|
public scalar ( string $attribute, |
||
| $attribute | string | name of the attribute to select |
| $db | the database connection used to execute the query. If this parameter is not given, the `db` application component will be used. | |
| return | string | the value of the specified attribute in the first record of the query result. Null is returned if the query result is empty. |
public function scalar($attribute, $db = null)
{
$record = $this->one($db);
if ($record !== null) {
return $record->hasAttribute($attribute) ? $record->{$attribute} : null;
} else {
return null;
}
}