コード例 #1
0
        public async Task <IActionResult> ScanSystem()
        {
            var studentClassGrades = await _schoolService.GetStudentClassGradesAysnc();

            var teachers = await _schoolService.GetTeachersAsync();

            var parents = await _schoolService.GetParentsAsync();

            var problemStudents             = new List <Student>();
            var parentsWithProblemStudents  = new List <Parent>();
            var teachersWithProblemStudents = new List <Teacher>();

            foreach (var studentClassGrade in studentClassGrades)
            {
                if (studentClassGrade.Grade <= 50)
                {
                    problemStudents.Add(studentClassGrade.Student);
                    if (!teachersWithProblemStudents.Exists(t => t.ClassId == studentClassGrade.ClassId))
                    {
                        teachersWithProblemStudents.Add(teachers.Find(t => t.ClassId == studentClassGrade.ClassId));
                    }
                    if (!parentsWithProblemStudents.Exists(p => p.StudentId == studentClassGrade.StudentId))
                    {
                        parentsWithProblemStudents.Add(parents.Find(p => p.StudentId == studentClassGrade.StudentId));
                    }
                }
                else if (studentClassGrade.Grade <= 70)
                {
                    if (studentClassGrade.Student.Profile.FavoriteSubject == studentClassGrade.Class.Subject)
                    {
                        problemStudents.Add(studentClassGrade.Student);
                        if (!teachersWithProblemStudents.Exists(t => t.ClassId == studentClassGrade.ClassId))
                        {
                            teachersWithProblemStudents.Add(teachers.Find(t => t.ClassId == studentClassGrade.ClassId));
                        }
                        if (!parentsWithProblemStudents.Exists(p => p.StudentId == studentClassGrade.StudentId))
                        {
                            parentsWithProblemStudents.Add(parents.Find(p => p.StudentId == studentClassGrade.StudentId));
                        }
                    }
                }
            }

            var recipients = new List <IEmail>();

            recipients.AddRange(parentsWithProblemStudents);
            recipients.AddRange(teachersWithProblemStudents);

            await _emailService.EmailAlertAsync(recipients);

            return(View(nameof(Index)));
        }