function nodequeue_subqueue_shuffle in Nodequeue 7.3

Same name and namespace in other branches

1. 5.2 nodequeue.module \nodequeue_subqueue_shuffle()
2. 6.2 nodequeue.module \nodequeue_subqueue_shuffle()
3. 7.2 nodequeue.module \nodequeue_subqueue_shuffle()

Shuffle a queue.

Parameters

$subqueue: The subqueue to shuffle. May be a sqid or the loaded object.

File

./nodequeue.module, line 1377

Maintains queues of nodes in arbitrary order.

Code

function nodequeue_subqueue_shuffle($subqueue) {

  // Load the queue
  if (!is_object($subqueue)) {
    $subqueue = nodequeue_load_subqueue($subqueue);
  }
  if (empty($subqueue)) {
    return;
  }
  $count = $subqueue->count;

  // Swap each item with another randomly picked one.
  foreach (range(1, $count) as $i) {
    nodequeue_queue_swap($subqueue, $i, rand(1, $count));
  }
}