private bool ContainsTimeConflict(CourseSection first, CourseSection second)
{
if (first.StartTime == second.StartTime || first.EndTime == second.EndTime)
{
return(true);
}
if (first.StartTime < second.StartTime)
{
if (first.EndTime > second.StartTime && first.EndTime < second.EndTime)
{
return(true);
}
if (first.EndTime > second.EndTime)
{
return(true);
}
}
else
{
if (second.EndTime > first.StartTime && second.EndTime < first.EndTime)
{
return(true);
}
if (second.EndTime > first.EndTime)
{
return(true);
}
}
return(false);
}
public RegistrationResults CanRegisterForCourseSection(CourseSection section)
{
if (section.EnrolledStudents.Where(s => s.Id == this.Id).Any())
{
return(RegistrationResults.AlreadyEnrolled);
}
if (Transcript.Where(t => (int)t.GradeEarned <= (int)GradeTypes.C && t.CourseSection.CatalogCourse.Id == section.CatalogCourse.Id).Any())
{
return(RegistrationResults.AlreadyCompleted);
}
foreach (var pre in section.CatalogCourse.Prerequisites)
{
if (!Transcript.Where(t => (int)t.GradeEarned <= (int)GradeTypes.C &&
t.CourseSection.CatalogCourse.Id == pre.Id).Any())
{
return(RegistrationResults.PrerequisiteNotMet);
}
}
foreach (var en in EnrolledCourses)
{
if ((en.MeetingDays & section.MeetingDays) != DaysOfWeek.None)
{
if ((en.StartTime <= section.EndTime && section.StartTime <= en.EndTime) ||
(section.StartTime <= en.EndTime && en.StartTime <= section.EndTime))
{
return(RegistrationResults.TimeConflict);
}
}
}
return(RegistrationResults.Success);
}
//public virtual ICollection<CourseSection> CompletedCourses { get; set; } = new List<CourseSection>();
public RegistrationResults CanRegisterForCourseSection(CourseSection section)
{
if (EnrolledCourses.Select(c => c.CatalogCourse).Contains(section.CatalogCourse) && Transcript.Where(c => c.Grade >= GradeTypes.C && c.Course.CatalogCourse == section.CatalogCourse).Count() == 0 && Transcript.Where(c => c.Grade < GradeTypes.C && c.Course.CatalogCourse == section.CatalogCourse).Count() == 0)
{
return(RegistrationResults.AlreadyEnrolled);
}
if (Transcript.Where(c => c.Course.CatalogCourse == section.CatalogCourse && c.Grade >= GradeTypes.C).Count() != 0)
{
return(RegistrationResults.AlreadyCompleted);
}
if (!section.CatalogCourse.Prerequisites.All(c => Transcript.Where(tC => tC.Grade >= GradeTypes.C).Select(cC => cC.Course.CatalogCourse).Contains(c)))
{
return(RegistrationResults.PrerequisitesNotMet);
}
if (EnrolledCourses.Where(c => (c.MeetingDays & section.MeetingDays) > 0 && ContainsTimeConflict(c, section)).Count() != 0)
{
return(RegistrationResults.TimeConflict);
}
return(RegistrationResults.Success);
}
