$ID = intval($ID);
$filter_lesson_id = intval($filter_lesson_id);
$lessonPath = '';
if (isset($_POST['LESSON_PATH'])) {
$lessonPath = $_POST['LESSON_PATH'];
} elseif (isset($_GET['LESSON_PATH'])) {
$lessonPath = $_GET['LESSON_PATH'];
} else {
$result = CLQuestion::GetByID($ID);
$arData = $result->Fetch();
$oPath = new CLearnPath($arData['LESSON_ID']);
$lessonPath = $oPath->ExportUrlencoded();
}
$oPath = new CLearnPath();
$oPath->ImportUrlencoded($lessonPath);
$uriLessonPath = $oPath->ExportUrlencoded();
$NEW_LESSON_ID = false;
$LESSON_ID = false;
if ($ID == 0) {
$LESSON_ID = $oPath->PopBottom();
} else {
// Get lesson id from item data
$result = CLQuestion::GetByID($ID);
$arQuestionData = $result->ExtractFields("str_");
if ($arQuestionData) {
$LESSON_ID = $arQuestionData['LESSON_ID'];
if (isset($_POST['LESSON_ID']) && $_POST['LESSON_ID'] >= 1 && $_POST['LESSON_ID'] != $LESSON_ID) {
$NEW_LESSON_ID = (int) $_POST['LESSON_ID'];
}
}
}
//Set Title
$arParams["SET_TITLE"] = $arParams["SET_TITLE"] == "N" ? "N" : "Y";
if ($arParams["SET_TITLE"] == "Y") {
$APPLICATION->SetTitle($arResult["CHAPTER"]["NAME"]);
}
$bCanEdit = CLearnAccessMacroses::CanUserEditLesson(array('lesson_id' => $arParams['CHAPTER_ID'])) || $USER->IsAdmin();
if ($bCanEdit) {
$deleteReturnUrl = "";
if ($parent = $this->GetParent()) {
$parentLessonId = 0;
$lessonPath = "";
if (strlen($arParams["LESSON_PATH"]) > 0) {
$path = new CLearnPath();
$path->ImportUrlencoded($arParams["LESSON_PATH"]);
$path->PopBottom();
$lessonPath = $path->ExportUrlencoded();
$lessonId = $path->PopBottom();
$edgesToParents = CLearnLesson::ListImmediateParents($arParams['CHAPTER_ID']);
foreach ($edgesToParents as $arEdgeToParent) {
if ((int) $arEdgeToParent['PARENT_LESSON'] === (int) $lessonId) {
$parentLessonId = $lessonId;
break;
}
}
}
if ($parentLessonId) {
$deleteReturnUrl = CComponentEngine::MakePathFromTemplate($parent->arResult["FOLDER"] . $parent->arResult["URL_TEMPLATES"]["chapter.detail"], array("CHAPTER_ID" => "0" . $parentLessonId, "COURSE_ID" => $arParams["COURSE_ID"]));
$deleteReturnUrl .= strpos($deleteReturnUrl, "?") !== false ? "&" : "?";
$deleteReturnUrl .= "LESSON_PATH=" . $lessonPath;
} else {
$deleteReturnUrl = CComponentEngine::MakePathFromTemplate($parent->arResult["FOLDER"] . $parent->arResult["URL_TEMPLATES"]["course.detail"], array("COURSE_ID" => $arParams["COURSE_ID"]));
ClearVars();
$lessonPath = '';
if (isset($_POST['LESSON_PATH'])) {
$lessonPath = $_POST['LESSON_PATH'];
} elseif (isset($_GET['LESSON_PATH'])) {
$lessonPath = $_GET['LESSON_PATH'];
}
$oPath = new CLearnPath();
$oPath->ImportUrlencoded($lessonPath);
$LESSON_ID = $oPath->GetBottom();
if ($LESSON_ID === false) {
CAdminMessage::ShowMessage(GetMessage('LEARNING_BAD_LESSON'));
require $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/epilog_admin.php';
exit;
}
$uriLessonPath = $oPath->ExportUrlencoded();
unset($lessonPath);
if (isset($from) && strlen($from) > 0) {
$str_from = "&from=" . htmlspecialcharsbx($from);
} else {
$str_from = "";
}
$oAccess = CLearnAccess::GetInstance($USER->GetID());
$bAccessLessonModify = $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_WRITE);
$lesson = CLearnLesson::GetList(array(), array('LESSON_ID' => $LESSON_ID));
$arLesson = $lesson->Fetch();
$oTree = CLearnLesson::GetTree($LESSON_ID, array('EDGE_SORT' => 'asc'), array(), false);
$arSubLessons = $oTree->GetTreeAsList();
$arSubLessonsIDs = array();
foreach ($arSubLessons as $arSubLesson) {
$arSubLessonsIDs[] = (int) $arSubLesson['LESSON_ID'];
if (isset($_POST['LESSON_PATH']) || isset($_GET['LESSON_PATH'])) {
if (isset($_POST['LESSON_PATH'])) {
$g_learn_currentLessonPath = $_POST['LESSON_PATH'];
} else {
$g_learn_currentLessonPath = $_GET['LESSON_PATH'];
}
$oPath = new CLearnPath();
$oPath->ImportUrlencoded($g_learn_currentLessonPath);
$arPath = $oPath->GetPathAsArray();
if (count($arPath) >= 2) {
// pop current lesson id
array_pop($arPath);
// remember parent path
$oParentPath = new CLearnPath();
$oParentPath->SetPathFromArray($arPath);
$g_learn_parentLessonPath = urldecode($oParentPath->ExportUrlencoded());
// pop parent lesson id
$g_learn_parentLessonId = array_pop($arPath);
// If lesson was edited and unlinked from parent $g_parentLessonId
// we must cleanup LESSON_PATH. Also we must cleanup lesson path if
// it is wrong due to other reasons.
