public IHttpActionResult PostTeach(TeachDTOIn teach)
{
TeachDTOOut teachCreated = teachsService.CreateTeach(teach);
return(Created("", teachCreated));
}
public TeachDTOOut CreateTeach(TeachDTOIn newTeach)
{
logger.Info("Get student department over student department service, create teach teaches service");
StudentDepartment studentDepartment = studentDepartmentsService.GetStudentDepartmentByID(newTeach.StudentDepartmentID);
logger.Info("Get teacher over teacher service, create teach teaches service");
Teacher teacher = teachersService.GetById(newTeach.TeacherID);
logger.Info("Get subject over subject service, create teach teaches service");
Subject subject = subjectsService.GetSubjectByID(newTeach.SubjectID);
logger.Info("Get teaches over teach service, create teach teaches service");
IEnumerable <Teach> teach = GetAllTeach();
//Check if subject is for students grade
logger.Info("Checking if subject is for the selected grade, create teaches, teaches service");
var isGradeOk = subject.Grades.Any(x => x.Id == studentDepartment.Departments.Grades.Id);
if (!isGradeOk)
{
throw new SubjectIsNotForThisGrade("Wrong subject");
}
//check if teacher is teaching this subject
logger.Info("Checking if teacher is teaching subject");
var result = teacher.Subjects.Contains(subject);
if (!result)
{
logger.Info("Throwing exception, wrong teacher subject pair");
throw new TeacherDontTeachThisSubjectException("Teacher - subject pair does not match");
}
//check if subject is alreaady added to student
logger.Info("Checking if subject is already added to student");
var subjectExists = teach.Any(x => x.Subject.Equals(subject) && x.StudentDepartments.Equals(studentDepartment));
if (subjectExists)
{
logger.Info("Throwing exception subject already added to student");
throw new SubjectExistsException($"Subject {subject.SubjectName} already added to student {studentDepartment.Students.UserName}");
}
//check if teacher teach to this department, and finds who teach
logger.Info("Checking if theacher is teach in department");
var isDepartmentOK = teach.Any(x => x.Subject.Equals(subject) && x.Teachers.Equals(teacher) &&
x.StudentDepartments.Departments.Id.Equals(studentDepartment.Departments.Id));
var isSubjectInDepartment = teach.Any(x => x.Subject.Equals(subject) && x.StudentDepartments.Departments.Id.Equals(studentDepartment.Departments.Id));
var whoTeach = teach.Where(x => x.Subject.Equals(subject) && x.StudentDepartments.Equals(studentDepartment)).Select(x => x.Teachers.UserName);
if (!isDepartmentOK)
{
if (isSubjectInDepartment)
{
logger.Info("Throwing exception teacher doesn't teach in department");
throw new TeacherDontTeachThisDepartment($"Teacher {teacher.UserName} doesn't teach to department {studentDepartment.Departments.DepartmentName}, {whoTeach} does.");
}
}
logger.Info("Preparing teach for save in db");
Teach teachIn = new Teach()
{
StudentDepartments = studentDepartment,
Teachers = teacher,
Subject = subject
};
logger.Info("Access to teaches repository for insert new teach");
db.TeachesRepository.Insert(teachIn);
logger.Info("db save new teach");
db.Save();
logger.Info("Converting to dto for output");
TeachDTOOut teachDTOOut = new TeachDTOOut()
{
Id = teachIn.Id,
Student = Utilities.ConverterDTO.SimpleDTOConverter <StudentDTO>(teachIn.StudentDepartments.Students),
Department = Utilities.ConverterDTO.SimpleDTOConverter <DepartmentDTOStudent>(teachIn.StudentDepartments.Departments),
TeacherSubject = studentDepartment.Teaches.Select(x => new TeacherSubjectDTO()
{
Teacher = Utilities.ConverterDTO.SimpleDTOConverter <TeacherDTO>(x.Teachers),
Subject = Utilities.ConverterDTO.SimpleDTOConverter <SubjectDTO>(x.Subject)
})
};
return(teachDTOOut);
}
