this.RedirectToAction(ec => Index());
}
/* Custom result */
/* Execute Permission result etc. */
TempData[ControllerEnums.GlobalViewDataProperty.PageMessage.ToString()] = "A problem was encountered preventing the forum from being deleted. " +
"Another item likely depends on this forum.";
return GetResult(result);
}
}
