public function getMigrations(Updater $updater)
{
$logVisit = 'log_visit';
$logConversion = 'log_conversion';
$addColumns = array('location_region' => 'CHAR(2) NULL', 'location_city' => 'VARCHAR(255) NULL', 'location_latitude' => 'FLOAT(10, 6) NULL', 'location_longitude' => 'FLOAT(10, 6) NULL');
$dropColumn = 'location_continent';
return array($this->migration->db->dropColumn($logVisit, $dropColumn), $this->migration->db->dropColumn($logConversion, $dropColumn), $this->migration->db->addColumns($logVisit, $addColumns, 'location_country'), $this->migration->db->addColumns($logConversion, $addColumns, 'location_country'));
}