//Create link between User and Course
public bool createLink(string userID, int courseID, int roleID)
{
UsersInCourse uInC = new UsersInCourse()
{
userID = userID, courseID = courseID, roleID = roleID
};
db.UsersInCourse.Add(uInC);
return(Convert.ToBoolean(db.SaveChanges()));
}
/// <summary>
/// Enrol a student to a course
/// </summary>
/// <param name= "usersInCourses">The module.</param>
/// <exception cref="CustomException"></exception>
public void EnrollStudentInCourse(UsersInCourse usersInCourses)
{
try {
using (var db = new ELearningDatabaseEntities()) {
db.UsersInCourse.Add(usersInCourses);
db.SaveChanges();
}
}
catch (InvalidOperationException ex) {
throw new CustomException(ex.Message);
}
}
public HttpResponseMessage EnrollStudentInCourse(UsersInCourseDTO dto)
{
try {
UsersInCourse userInCourse = new UsersInCourse();
userInCourse.UserId = dto.UserId;
userInCourse.CourseId = dto.CourseId;
userInCourse.CourseUserstatus = dto.CourseUserstatus;
this._courseManagement.EnrollStudentInCourse(userInCourse);
return(Request.CreateResponse(HttpStatusCode.OK));
}
catch (Exception) {
// Log exception code goes here
return(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, "Error occured while executing method."));
}
}
/// <summary>
/// Unenroll a student from a course with specified id
/// </summary>
/// <param name="id">The identifier.</param>
/// <exception cref="CustomException">
/// </exception>
public void UnenrollCourse(int id)
{
try {
using (var db = new ELearningDatabaseEntities()) {
UsersInCourse c = db.UsersInCourse
.Where(x => x.CourseId == id)
.First();
db.UsersInCourse.Remove(c);
db.SaveChanges();
}
}
catch (ArgumentNullException ane) {
throw new CustomException(ane.Message);
}
catch (InvalidOperationException ex) {
throw new CustomException(ex.Message);
}
}
public void Initialize()
{
var mockDB = new MockDatabase();
#region Courses
var c1 = new Course
{
ID = 1,
name = "Forritun",
description = "Kennir grunnatriði í C++"
};
mockDB.Courses.Add(c1);
var c2 = new Course
{
ID = 2,
name = "Gagnaskipan",
description = "Framhald af Forritun"
};
mockDB.Courses.Add(c2);
var c3 = new Course
{
ID = 3,
name = "Vefforitun",
description = "Kennir grunnatriði í vefforitun"
};
mockDB.Courses.Add(c3);
var c4 = new Course
{
ID = 4,
name = "Stærðfræði",
description = "Tölvunarfræðimiðuð stærðfræði"
};
mockDB.Courses.Add(c4);
var c5 = new Course
{
ID = 5,
name = "Tölvuhögun",
description = "Hvernig tölvur haga sér"
};
mockDB.Courses.Add(c5);
#endregion
#region Assignments
var a1 = new Assignment
{
ID = 1,
name = "Sum of integers",
description = "Sum of 2,3,4",
startDate = new DateTime(2016, 05, 05, 00, 00, 00),
endDate = new DateTime(2016, 06, 06, 23, 59, 59),
solution = "9"
};
mockDB.Assignments.Add(a1);
var a2 = new Assignment
{
ID = 2,
name = "Strings together",
description = "'get' and 'hyper' together",
startDate = DateTime.Now,
endDate = new DateTime(2016, 06, 20, 23, 59, 59),
solution = "get hyper"
};
mockDB.Assignments.Add(a2);
var a3 = new Assignment
{
ID = 3,
name = "Find blah",
description = "Find the position of blah in array",
startDate = new DateTime(2016, 06, 06, 00, 00, 00),
endDate = new DateTime(2016, 06, 10, 23, 59, 59),
solution = "5"
};
mockDB.Assignments.Add(a3);
var a4 = new Assignment
{
ID = 4,
name = "Hello world!",
description = "Write C++ code that writes out 'Hello World'",
startDate = DateTime.Now,
endDate = new DateTime(2016, 06, 30, 23, 59, 59),
solution = "Hello World"
};
mockDB.Assignments.Add(a4);
var a5 = new Assignment
{
ID = 5,
name = "For loop",
description = "Make a For loop that counts",
startDate = new DateTime(2016, 06, 05, 00, 00, 00),
endDate = new DateTime(2016, 06, 20, 23, 59, 59),
solution = "4"
};
mockDB.Assignments.Add(a5);
var a6 = new Assignment
{
ID = 6,
name = "Get highest number",
description = "Get the highest number from an array",
startDate = new DateTime(2016, 06, 10, 00, 00, 00),
endDate = new DateTime(2016, 06, 20, 23, 59, 59),
solution = "8"
};
mockDB.Assignments.Add(a6);
#endregion
#region Users in course
var uc1 = new UsersInCourse
{
ID = 1,
userID = "1",
courseID = 2,
roleID = 2
};
mockDB.UsersInCourse.Add(uc1);
var uc2 = new UsersInCourse
{
ID = 2,
userID = "3",
courseID = 1,
roleID = 1
};
mockDB.UsersInCourse.Add(uc2);
var uc3 = new UsersInCourse
{
ID = 3,
userID = "2",
courseID = 2,
roleID = 1
};
mockDB.UsersInCourse.Add(uc3);
var uc4 = new UsersInCourse
{
ID = 4,
userID = "5",
courseID = 3,
roleID = 1
};
mockDB.UsersInCourse.Add(uc4);
var uc5 = new UsersInCourse
{
ID = 5,
userID = "4",
courseID = 1,
roleID = 1
};
mockDB.UsersInCourse.Add(uc5);
var uc6 = new UsersInCourse
{
ID = 6,
userID = "5",
courseID = 2,
roleID = 1
};
mockDB.UsersInCourse.Add(uc6);
var uc7 = new UsersInCourse
{
ID = 7,
userID = "2",
courseID = 2,
roleID = 1
};
mockDB.UsersInCourse.Add(uc7);
var uc8 = new UsersInCourse
{
ID = 8,
userID = "1",
courseID = 4,
roleID = 2
};
mockDB.UsersInCourse.Add(uc8);
#endregion
#region Assignments in courses
var ac1 = new AssignmentsInCourse
{
ID = 1,
assignmentID = 1,
courseID = 1
};
mockDB.AssingmentInCourse.Add(ac1);
var ac2 = new AssignmentsInCourse
{
ID = 2,
assignmentID = 2,
courseID = 2
};
mockDB.AssingmentInCourse.Add(ac2);
var ac3 = new AssignmentsInCourse
{
ID = 3,
assignmentID = 3,
courseID = 3
};
mockDB.AssingmentInCourse.Add(ac3);
var ac4 = new AssignmentsInCourse
{
ID = 4,
assignmentID = 4,
courseID = 4
};
mockDB.AssingmentInCourse.Add(ac4);
var ac5 = new AssignmentsInCourse
{
ID = 5,
assignmentID = 5,
courseID = 5
};
mockDB.AssingmentInCourse.Add(ac5);
var ac6 = new AssignmentsInCourse
{
ID = 6,
assignmentID = 6,
courseID = 1
};
mockDB.AssingmentInCourse.Add(ac6);
#endregion
_service = new CourseService(mockDB);
}
