How to sort by related table field when sending Yii2 REST GET request - rest

Question

I want to expand this question.
Basically I have users endpoint. But I am also returning data from the related profiles table. I am not expanding with profiles, I always want to return it. So I have fields method like this:
public function fields()
{
$fields = parent::fields();
$fields[] = 'profile';
return $fields;
}
When I do GET request and demand sorting by profile.created_at field and user.status, it does not sort by profile.created_at.
GET v1/users?sort=-profile.created_at,status
Can this be achieved somehow ?
This is my current code:
/** #var $query ActiveQuery */
$query = User::find();
// get data from profile table
$query->innerJoinWith('profile');
// add conditions that should always apply here
$dataProvider = new ActiveDataProvider([
'query' => $query,
'sort' => ['defaultOrder' => ['id' => SORT_DESC]],
'pagination' => [
'pageSize' => 10,
],
]);
return $dataProvider;

Answer 1

You have overridden 'sort' parameter of ActiveDataProvider. To keep default behaviour of Sort object and change defaultOrder property, create an instance, such as:
$sort = new \yii\data\Sort([
'attributes' => [
'profile.created_at',
],
'defaultOrder' => ['id' => SORT_DESC],
]);
// add conditions that should always apply here
$dataProvider = new ActiveDataProvider([
'query' => $query,
'sort' => $sort,
'pagination' => [
'pageSize' => 10,
],
]);