Check if async relation is null without fetching relation

[lrdevries]

Hello,

I've got a page where i want to show all elements without an relation. To determine this i have the following code:

lonelyModels: function(){
    var array = this.get("allModels");
    var self = this;
    return array.filter(function(item,index,enuma){
        return !item.get("relationToB");
    });
}.property("[email protected]"),
allModels: function(){
  return this.store.find("modelA");
}.property();

But now it also makes requests to the server for the model behind relationToB. But i only need the object without an relation set, so i also do not need the async relations. When you've got 1000 records in the database, its a real bummer for efficiency. How can i get all modelA objects without a relation to modelB, without loading the relations that does exists. (and if one in the list gets a relation it should also be removed from the list)

[intuitivepixel]

This doesn't look like a bug, either like a programming problem for which you could find surely a better answer on stackoverflow.com then here :)

[lrdevries]

I think it is a bug, because async relations are always loaded. But indeed
i formulated it to much as a question
Op 20 sep. 2014 00:36 schreef "intuitivepixel" [email protected]:

This doesn't look like a bug, either like a programming problem for which
you could find surely a better answer on stackoverflow.com then here :)

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#2286 (comment).

[wecc]

Relevant: #2431

[igorT]

Yes, this is a real use case that we want to support, emberjs/rfcs#57 is aiming to address it. Closing this as a duplicate of #2271