ContactCompanyCollection::isPrimaryItemExists

public function isPrimaryItemExists($type)
{
	/** @var ContactCompanyEntity $entity */
	foreach ($this->collection as $entity)
	{
		if ($entity->getField('IS_PRIMARY') === 'Y'
			&& (int)$entity->getField('ENTITY_TYPE_ID') === $type
		)
		{
			return true;
		}
	}

	return false;
}