internal static void ItemDuplicate(TeachingAide teachingAide)
{
if (teachingAide.Items_TItems != null)
{
if (teachingAide.Items_TItems.Count > 1)
{
throw new ArgumentException("Cannot add more than one Item to teachingAide at a time");
}
else
{
if (teachingAide.Items_TItems.Count != teachingAide.Items_TItems.Distinct().Count())
{
throw new ArgumentException("Game already contains specified Id, cannot add duplicate Id to TeachingAide");
}
}
}
}
internal static void ItemDuplicate(TeachingAide teachingAide, TeachingAide oldTeachingAide)
{
if (teachingAide.Items_TItems != null)
{
if (teachingAide.Items_TItems.Count > 1)
{
throw new ArgumentException("Cannot add more than one Item to teachingAide at a time");
}
if (teachingAide.Items_TItems.Count != teachingAide.Items_TItems.Distinct().Count())
{
throw new ArgumentException("Game already contains specified Id, cannot add duplicate Id to TeachingAide");
}
if (oldTeachingAide.Items_TItems.Any(b =>
{
var firstOrDefault = teachingAide.Items_TItems.FirstOrDefault();
return(firstOrDefault != null && b.Id == firstOrDefault.Id);
}))
{
throw new ArgumentException("A TeachingAide exists that already contains specified Id, cannot add duplicate Id to TeachingAide");
}
}
}
