private async Task CreateCertificate(int courseId, string trainerId, StudentCourseGradeFormModel model)
{
if (this.certificateService.IsGradeEligibleForCertificate(model.GradeBg))
{
var success = await this.certificateService.CreateAsync(trainerId, courseId, model.StudentId, model.GradeBg.Value);
if (success)
{
this.TempData.AddSuccessMessage(WebConstants.ExamAssessedMsg + Environment.NewLine + WebConstants.CertificateIssuedMsg);
}
}
}
public async Task <IActionResult> EvaluateExam(int id, StudentCourseGradeFormModel model)
{
var courseExists = this.courseService.Exists(id);
if (!courseExists)
{
this.TempData.AddErrorMessage(WebConstants.CourseNotFoundMsg);
return(this.RedirectToAction(nameof(Courses)));
}
if (!this.ModelState.IsValid)
{
this.TempData.AddErrorMessage(WebConstants.GradeInvalidMsg);
return(this.RedirectToTrainerStudentsForCourse(id));
}
var userId = this.userManager.GetUserId(this.User);
if (userId == null)
{
this.TempData.AddErrorMessage(WebConstants.InvalidUserMsg);
return(this.RedirectToAction(nameof(Courses)));
}
var isTrainer = await this.trainerService.IsTrainerForCourseAsync(userId, id);
if (!isTrainer)
{
this.TempData.AddErrorMessage(WebConstants.NotTrainerForCourseMsg);
return(this.RedirectToAction(nameof(Courses)));
}
var courseHasEnded = await this.trainerService.CourseHasEndedAsync(id);
if (!courseHasEnded)
{
this.TempData.AddErrorMessage(WebConstants.CourseHasNotEndedMsg);
return(this.RedirectToTrainerStudentsForCourse(id));
}
var isStudentInCourse = await this.courseService.IsUserEnrolledInCourseAsync(model.CourseId, model.StudentId);
if (!isStudentInCourse)
{
this.TempData.AddErrorMessage(WebConstants.StudentNotEnrolledInCourseMsg);
return(this.RedirectToTrainerStudentsForCourse(id));
}
var gradeValue = model.GradeBg.Value;
var success = await this.examService.EvaluateAsync(userId, id, model.StudentId, gradeValue);
if (!success)
{
this.TempData.AddErrorMessage(WebConstants.ExamAssessmentErrorMsg);
return(this.RedirectToTrainerStudentsForCourse(id));
}
this.TempData.AddSuccessMessage(WebConstants.ExamAssessedMsg);
await this.CreateCertificate(id, userId, model);
return(this.RedirectToTrainerStudentsForCourse(id));
}
