Yii2 user profile - yii2

Question

ok so one time i use yii2 with 1 table of user and 1 table of profile(admin,user) and was easy when i connected to the DB, but now i have 3 table of user and when i try to connect it to the DB i have problem...with the function findIdentity
public static function findIdentity($id)
{
$users = Administrador::find()->where(['id_admin'=>$id])->one();
if(!count($users)){
return null;
}
else{
//this->password=$users->passwd;
return new static($users);
}
//return isset(self::$users[$id]) ? new static(self::$users[$id]) : null;
}
as you can see in $users = Administrador::find() i have the name of the table "Administrador" but i want to search the id of the others table too, help please
btw my other 2 table are "contador" and "mecanico" which the id is "id_cont" for contador and "id_mec" for mecanico

Answer 1

Option 1
Add libraries to top of script file:
use someloc/model/Administrator;
use someloc/model/Contador;
use someloc/model/Mecanico
Then:
$users1 = Administrador::find()->where(['id_admin'=>$id])->one();
$users2 = Contador::find()->where(['id_admin'=>$id])->one();
$users3 = Mecanico::find()->where(['id_admin'=>$id])->one();
if (count($users1)) {
return $user1;
} elseif (count($users2)) {
return $user2;
} elseif (count($users3)) {
return $user3;
} else {
....
}
Option 2
Use createCommand in order to use custome SQL statement.
Note: the following query joins results of two tables together.
$sql = "
SELECT
userid
, field2
FROM
(
SELECT
t1.user_id AS userid
, anotherfield AS field2
FROM
table1 t1
UNION
SELECT
t1.user_id AS userid
, anotherfield AS field2
FROM
table2 t2
) x
WHERE
user_id = :user_id
";
$params = [':user_id' => $user_id];
$data = Yii::$app->db->createCommand($sql)->bindValues($params)->queryAll();