public async Task <CourseRM> AddStudentToCourseAsync(Guid courseId, Guid studentId)
{
var course = await _courseRepository.GetByIdAsync(courseId);
var student = await _studentRepository.GetByIdAsync(studentId);
course.AddStudent(student);
await _courseRepository.AddStudentToCourseAsync(courseId, studentId);
await _context.SaveChangesWithNoticationsAsync(course);
return(MapCourseRM(course));
}
public async Task <SignUpToCourseCommandResponse> Handle(SignUpToCourseCommand command)
{
var student = new Student(command.Name, command.Email, command.DateOfBirth);
var studentValidator = new StudentValidator();
var validationResult = studentValidator.Validate(student);
var response = new SignUpToCourseCommandResponse();
if (validationResult.IsValid)
{
var course = await _repository.GetByIdAsync(command.CourseId);
if (course == null)
{
response.Message = "Course not found.";
response.AddError($"Course Id '{command.CourseId}' not found.");
}
else if (course.IsFull)
{
response.Message = "Course max students number reached.";
response.AddError("Sorry, We this course is closed for new students.");
}
else
{
course.NumberOfStudents += 1;
var success = await _repository.AddStudentToCourseAsync(course, student);
if (success)
{
response.Message = "OK";
response.Course = course;
response.Student = student;
}
if (!success)
{
response.Message = "Oops, Something went wrong.";
response.AddError("Sorry, We had a problem enrolling you to this course, try later.");
}
}
}
else
{
response.Message = "Oops, Something went wrong.";
response.AddErrorsRange(validationResult.Errors.Select(v => v.ErrorMessage));
}
return(response);
}
