public function isValidChild(ChildrenCollectionInterface $collection, PersonaInterface $child)
{
$errors = [];
if ($collection->getParent()->getGender() === self::GENDER_UNDEFINED) {
$errors[] = "Can't add child for genderless persona";
}
if ($collection->contains($child)) {
$errors[] = 'Persona already has this child';
}
if ($collection->getParent() === $child) {
$errors[] = "Child can't be parent for self";
}
return $this->getResult($errors);
}
public function addChild(PersonaInterface $child)
{
$this->children->add($child);
// service parents
switch ($this->gender) {
case self::GENDER_MALE:
if (empty($child->getFather())) {
$child->setFather($this);
}
break;
case self::GENDER_FEMALE:
if (empty($child->getMother())) {
$child->setMother($this);
}
break;
}
}