Sort helper for field_test_field_storage_query().
Sorts by entity type and entity id.
function _field_test_field_storage_query_sort_helper($a, $b) {
if ($a->type == $b->type) {
if ($a->entity_id == $b->entity_id) {
return 0;
}
else {
return $a->entity_id < $b->entity_id ? -1 : 1;
}
}
else {
return $a->type < $b->type ? -1 : 1;
}
}