/// <summary>
/// Create a new course and add it to the current user's course list
/// </summary>
/// <returns></returns>
public Course CreateCourse(ref ObservableCollection<CourseMeta> crsMeta)
{
try
{
//Create the new Course
Course newCourse = new Course();
newCourse.Name = "New Course";
newCourse.ID = Guid.NewGuid();
//Add the new course to the current user's course list
CoursePermission newCoursePermissions = new CoursePermission();
newCoursePermissions.Course = newCourse;
newCoursePermissions.CourseID = newCourse.ID;
newCoursePermissions.LbcUser = Session.CurUser;
newCoursePermissions.UserID = Session.CurUser.ID;
newCoursePermissions.Permission = "Lead Writer";
newCourse.CoursePermissions.Add(newCoursePermissions);
//Create the course meta data
CourseMeta newCourseMeta = new CourseMeta();
newCourseMeta.CourseID = newCourse.ID;
newCourseMeta.Permission = "Lead Writer";
crsMeta.Add(newCourseMeta);
//Add the course to the database context and the user's course list that's loaded into the program
Session.DbContext.Add(newCourse);
return newCourse;
}
catch
{
return null;
}
}
/// <summary>
/// Load the user's curriculum
/// </summary>
/// <param name="user">The user to load curriculum for</param>
/// <returns></returns>
public ObservableCollection<Course> LoadUserCurriculum(LbcUser user, ref ObservableCollection<CoursePermission> coursePermissions, ref ObservableCollection<CourseMeta> metaData)
{
ObservableCollection<Course> userCourses = new ObservableCollection<Course>();
List<CoursePermission> userPermissions;
metaData = new ObservableCollection<CourseMeta>();
coursePermissions = new ObservableCollection<CoursePermission>();
CourseMeta tmpMeta = new CourseMeta();
try
{
userPermissions = Session.DbContext.CoursePermissions.Where(cp => cp.LbcUser == user).ToList();
foreach (CoursePermission cp in userPermissions)
{
tmpMeta = new CourseMeta();
userCourses.Add(cp.Course);
coursePermissions.Add(cp);
tmpMeta.CourseID = cp.CourseID;
tmpMeta.Permission = cp.Permission;
metaData.Add(tmpMeta);
}
return userCourses;
}
catch
{
//An error occured while loading the curriculum
return null;
}
finally
{
//Clean up local variables
userCourses = null;
userPermissions = null;
}
}
/// <summary>
/// Set CurCourseMeta for the object that matches CurCourse
/// </summary>
/// <param name="curCourse"></param>
public void UpdateCourseMeta(ObservableCollection<CourseMeta> metaData)
{
CurCourseMeta = metaData.Where(c => c.CourseID == _CurCourse.ID).First();
}