I want to render a node with certain properties set. For example, I want to load every node which ONLY has field_a and the other fields are empty.
If I use
$this->nodeStorage->loadByProperties(['type' => 'node_type', 'field_a' => $value]);
-> this will load every node which has field_a, but the other fields are not necessarily empty. I tried setting all the other fields to null, but it throws an InvalidQueryException. How can I change that query to IS NULL or which function can I use?