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node_revision_delete

Definition

node_revision_delete($nid, $revision)
node/node.module, line 1808

Description

Delete the revision with specified revision number. A "delete revision" nodeapi event is invoked when a revision is deleted.

Code

<?php
function node_revision_delete($nid, $revision) {
  if (user_access('administer nodes')) {
    $node = node_load($nid);
    if (node_access('delete', $node)) {
      // Don't delete the current revision
      if ($revision != $node->vid) {
        if ($node = node_load($nid, $revision)) {
          return drupal_get_form('node_revision_delete_confirm', $node);
        }
        else {
          drupal_set_message(t('Deletion failed. You tried to delete a non-existing revision.'));
        }
      }
      else {
        drupal_set_message(t('Deletion failed. You tried to delete the current revision.'));
      }

      if (db_result(db_query('SELECT COUNT(vid) FROM {node_revisions} WHERE nid = %d', $nid)) > 1) {
        drupal_goto('node/'. $nid .'/revisions');
      }
      else {
        drupal_goto('node/'. $nid);
      }
    }
  }

  drupal_access_denied();
}
?>