.
/**
* Handles lesson actions
*
* ACTIONS handled are:
* confirmdelete
* delete
* move
* moveit
* @package mod
* @subpackage lesson
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
**/
require_once("../../config.php");
require_once($CFG->dirroot.'/mod/lesson/locallib.php');
$id = required_param('id', PARAM_INT); // Course Module ID
$action = required_param('action', PARAM_ALPHA); // Action
$pageid = required_param('pageid', PARAM_INT);
$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
require_login($course, false, $cm);
$url = new moodle_url('/mod/lesson/lesson.php', array('id'=>$id,'action'=>$action));
$PAGE->set_url($url);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
require_capability('mod/lesson:edit', $context);
require_sesskey();
$lessonoutput = $PAGE->get_renderer('mod_lesson');
/// Process the action
switch ($action) {
case 'confirmdelete':
$PAGE->navbar->add(get_string($action, 'lesson'));
$thispage = $lesson->load_page($pageid);
echo $lessonoutput->header($lesson, $cm);
echo $OUTPUT->heading(get_string("deletingpage", "lesson", format_string($thispage->title)));
// print the jumps to this page
$params = array("lessonid" => $lesson->id, "pageid" => $pageid);
if ($answers = $DB->get_records_select("lesson_answers", "lessonid = :lessonid AND jumpto = :pageid + 1", $params)) {
echo $OUTPUT->heading(get_string("thefollowingpagesjumptothispage", "lesson"));
echo "\n";
foreach ($answers as $answer) {
if (!$title = $DB->get_field("lesson_pages", "title", array("id" => $answer->pageid))) {
print_error('cannotfindpagetitle', 'lesson');
}
echo $title."
\n";
}
}
echo $OUTPUT->confirm(get_string("confirmdeletionofthispage","lesson"),"lesson.php?action=delete&id=$cm->id&pageid=$pageid","view.php?id=$cm->id");
break;
case 'move':
$PAGE->navbar->add(get_string($action, 'lesson'));
$title = $DB->get_field("lesson_pages", "title", array("id" => $pageid));
echo $lessonoutput->header($lesson, $cm);
echo $OUTPUT->heading(get_string("moving", "lesson", format_string($title)));
$params = array ("lessonid" => $lesson->id, "prevpageid" => 0);
if (!$page = $DB->get_record_select("lesson_pages", "lessonid = :lessonid AND prevpageid = :prevpageid", $params)) {
print_error('cannotfindfirstpage', 'lesson');
}
echo "
\n";
break;
case 'delete':
$thispage = $lesson->load_page($pageid);
$thispage->delete();
redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id");
break;
case 'moveit':
$after = (int)required_param('after', PARAM_INT); // target page
$pages = $lesson->load_all_pages();
if (!array_key_exists($pageid, $pages) || ($after!=0 && !array_key_exists($after, $pages))) {
print_error('cannotfindpages', 'lesson', "$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id");
}
$pagetomove = clone($pages[$pageid]);
unset($pages[$pageid]);
$pageids = array();
if ($after === 0) {
$pageids['p0'] = $pageid;
}
foreach ($pages as $page) {
$pageids[] = $page->id;
if ($page->id == $after) {
$pageids[] = $pageid;
}
}
$pageidsref = $pageids;
reset($pageidsref);
$prev = 0;
$next = next($pageidsref);
foreach ($pageids as $pid) {
if ($pid === $pageid) {
$page = $pagetomove;
} else {
$page = $pages[$pid];
}
if ($page->prevpageid != $prev || $page->nextpageid != $next) {
$page->move($next, $prev);
}
$prev = $page->id;
$next = next($pageidsref);
if (!$next) {
$next = 0;
}
}
redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id");
break;
default:
print_error('unknowaction');
break;
}
echo $lessonoutput->footer();