user_roles

Retrieve an array of roles matching specified conditions.

Parameters

$membersonly: Set this to TRUE to exclude the 'anonymous' role.

$permission: A string containing a permission. If set, only roles containing that permission are returned.

Return value

An associative array with the role id as the key and the role name as value.

14 calls to user_roles()

File

core/modules/user/user.module, line 2629

Enables the user registration and login system.

Code

function user_roles($membersonly = FALSE, $permission = NULL) {
  $user_roles = &drupal_static(__FUNCTION__);

  // Do not cache roles for specific permissions. This data is not requested
  // frequently enough to justify the additional memory use.
  if (empty($permission)) {
    $cid = $membersonly ? DRUPAL_AUTHENTICATED_RID : DRUPAL_ANONYMOUS_RID;
    if (isset($user_roles[$cid])) {
      return $user_roles[$cid];
    }
  }

  $query = db_select('role', 'r');
  $query->addTag('translatable');
  $query->fields('r', array('rid', 'name'));
  $query->orderBy('weight');
  $query->orderBy('name');
  if (!empty($permission)) {
    $query->innerJoin('role_permission', 'p', 'r.rid = p.rid');
    $query->condition('p.permission', $permission);
  }
  $result = $query->execute();

  $roles = array();
  foreach ($result as $role) {
    switch ($role->rid) {
      // We only translate the built in role names
      case DRUPAL_ANONYMOUS_RID:
        if (!$membersonly) {
          $roles[$role->rid] = t($role->name);
        }
        break;
      case DRUPAL_AUTHENTICATED_RID:
        $roles[$role->rid] = t($role->name);
        break;
      default:
        $roles[$role->rid] = $role->name;
    }
  }

  if (empty($permission)) {
    $user_roles[$cid] = $roles;
    return $user_roles[$cid];
  }

  return $roles;
}