I am done with searching the web and the core for possible solutions. I've found multiple solutions but only one worked (not completely).
Now I am about to query them by a raw statement. However I would appreciate it if someone could point me to the right direction.
So the task should be pretty simple. I need all the selections of every option of a bundle product.
This is my current solution:
$selectionCollection = $bundleType->getSelectionsCollection($bundleType->getOptionsIds($_product), $_product) ->setOptionIdsFilter($option->getId()); $connection = $resource->getConnection(); $selections = $connection->fetchAll($selectionCollection->getSelect()->__toString());