public function distance(Location $p1, Location $p2)
{
$R = 6371;
$d = acos( sin($this->toRad($p1->getLatitude()))*sin($this->toRad($p2->getLatitude())) +
cos($this->toRad($p1->getLatitude()))*cos($this->toRad($p2->getLatitude())) *
cos($this->toRad($p2->getLongitude())-$this->toRad($p1->getLongitude()))) * $R;
return $d;
}
public function saveLocationByUsername($username, Location $location=null)
{
try {
if ($location) {
$this->_dbTable->insert(array(
'username'=>$username,
'latitude'=>$location->getLatitude(),
'longitude'=>$location->getLongitude()));
} else {
$this->_dbTable->insert(array('username'=>$username));
}
} catch (\Zend\Db\Statement\Exception $e) { }
return $location;
}
