function _node_access_rebuild_batch_operation

Implements callback_batch_operation().

Performs batch operation for node_access_rebuild().

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.

Parameters

array $context: An array of contextual key/value information for rebuild batch process.

Related topics

File

modules/node/node.module, line 3688

Code

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(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'];
    }
}