function node_requirements

Implements hook_requirements().

File

core/modules/node/node.module, line 3577

The core module that allows content to be submitted to the site.

Code

function node_requirements($phase) {
  $requirements = array();
  if ($phase === 'runtime') {
    $needs_rebuild = node_access_needs_rebuild();
    $grant_count = db_query('SELECT COUNT(*) FROM {node_access}')->fetchField();

    // Show an error message if permissions need to be rebuilt. Otherwise
    // show a permission count if there are either 0, or 2 or more, rows in the
    // {node_access} table, or if there are modules that implement
    // hook_node_grants().
    if ($needs_rebuild) {
      $value = t('Access permissions need to be rebuilt.');
    }
    elseif ($grant_count != 1 || count(module_implements('node_grants')) > 0) {
      $value = format_plural($grant_count, 'One permission in use', '@count permissions in use', array('@count' => $grant_count));
    }
    else {
      $value = t('Disabled');
    }
    $value .= ' (' . l(t('Rebuild permissions'), 'admin/reports/status/rebuild') . ')';

    if ($needs_rebuild) {
      $description = t('Node access permissions need to be rebuilt.');
      $severity = REQUIREMENT_ERROR;
    }
    else {
      $description = t('If the site is experiencing problems with permissions to content, you may have to rebuild the permissions cache.');
      $severity = REQUIREMENT_OK;
    }

    // Add further information.
    $description .= ' ' . t('Rebuilding will remove all privileges to content and replace them with permissions based on the current modules and settings. Rebuilding may take some time if there is a lot of content or complex permission settings. After rebuilding has completed, content will automatically use the new permissions.');

    $requirements['node_access'] = array(
      'title' => t('Node Access Permissions'),
      'value' => $value,
      'description' => $description,
      'severity' => $severity
    );
  }
  return $requirements;
}