function fb_devel_requirements in Drupal for Facebook 6.2

Same name and namespace in other branches

1. 6.3 fb_devel.install \fb_devel_requirements()
2. 7.3 fb_devel.install \fb_devel_requirements()

Implementation of hook_requirements().

Show warnings as necessary in Status Report page.

File

./fb_devel.install, line 15

Install file for fb_devel.module.

Code

function fb_devel_requirements($phase) {
  $t = get_t();
  $items = array();
  if ($phase == 'runtime') {
    $result = db_query('SELECT count(uid) FROM {users} WHERE data LIKE "%\\"app_specific\\"%" OR data LIKE "%\\"is_app_user\\"%" OR data LIKE "\\"fbu\\"%"');
    $count = db_result($result);
    if ($count) {
      $status = array(
        'title' => $t('Drupal for Facebook obsolete data.'),
        'description' => $t('Early versions of Drupal for Facebook stored information in users table.  Leave fb_devel.module enabled, and this data will be cleared during cron jobs.'),
      );
      $status['value'] = $t('Found %count rows', array(
        '%count' => $count,
      ));
      $status['severity'] = REQUIREMENT_WARNING;
      $items[] = $status;
    }

    // Confirm no accounts without authmap.  The problem caused by old bug, should only occur on sites that have been upgraded.
    $result = db_query('SELECT count(u.uid) FROm {users} u LEFT JOIN {authmap} a ON u.uid=a.uid WHERE u.name LIKE "%@facebook%" AND a.uid IS NULL');
    $count = db_result($result);
    if ($count) {
      $status = array(
        'title' => $t('Accounts Named NNN@facebook Without authmap'),
        'description' => $t('Drupal for Facebook may have failed to create authmap entry for these accounts.  Please report to the Drupal for Facebook issue queue, we are working on a fix.'),
        'value' => $count,
        'severity' => REQUIREMENT_WARNING,
      );
      $items[] = $status;
    }
  }

  // Test if json extensions are loaded.
  if (defined('SERVICES_JSON_SLICE')) {

    // defined in facebook's json wrapper, which is not compatible with PHP's JSON extensions.
    $items[] = array(
      'title' => $t('JSON extension for PHP'),
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('JSON extension must be present for Drupal for Facebook modules.  You can wait (forever) for facebook to <a href="!url">fix their bug</a>, or install the JSON extension. ', array(
        '!url' => 'http://bugs.developers.facebook.com/show_bug.cgi?id=4351',
      )),
    );
  }

  // arg_separator sanity check
  $sep = ini_get('arg_separator.output');
  if ($sep != '&') {
    $items[] = array(
      'title' => $t('Argument Separator'),
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('Facebook client libraries will not work properly if arg_separator.output is not "&".  Currently the value is "!sep".  Please change this in settings.php or php.ini.', array(
        '!sep' => check_plain($sep),
      )),
    );
  }

  // clean url sanity check
  if (!variable_get('clean_url', FALSE) && module_exists('fb_canvas') && $phase == 'runtime') {
    $message = $items[] = array(
      'title' => $t('Clean URLs'),
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('Drupal for Facebook will not function properly until <a href=!url>clean URLs</a> are turned on.', array(
        '!url' => url('admin/settings/clean-urls'),
      )),
    );
  }

  // Moved files sanity check.
  if (file_exists(drupal_get_path('module', 'fb_devel') . '/fb_feed.module')) {
    $items[] = array(
      'title' => $t('Drupal for Facebook obsolete files'),
      'severity' => REQUIREMENT_ERROR,
      'description' => $t('Drupal for Facebook modules have moved to <em>modules/fb/contrib/</em>, but your install still has old out-of-date files!  Delete the entire <em>modules/fb/</em> directory and re-install.'),
    );
  }
  if (!count($items) && $phase == 'runtime') {
    $items[] = array(
      'title' => $t('Drupal for Facebook Devel'),
      'value' => $t('No worries'),
      'description' => $t('All sanity checks OK.'),
    );
  }
  return $items;
}