function ctools_term_has_parent_ctools_access_check

Check for access.

File

plugins/access/term_has_parent.inc, line 102

Code

function ctools_term_has_parent_ctools_access_check($conf, $context) {
    // As far as I know there should always be a context at this point, but this
    // is safe.
    if (empty($context) || empty($context->data) || empty($context->data->vid) || empty($context->data->tid)) {
        return FALSE;
    }
    // Get the $vid.
    if (!isset($conf['vid'])) {
        return FALSE;
    }
    $vid = $conf['vid'];
    // we'll start looking up the hierarchy from our context term id.
    $current_term = $context->data->tid;
    $term = '';
    // Scan up the tree.
    while (TRUE) {
        // Select parent as term_parent to avoid PHP5 complications with the parent keyword.
        // @todo: Find a way to reduce the number of queries required for really deep hierarchies.
        $term = db_query("SELECT parent AS term_parent, tid AS tid FROM {taxonomy_term_hierarchy} th WHERE th.tid = :tid", array(
            ':tid' => $current_term,
        ))->fetchObject();
        // If no term is found, get out of the loop.
        if (!$term || empty($term->tid)) {
            break;
        }
        // Check the term selected, if the user asked it to.
        if (!empty($conf['include_self']) && isset($conf['vid_' . $vid][$term->tid])) {
            return TRUE;
        }
        // Did we find the parent TID we were looking for?
        if (isset($conf['vid_' . $vid][$term->tid])) {
            // YES, we're done!
            return TRUE;
        }
        // Nope, we didn't find it.
        // If this is the top of the hierarchy, stop scanning.
        if ($term->term_parent == 0) {
            break;
        }
        // Update the parent, and keep scanning.
        $current_term = $term->term_parent;
    }
    return FALSE;
}