public List <AssignmentsPerCoursePerStudent> AllAssignmentsPerAllCoursePerAllStudent()
{
List <Student> students = GetAll();
List <StudentCourse> watches = new StudentCourseService().GetAll();
List <AssignmentsPerCourse> assignmentsPerCourses = new CourseService().AllAssignmentsPerAllCourses();
var querySql = from s in students
join w in watches
on s.StudentId equals w.StudentId
join aPc in assignmentsPerCourses
on w.CourseId equals aPc.Course.CourseId
select new
{
Students = s,
AssignmentsPerCourse = aPc
};
var groupedByStudents = querySql.GroupBy(s => s.Students);
List <AssignmentsPerCoursePerStudent> AllassignmentsPerAllStudentsPerAllCourses = new List <AssignmentsPerCoursePerStudent>();
foreach (var group in groupedByStudents)
{
AssignmentsPerCoursePerStudent assignmentsPerStudentsPerCourse = new AssignmentsPerCoursePerStudent();
assignmentsPerStudentsPerCourse.Student = group.Key;
//assignmentsPerStudentsPerCourse.Student = group.Key;
foreach (var item in group)
{
//assignmentsPerStudentsPerCourse.Students.Add(item.Student);
assignmentsPerStudentsPerCourse.AssignmentsPerCourses.Add(item.AssignmentsPerCourse);
}
AllassignmentsPerAllStudentsPerAllCourses.Add(assignmentsPerStudentsPerCourse);
}
return(AllassignmentsPerAllStudentsPerAllCourses);
}
public List <StudentsPerCourse> AllStudentsPerAllCourses()
{
List <Course> courses = GetAll();
List <Student> students = new StudentService().GetAll();
List <StudentCourse> watches = new StudentCourseService().GetAll();
var querySql = from s in students
join w in watches
on s.StudentId equals w.StudentId
join c in courses
on w.CourseId equals c.CourseId
select new
{
Student = s,
Course = c
};
List <StudentsPerCourse> allStudentsPerAllCourses = new List <StudentsPerCourse>();
var groupedByCourses = querySql.GroupBy(g => g.Course);
foreach (var group in groupedByCourses)
{
StudentsPerCourse studentsPerCourse = new StudentsPerCourse();
studentsPerCourse.Course = group.Key;
foreach (var item in group)
{
studentsPerCourse.Students.Add(item.Student);
}
allStudentsPerAllCourses.Add(studentsPerCourse);
}
return(allStudentsPerAllCourses);
}
public List <CoursesPerStudent> MultyCoursesPerSrudent()
{
List <Student> students = GetAll();
List <Course> courses = new CourseService().GetAll();
List <StudentCourse> watches = new StudentCourseService().GetAll();
var querySql = from s in students
join w in watches
on s.StudentId equals w.StudentId
join w1 in watches
on w.StudentId equals w1.StudentId
join c in courses
on w.CourseId equals c.CourseId
where w.CourseId != w1.CourseId
select new
{
Student = s,
Course = c
};
List <CoursesPerStudent> MultyCoursesPerSrudent = new List <CoursesPerStudent>();
var groupedByStudents = querySql.GroupBy(s => s.Student);
foreach (var group in groupedByStudents)
{
CoursesPerStudent coursesPerStudent = new CoursesPerStudent();
coursesPerStudent.Student = group.Key;
foreach (var item in group.Distinct())
{
//count++;
coursesPerStudent.Courses.Add(item.Course);
}
MultyCoursesPerSrudent.Add(coursesPerStudent);
}
return(MultyCoursesPerSrudent);
}