How to compose such a query in Yii2 via AR?

Question

MySQL

Good afternoon.
We need a tricky selection of two tables. There were no problems with the Join of the first table, but the second one needs a double condition:

...LEFT JOIN `reject` `r` ON ( `r`.`u_id` = `q`.`id` AND `r`.`processing_id` = `p`.`id` )...

The corresponding relay is described:

public function getReject()
{
  return $this->hasMany(Reject::className(), ['u_id' => 'id']);
}

Question: How to file such a tricky condition for a join?

Answer 1

public function getReject()
{
  return $this->hasMany(Reject::className(), ['u_id' => 'id'])->onCondition('reject.processing_id = p.id');
}

Something like this probably, only instead of p.id the name of the correct table or alias.