//Method to Enroll a student is a course
public bool EnrollInCourse(int studentId, int courseId)
{
bool isEnrolled = false;
try
{
isEnrolled = new EnrollmentRepo().Insert(new Enrollment
{
StudentID = studentId,
CourseID = courseId
});
}
catch (Exception ex)
{
throw new PrometheusException(ex.Message);
}
return(isEnrolled);
}
/*public List<Student> SearchStudents(int CourseID)
* {
* StudentRepo studentrepo = new StudentRepo();
* List<Student> StudentList = studentrepo.GetStudents();
*
* //as we need to create list, we need collection that will only be generated from object
* var result = studentList.Where(
* item => item.HomeWorkID == CourseID
* ).Join(
* homeworkList,
* assignment => assignment.HomeWorkID,
* homework => homework.HomeworkID,
* (assignment, homework) => new AssignedHomework
* {
* AssignmentID = assignment.AssignmentID,
* TeacherID = assignment.TeacherID,
* CourseID = assignment.CourseID,
* HomeworkID = homework.HomeworkID,
* Description = homework.Description,
* LongDescription = homework.LongDescription
* }
* ).ToList();
* if (result.Any())
* {
* return result;
* }
* else
* {
* throw new Exception("No Homeworks Found!");*/
//Method for getting List of Student For a given course Id.
public List <Student> GetStudentsByCourseId(int id)
{
try
{
EnrollmentRepo enrollmentRepo = new EnrollmentRepo();
List <Enrollment> enrollments = enrollmentRepo.GetEnrollments().Where(item => item.CourseID == id).ToList();
StudentRepo studentRepo = new StudentRepo();
List <Student> students = studentRepo.GetStudents();
var result = enrollments.Join(
students,
enrollment => enrollment.StudentID,
student => student.StudentID,
(enrollment, student) => new Student
{
StudentID = enrollment.StudentID,
FName = student.FName,
LName = student.LName,
Address = student.Address,
DOB = student.DOB,
City = student.City,
UserID = student.UserID,
MobileNo = student.MobileNo
}
).ToList();
if (result.Any())
{
return(result);
}
else
{
throw new PrometheusException("No Enrolled Student Found!");
}
}
catch (Exception)
{
throw;
}
}
//Get List of Courses in which student is Enrolled
public List <EnrolledCourse> GetCoursesByStudentID(int id)
{
try
{
EnrollmentRepo enrollmentRepo = new EnrollmentRepo();
List <Enrollment> enrollments = enrollmentRepo.GetEnrollments();
CourseRepo courseRepo = new CourseRepo();
List <Course> courses = courseRepo.GetCourses();
var result = enrollments.Where(item => item.StudentID == id).Join(
courses,
enrollment => enrollment.CourseID,
course => course.CourseID,
(enrollment, course) => new EnrolledCourse
{
EnrollmentID = enrollment.EnrollmentID,
CourseID = enrollment.CourseID,
Name = course.Name,
StartDate = course.StartDate,
EndDate = course.EndDate
}
).ToList();
if (result.Any())
{
return(result);
}
else
{
throw new PrometheusException("No Enrollments Found!");
}
}
catch (Exception)
{
throw;
}
}
