function registration_is_registered in Entity Registration 8

Same name and namespace in other branches

1. 8.2 registration.module \registration_is_registered()
2. 7.2 registration.module \registration_is_registered()
3. 7 registration.module \registration_is_registered()

Determine is a person has an active registration for a host entity.

A person may be Drupal user account, identified by user uid ($uid). Or a non-user, identified by an email address ($anon_mail).

One of $anon_mail or $uid is required.

Parameters

object $registration: A fully loaded registration object.

string $anon_mail: (optional) An email address.

int $uid: (optional) A user account uid.

array $states: (optional) An array of states to test against. Defaults to active states.

Return value

bool

2 calls to registration_is_registered()

registration_access_people in ./registration.module

Determine people types user may register for an entity.

registration_form_validate in includes/registration.forms.inc

Validation callback for registration_form().

File

./registration.module, line 1398

Code

function registration_is_registered(Registration $registration, $anon_mail = NULL, $uid = NULL, $states = array()) {

  // must provide an UID or anon_mail
  // @todo: better course of action here?
  if (!$anon_mail && !$uid) {
    return FALSE;
  }
  if (empty($states)) {
    $states = registration_get_active_states();
  }

  // Ensure we have active states before querying against them.
  if (empty($states)) {
    return FALSE;
  }
  $query = db_select('registration', 'r')
    ->condition('entity_id', $registration->entity_id)
    ->condition('entity_type', $registration->entity_type)
    ->condition('state', $states, 'IN');
  if ($anon_mail) {

    // There's a user with this email, check to make sure they're not registered.
    if ($user = user_load_by_mail($anon_mail)) {
      $query
        ->condition(db_or()
        ->condition('anon_mail', $anon_mail)
        ->condition('user_uid', $user->uid));
    }
    else {
      $query
        ->condition('anon_mail', $anon_mail);
    }
  }
  elseif ($uid) {
    $query
      ->condition('user_uid', $uid);
  }

  // Exclude existing registration.
  if (isset($registration->registration_id)) {
    $query
      ->condition('registration_id', $registration->registration_id, '<>');
  }
  $count = $query
    ->countQuery()
    ->execute()
    ->fetchField();
  return $count > 0;
}