function og_context_handler_url in Organic groups 7.2

Same name and namespace in other branches

1. 7 og_context/og_context.module \og_context_handler_url()

Context handler; Get groups from node create URL.

1 string reference to 'og_context_handler_url'

og_context_og_context_negotiation_info in og_context/og_context.module

Implements hook_og_context_negotiation_info().

File

og_context/og_context.module, line 469

Get a group from a viewed page.

Code

function og_context_handler_url() {
  if (!module_exists('entityreference_prepopulate')) {
    return;
  }
  $item = menu_get_item();
  if (!$item || strpos($item['path'], 'node/add/') !== 0) {
    return;
  }
  if (empty($item['map'][2])) {

    // If we don't have this key in the array, it means the user doesn't have
    // access to create this node.
    return;
  }
  $node_type = str_replace('-', '_', $item['map'][2]);
  if (!($fields = og_get_group_audience_fields('node', $node_type))) {
    return;
  }
  $gids = array();
  foreach ($fields as $field_name => $label) {
    $field = field_info_field($field_name);
    $instance = field_info_instance('node', $field_name, $node_type);
    if ($ids = entityreference_prepopulate_get_values_from_url($field, $instance)) {

      // We need to validate those values ourself, as we called
      // entityreference_prepopulate_get_values_from_url() directly, bypassing
      // entityreference_prepopulate_get_values().
      $target_type = $field['settings']['target_type'];
      $valid_ids = array();
      $entities = entity_load($target_type, $ids);
      foreach ($entities as $id => $entity) {
        if (!entity_access('view', $target_type, $entity)) {

          // User can't access entity.
          continue;
        }
        if (!og_is_group($target_type, $entity)) {

          // Entity is not a group.
          continue;
        }
        $valid_ids[] = $id;
      }
      if ($valid_ids) {
        $gids += array(
          $target_type => array(),
        );
        $gids[$target_type] = array_merge($gids[$target_type], $valid_ids);
      }
    }
  }
  return $gids;
}