selector grouped by parents

[Frank Vèssia]

Hi,
it's possible to get the result of a selector grouped by parents?
My structure is like this

restaurant 1
  - dish
  - dish
 ...
restaurant 2
  - dish
  - dish
  ...

In my search form there is a free text for searching a dish and a location. (location info is inside restaurant)
The result of the search should be the list of restaurants offering that particular dish, with the dishes below.

Right now I first search all restaurants in that location and after that all dishes (if they have) and display the result by restaurant.
This is not the best because I have to search all restaurant I have first.

I tried just to search for the dishes with parent in that location but in this way I can display only the dishes list and I need to display the restaurants list with the dishes below.

[LostKobrakai]

$dishes = $pages->find("…, sort=parent, sort=XX");

$parentID = null;

foreach($dishes as $dish) {

if($parentID === null || $dish->parent->id !== $parentID){

$parentID = $dish->parent->id;

// render restaurant headline

}

// render dish list item

}

[Frank Vèssia]

This doesn't group by parent, simply add the parent on top of each dish. I need to render all dishes of a restaurant one time
I need to search by dishes but render exactly like I have in the tree.

[LostKobrakai]

To add to my post above. You'd need to use "sort=parent", but if that's the case it should only render the restaurant name once and all it's dishes below it. 

If that's not what you want then I don't understand your request.

[Frank Vèssia]

yes, sort=parent was the missing point. thanks