Question

I’m new to Drupal 7, but not to Drupal. I’m afraid, however, that the new database query system is a bit over my head.

I’m attempting to alter a view query using hook_query_TAG_alter(). In essence, I’m attempting to append an OR to the filter, saying “list nodes where the current user is either referenced in a particular_field OR is the author.”

I’m attempting to append this last condition (or is the author) do this by adding a db_or()->condition(…) to the query, but I keep getting a fatal error:

Call to undefined method SelectQuery::db_or() in /Volumes/…

It’s driving me batshit, because I don’t understand this system enough to know why this method is unavailable. Here is my implementation:

function sentinel_network_query_views_networks_alter(QueryAlterableInterface $query) {
  $query->db_or()->condition('node.uid', '***CURRENT_USER***', '=');
}

Answer 1

db_or() returns a database condition instance so you need to pass it to the query as a condition. Also, you need more than one condition in db_or() to actually perform an or!

$or = db_or()
  ->condition('node.uid', '***CURRENT_USER***', '=')
  ->condition('node.nid', 'SECOND CONDITION');
$query->condition($or);

Hope that helps