0

在控制器类的 ASP.NET MVC 应用程序中，我有一个方法

        protected ActionResult VerifySanctions(string sanction)
        {

        bool hasSanctions = this.qualificationSanctionsService.HasSanctions(sanction);


        if (hasSanctions)
        {                               
              return this.RedirectToAction("Index", "Home");

        }
        return null;
        }

此方法包含来自不同控制器的不同其他操作的通用逻辑我决定为控制器创建一个基类，它将保留此方法并从中派生其他控制器。但是问题在于，当我从派生类操作中调用此方法时，我需要验证是否不为空，然后返回结果，例如

    public ActionResult RegistrationTracking(EncryptedId sourceId)
    {
        // some code
        var registration = learnerRegistrationService.Get(sourceId);

        var result = this.VerifySanctions(registration.Qualification);
        if (result != null)
        {
            return result;
        }
         // some code
        return this.View();

    }

在其他操作中，我需要验证结果是否再次为空

    public ActionResult Index(EncryptedId achievableVersionId)
    {
        var achievableVersion = achievableVersionService.Get(achievableVersionId);

        var verificationResult = this.VerifySanctions(achievableVersion);
        if (verificationResult != null)
        {
            return verificationResult;
        }          

         //some code
        return View();
    }

而且我想避免重复代码，有人可以帮助我举例或建议吗？我需要的是，如果没有通过方法 VerifySanction() 进行验证，则什么也不做，否则返回 Action 结果。

更新操作可能像这样

        public ActionResult ModifyUnits(EncryptedId sourceId)
    {
        var registration = learnerRegistrationService.Get(sourceId);

        Check.Require(registration != null);
        Check.Require(registration.Enrolment != null, "QualificationEnrolment is null - RegistrationAmendments / ModifyUnits");
        var result = this.VerifySanctions(registration.Qualification, LookupOrganisationAchievableStatus.Sanction3);
        if (result != null)
        {
            return result;
        }

        if (!this.organisationAchievableService.IsAccessibleAchievableVersion(registration.Qualification.Id, this.GetOrganisationId()))
        {
            return new PopupFormResult().Notify(MUI.PleaseSelectACentre);
        }

        SetEnrolmentViewData(registration.Enrolment);

        ViewData["registrationId"] = sourceId;
        var isComposite = registration.Enrolment.IsComposite();
        ViewData["isComposite"] = isComposite;

        this.SetSelectedUnitsViewData(registration, isComposite);

        this.SetSelectedQualificationUnitsViewData(isComposite, registration);

        return this.PartialView("ModifyUnits", new List<UnitDisplay>());
    }

提前致谢

4

3 回答 3

1

You could add a method in a default controller extended by all your controller to embed this logic. For example,

private ActionResult ViewWithSanction(string sanction, ActionResult default)
{
  bool hasSanctions = this.qualificationSanctionsService.HasSanctions(sanction);
  if (hasSanctions) {                               
    return this.RedirectToAction("Index", "Home");
  }
  return default;
}

And then your method could looks like

public ActionResult RegistrationTracking(EncryptedId sourceId)
{
    var registration = learnerRegistrationService.Get(sourceId);
    return ViewWithSanction (registration.Qualification, View());
}

public ActionResult Index(EncryptedId achievableVersionId)
{
    var achievableVersion = achievableVersionService.Get(achievableVersionId);
    return ViewWithSanction (achievableVersion, View());
}
于 2011-09-23T12:03:14.710 回答
1

传递将在为 falseFunc<ActionResult>时执行的hasSanctions

private ActionResult VerifySanctions(Sanction sanction, Func<ActionResult> whenNoSanctions)
{
    bool hasSanctions = this.qualificationSanctionsService.HasSanctions(sanction);

    if (hasSanctions)
    {
        return RedirectToAction("Index", "Home");
    }

    return whenNoSanctions();
}

并打电话

 return VerifySanctions(registration.Qualification, ()=> { //any code that returns ActionResult });

更新：

您可以将非空部分提取为单独的方法

private ActionResult WhenNoSanctions()
{
        if(!this.organisationAchievableService.IsAccessibleAchievableVersion(registration.Qualification.Id, this.GetOrganisationId()))
        {
            return new PopupFormResult().Notify(MUI.PleaseSelectACentre);
        }

        SetEnrolmentViewData(registration.Enrolment);

        ViewData["registrationId"] = sourceId;
        var isComposite = registration.Enrolment.IsComposite();
        ViewData["isComposite"] = isComposite;

        this.SetSelectedUnitsViewData(registration, isComposite);

        this.SetSelectedQualificationUnitsViewData(isComposite, registration);

        return this.PartialView("ModifyUnits", new List<UnitDisplay>());
}

并将 VerifySanctions 称为

 return VerifySanctions(registration.Qualification, WhenNoSanctions);
于 2011-09-23T12:11:24.467 回答
1

这应该有效：

 public ActionResult RegistrationTracking(EncryptedId sourceId)
    {
        var registration = learnerRegistrationService.Get(sourceId);                    
        return VerifySanctions(registration.Qualification, View());
    }

    private ActionResult VerifySanctions(Sanction sanction, ViewResult view)
    {
        bool hasSanctions = this.qualificationSanctionsService.HasSanctions(sanction);

        if (hasSanctions)
        {
            return RedirectToAction("Index", "Home");
        }

        return view;
    }
于 2011-09-23T11:51:19.037 回答