function og_ui_subscribe in Organic groups 7.2

Same name and namespace in other branches

1. 7 og_ui/og_ui.pages.inc \og_ui_subscribe()

Subscribe the current user to a group.

Parameters

$entity_type: The group entity type.

$etid: The group entity ID.

$field_name: Optional; Group audience field name. Defaults to first best matching field.

1 string reference to 'og_ui_subscribe'

og_ui_menu in og_ui/og_ui.module

Implements hook_menu().

File

og_ui/og_ui.pages.inc, line 19

Page callbacks for Organic groups module.

Code

function og_ui_subscribe($entity_type, $etid, $field_name = NULL) {
  global $user;
  $entity_info = entity_get_info($entity_type);
  if (!$entity_type || !$entity_info) {

    // Not a valid entity type.
    drupal_not_found();
    return;
  }
  $entity = entity_load_single($entity_type, $etid);
  if (!$entity || !og_is_group($entity_type, $entity)) {

    // Not a valid entity, or not a group.
    drupal_not_found();
    return;
  }
  list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
  $account = user_load($user->uid);
  if (empty($field_name)) {
    $field_name = og_get_best_group_audience_field('user', $account, $entity_type, $bundle, TRUE);
    if (empty($field_name)) {

      // User entity has no group audience field.
      drupal_not_found();
      return;
    }
  }
  $field = field_info_field($field_name);
  $instance = field_info_instance('user', $field_name, 'user');
  if (empty($instance) || !field_access('view', $field, 'user', $account)) {

    // Field name given is incorrect, or user doesn't have access to the field.
    drupal_not_found();
    return;
  }
  if (!$user->uid) {

    // Anonymous user can't request membership.
    $dest = drupal_get_destination();
    if (variable_get('user_register', 1)) {
      drupal_set_message(t('In order to join any group, you must <a href="!login">login</a>. After you have successfully done so, you will need to request membership again.', array(
        '!login' => url("user/login", array(
          'query' => $dest,
        )),
      )));
    }
    else {
      drupal_set_message(t('In order to join any group, you must <a href="!login">login</a> or <a href="!register">register</a> a new account. After you have successfully done so, you will need to request membership again.', array(
        '!register' => url("user/register", array(
          'query' => $dest,
        )),
        '!login' => url("user/login", array(
          'query' => $dest,
        )),
      )));
    }
    drupal_goto('user');
  }
  $redirect = FALSE;
  $message = '';
  $params = array();
  $params['@user'] = format_username($user);

  // Show the group name only if user has access to it.
  $params['@group'] = entity_access('view', $entity_type, $entity) ? entity_label($entity_type, $entity) : t('Private group');
  if (og_is_member($entity_type, $id, 'user', $user, array(
    OG_STATE_BLOCKED,
  ))) {

    // User is blocked, access denied.
    drupal_access_denied();
    return;
  }
  if (og_is_member($entity_type, $id, 'user', $user, array(
    OG_STATE_PENDING,
  ))) {

    // User is pending, return them back.
    $message = $user->uid == $user->uid ? t('You already have a pending membership for the group @group.', $params) : t('@user already has a pending membership for the  the group @group.', $params);
    $redirect = TRUE;
  }
  if (og_is_member($entity_type, $id, 'user', $user, array(
    OG_STATE_ACTIVE,
  ))) {

    // User is already a member, return them back.
    $message = $user->uid == $user->uid ? t('You are already a member of the group @group.', $params) : t('@user is already a member of the group @group.', $params);
    $redirect = TRUE;
  }
  if (!$message && $field['cardinality'] != FIELD_CARDINALITY_UNLIMITED) {

    // Check if user is already registered as active or pending in the maximum
    // allowed values.
    $wrapper = entity_metadata_wrapper('user', $account->uid);
    if ($field['cardinality'] == 1) {
      $count = $wrapper->{$field_name}
        ->value() ? 1 : 0;
    }
    else {
      $count = $wrapper->{$field_name}
        ->count();
    }
    if ($count >= $field['cardinality']) {
      $message = t('You cannot register to this group, as you have reached your maximum allowed subscriptions.');
      $redirect = TRUE;
    }
  }
  if ($redirect) {
    drupal_set_message($message, 'warning');
    $url = entity_uri($entity_type, $entity);
    drupal_goto($url['path'], $url['options']);
  }
  if (og_user_access($entity_type, $id, 'subscribe', $user) || og_user_access($entity_type, $id, 'subscribe without approval', $user)) {

    // Show the user a subscription confirmation.
    return drupal_get_form('og_ui_confirm_subscribe', $entity_type, $id, $user, $field_name);
  }
  drupal_access_denied();
}