/**
* Checks to see if the page has the proper
* display value to be included into the menu
* rendering.
*
* The page must be pusblished and be set to display
* in the course menu and not be locked with a
* non-visible lock.
*
* @param object $page Page object
* @return boolean
**/
protected function dont_display($page)
{
if (DISP_MENU & $page->display and DISP_PUBLISH & $page->display and !(page_is_locked($page) and !page_is_visible_lock($page))) {
return false;
}
return true;
}
/**
* This function returns the page objects of the next/previous pages
* relative to the passed page ID
*
* @param int $pageid Base next/previous off of this page ID
* @param int $courseid (Optional) ID of the course
*/
function page_get_next_previous_pages($pageid, $courseid = NULL)
{
global $COURSE;
if ($courseid === NULL) {
$courseid = $COURSE->id;
}
$return = new stdClass();
$return->prev = false;
$return->next = false;
if ($pages = page_get_all_pages($courseid, 'flat')) {
// Remove any unpublished pages
foreach ($pages as $id => $page) {
if (!($page->display & DISP_PUBLISH)) {
unset($pages[$id]);
}
}
if (!empty($pages)) {
// Search for the pages
$get = false;
$locked = array();
foreach ($pages as $id => $page) {
if (in_array($page->parent, $locked) or page_is_locked($page) and !page_is_visible_lock($page)) {
$locked[] = $page->id;
}
if ($get and !in_array($page->id, $locked)) {
// We have seen the id we're looking for
$return->next = $page;
break;
// quit this business
}
if ($id == $pageid) {
// We've found the id that we are looking for
$get = true;
}
if (!$get and !in_array($page->id, $locked)) {
// Only if we haven't found what we're looking for
$return->prev = $page;
}
}
}
}
return $return;
}
