private static IEnumerable <Conflict> NextClassesAtDifferentAddress(IEnumerable <FullClassRecord> allClasses)
{
var conflicts = new List <Conflict>();
var message = ConflictCompilation.ConflictDescription(ConflictCriteria.NextClassesAtDifferentAddress);
var classes = from c in allClasses
orderby c.Group.Name, c.ClassTime.Day, c.ClassTime.Number
select c;
var prevClass = classes.ElementAt(0);
for (int i = 1; i < allClasses.Count(); ++i)
{
var currClass = classes.ElementAt(i);
if (currClass.ClassTime != null && prevClass.ClassTime != null &&
currClass.Classroom != null && prevClass.Classroom != null &&
prevClass.ClassTime.Day == currClass.ClassTime.Day &&
currClass.ClassTime.Number - prevClass.ClassTime.Number <= 1 &&
prevClass.Classroom.Address != currClass.Classroom.Address)
{
var conflictingClasses = new List <FullClassRecord> {
prevClass, currClass
};
conflicts.Add(new Conflict(message, ConflictType.Warning, conflictingClasses));
}
prevClass = currClass;
}
return(conflicts);
}
private static IEnumerable <Conflict> CardsWithBlankFields(IEnumerable <FullClassRecord> allClasses)
{
var message = ConflictCompilation.ConflictDescription(ConflictCriteria.CardsWithBlankFields);
return(from c in allClasses
where c.Lecturer == null || c.Classroom == null || c.Subject == null
select new Conflict(message, ConflictType.Warning, c));
}
private static IEnumerable <Conflict> LecterersOnDifferentClasses(IEnumerable <FullClassRecord> allClasses)
{
var message = ConflictCompilation.ConflictDescription(ConflictCriteria.LecterersOnDifferentClasses);
return(from c in allClasses
where c.Lecturer != null && c.ClassTime != null
group c by new Tuple <Lecturer, ClassTime>(c.Lecturer, c.ClassTime) into g
where g.Select(c => c.Subject).Distinct().Count() > 1
select new Conflict(message, ConflictType.Conflict, g));
}
private static IEnumerable <Conflict> GroupsInDifferentClassrooms(IEnumerable <FullClassRecord> allClasses)
{
var message = ConflictCompilation.ConflictDescription(ConflictCriteria.GroupsInDifferentClassrooms);
return(from c in allClasses
where c.Group != null && c.ClassTime != null
group c by new Tuple <Group, ClassTime>(c.Group, c.ClassTime) into g
where g.Count() > 1
select new Conflict(message, ConflictType.Conflict, g));
}
private static IEnumerable <Conflict> GreaterThanFourClassesPerDay(IEnumerable <FullClassRecord> allClasses)
{
var message = ConflictCompilation.ConflictDescription(ConflictCriteria.GreaterThanFourClassesPerDay);
return(from c in allClasses
where c.Group != null && c.ClassTime != null
group c by new Tuple <Group, Weekdays>(c.Group, c.ClassTime.Day) into g
where g.Count() > 4
select new Conflict(message, ConflictType.Warning, g));
}