public function get_prop_choice_clicks($propId, $cityId)
{
$table = Model_Stats_PropClick::getTableName($cityId);
$sql = "select SUM(bid_cnum) AS bidClicks from {$table} where prop_id = ?";
$value = array($propId);
$da = Model_Stats_PropClick::data_access($cityId);
$result = $da->native_sql($sql, $value);
return $result;
}
