/// <summary>
/// Performs the business logic for adding the Sibling relationship between the person and
/// the sibling.
/// </summary>
public static void AddSibling(PeopleCollection family, Person person, Person sibling)
{
// Handle siblings
if (person.Siblings.Count > 0)
{
// Make the siblings siblings to each other.
foreach (Person existingSibling in person.Siblings)
{
family.AddSibling(existingSibling, sibling);
}
}
if (person.Parents != null)
{
switch (person.Parents.Count)
{
// No parents
case 0:
family.AddSibling(person, sibling);
break;
// Single parent
case 1:
family.AddSibling(person, sibling);
family.AddChild(person.Parents[0], sibling, ParentChildModifier.Natural);
break;
// 2 parents
case 2:
// Add the sibling as a child of the same parents
foreach (Person parent in person.Parents)
{
family.AddChild(parent, sibling, ParentChildModifier.Natural);
}
family.AddSibling(person, sibling);
break;
default:
family.AddSibling(person, sibling);
break;
}
}
}
/// <summary>
/// Performs the business logic for adding the Parent relationship between the person and the parents.
/// </summary>
public static void AddParent(PeopleCollection family, Person person, ParentSet parentSet)
{
// First add child to parents.
family.AddChild(parentSet.FirstParent, person, ParentChildModifier.Natural);
family.AddChild(parentSet.SecondParent, person, ParentChildModifier.Natural);
// Next update the siblings. Get the list of full siblings for the person. A full sibling
// is a sibling that has both parents in common.
List <Person> siblings = GetChildren(parentSet);
foreach (Person sibling in siblings)
{
if (sibling != person)
{
family.AddSibling(person, sibling);
}
}
}
/// <summary>
/// Performs the business logic for adding the Child relationship between the person and the child.
/// </summary>
public static void AddChild(PeopleCollection family, Person person, Person child)
{
// Add the new child as a sibling to any existing children
foreach (Person existingSibling in person.Children)
{
family.AddSibling(existingSibling, child);
}
switch (person.Spouses.Count)
{
// Single parent, add the child to the person
case 0:
family.AddChild(person, child, ParentChildModifier.Natural);
break;
// Has existing spouse, add the child to the person's spouse as well.
case 1:
family.AddChild(person, child, ParentChildModifier.Natural);
family.AddChild(person.Spouses[0], child, ParentChildModifier.Natural);
break;
}
}