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_node_access_rebuild_batch_operation

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6 – 7 _node_access_rebuild_batch_operation(&$context)

Batch operation for node_access_rebuild_batch.

This is a multistep operation : we go through all nodes by packs of 20. The batch processing engine interrupts processing and sends progress feedback after 1 second execution time.

Related topics

Node access rights
The node access system determines who can do what to which nodes.

Code

drupal/modules/node/node.module, line 3449

<?php
function _node_access_rebuild_batch_operation(&$context) {
  if (empty($context['sandbox'])) {
    // Initiate multistep processing.
    $context['sandbox']['progress'] = 0;
    $context['sandbox']['current_node'] = 0;
    $context['sandbox']['max'] = db_query('SELECT COUNT(DISTINCT nid) FROM {node}')->fetchField();
  }

  // Process the next 20 nodes.
  $limit = 20;
  $nids = db_query_range("SELECT nid FROM {node} WHERE nid > :nid ORDER BY nid ASC", 0, $limit, array(':nid' => $context['sandbox']['current_node']))->fetchCol();
  $nodes = node_load_multiple($nids, array(), TRUE);
  foreach ($nodes as $nid => $node) {
    // To preserve database integrity, only acquire grants if the node
    // loads successfully.
    if (!empty($node)) {
      node_access_acquire_grants($node);
    }
    $context['sandbox']['progress']++;
    $context['sandbox']['current_node'] = $nid;
  }

  // Multistep processing : report progress.
  if ($context['sandbox']['progress'] != $context['sandbox']['max']) {
    $context['finished'] = $context['sandbox']['progress'] / $context['sandbox']['max'];
  }
}
?>