function og_determine_context_get_group in Organic groups 6

Same name and namespace in other branches

1. 6.2 og.module \og_determine_context_get_group()

Helper function; Get an appropriate group node to be set as the group conext.

If a group post belongs to multiple group nodes, the logic for determining the group node is: 1) The group we showed on the prior page view (if any). 2) The only or one of the group(s) the current user is a member of. 3) The 'first' group in $node->og_groups.

Parameters

$node: The node that the context should be retrieved from.

$account: (optional) The account to check, if not given use currently logged in user.

Return value

The group node if exists and accesiable by the user.

See also

og_determine_context()

1 call to og_determine_context_get_group()

og_determine_context in ./og.module

Set group context using the menu system.

File

./og.module, line 508

Code

function og_determine_context_get_group($node, $account = NULL) {
  if (empty($account)) {
    global $user;
    $account = $user;
  }
  if (og_is_group_type($node->type)) {
    $group_node = $node;
  }
  elseif (og_is_group_post_type($node->type) && !empty($node->og_groups)) {

    // Post may be is in multiple groups ...
    if (isset($_SESSION['og_last']) && in_array($_SESSION['og_last'], $node->og_groups)) {
      $group = $_SESSION['og_last'];
    }
    elseif (!empty($user->og_groups) && ($gid = current(array_intersect($node->og_groups, array_keys($user->og_groups))))) {
      $group = $gid;
    }
    else {

      // No user is logged in, or none of the node's groups are the user's groups
      $group = current($node->og_groups);
    }
    if (!empty($group)) {
      $group_node = node_load($group);
    }
  }

  // Make sure user has view access to the group node.
  if (!empty($group_node) && node_access('view', $group_node, $account)) {
    return $group_node;
  }
}