/**
* @param ZoneInterface $zone
* @param CityInterface $city
*
* @return boolean City is contained in zone
*/
public function isCityContainedInZone(ZoneInterface $zone, CityInterface $city)
{
return $zone->getMembers()->filter(function (ZoneMemberInterface $zoneMember) {
return $zoneMember instanceof ZoneCityMemberInterface;
})->exists(function ($_, ZoneCityMemberInterface $zoneCityMember) use($city) {
return $city->equals($zoneCityMember->getCity());
});
}