// $arEdgesToParents = CLearnLesson::ListImmediateParents($LESSON_ID);
//
// $isLinkToParentFound = true;
// foreach ($arEdgesToParents as $arEdgeToParent)
// {
// if ( (int) $arEdgeToParent['PARENT_LESSON'] === (int) $g_learn_parentLessonId )
// $isLinkToParentFound = true;
// }
//
// if ( ! $isLinkToParentFound )
/**
* WARNING: tree build algorithm skips duplicated lessons, so
* if there is some duplicates lessons, only one of them
* will be in resulted tree.
*/
protected function BuildTreeRecursive($rootLessonId, $arOrder, $arFilter, $depth = 0, $parentChapterId = NULL, $arSelectFields, $arRootPath)
{
$oPath = new CLearnPath();
$arLessons = array();
$CDBResult = CLearnLesson::GetListOfImmediateChilds($rootLessonId, $arOrder, $arFilter, $arSelectFields);
while (($arData = $CDBResult->Fetch()) !== false) {
// Skip lessons that are already in tree (prevent cycling)
if (in_array($arData['LESSON_ID'], $this->arLessonsInTree)) {
continue;
}
// Skip lessons prohibited for publishing
if (in_array((int) $arData['LESSON_ID'], $this->arPublishProhibitedLessons, true)) {
continue;
}
// Path as array for current LESSON_ID
$arCurrentLessonPath = $arRootPath;
$arCurrentLessonPath[] = (int) $arData['LESSON_ID'];
$oPath->SetPathFromArray($arCurrentLessonPath);
$strUrlencodedCurrentLessonPath = $oPath->ExportUrlencoded();
// Register lesson
$this->arLessonsInTree[] = $arData['LESSON_ID'];
$this->arLessonsAsList[] = array_merge($arData, array('#DEPTH_IN_TREE' => $depth, '#LESSON_PATH' => $strUrlencodedCurrentLessonPath));
// hack: we don't know yet, what index name must be for element in array.
// And we must preserve order in array elements (for compatibility).
// But we will know index name after BuildTreeRecursive will be called, which
// adds to array new elements. So create bother elements, and after remove unneeded.
$this->arLessonsAsListOldMode['LE' . $arData['LESSON_ID']] = array();
$this->arLessonsAsListOldMode['CH' . $arData['LESSON_ID']] = array();
$item = $arData;
$item['#childs'] = array();
$lessonType_oldDataModel = 'LE';
if ($arData['IS_CHILDS']) {
$lessonType_oldDataModel = 'CH';
$item['#childs'] = $this->BuildTreeRecursive($arData['LESSON_ID'], $arOrder, $arFilter, $depth + 1, $arData['LESSON_ID'], $arSelectFields, $arCurrentLessonPath);
// It still can be zero childs due to $arFilter, publish prohibition or prevent cycling instead of non-zero $arData['IS_CHILDS']
if (count($item['#childs']) == 0) {
$lessonType_oldDataModel = 'LE';
}
}
// remove unneeded element caused by hack above
if ($lessonType_oldDataModel === 'LE') {
unset($this->arLessonsAsListOldMode['CH' . $arData['LESSON_ID']]);
} else {
unset($this->arLessonsAsListOldMode['LE' . $arData['LESSON_ID']]);
}
$this->arLessonsAsListOldMode[$lessonType_oldDataModel . $arData['LESSON_ID']] = array_merge($arData, array('ID' => $arData['LESSON_ID'], 'CHAPTER_ID' => $parentChapterId, 'SORT' => $arData['EDGE_SORT'], 'TYPE' => $lessonType_oldDataModel, 'DEPTH_LEVEL' => $depth + 1, '#LESSON_PATH' => $strUrlencodedCurrentLessonPath));
$arLessons[] = $item;
}
return $arLessons;
}
public function BuildListContextMenu()
{
$aContext = array();
$parentLessonId = false;
// Button "level up" available only if LESSON_PATH available and parent exists in it
if (isset($_GET['LESSON_PATH']) && strlen($_GET['LESSON_PATH']) > 0) {
$PROPOSE_RETURN_LESSON_PATH = '&PROPOSE_RETURN_LESSON_PATH=' . urlencode($_GET['LESSON_PATH']);
$oPath = new CLearnPath();
$oPath->ImportUrlencoded($_GET['LESSON_PATH']);
$arPath = $oPath->GetPathAsArray();
$arUpPath = $arPath;
$count_arUpPath = count($arUpPath);
if (isset($arUpPath[$count_arUpPath - 1])) {
$parentLessonId = $arUpPath[$count_arUpPath - 1];
}
// Is parent node exists
if ($count_arUpPath >= 2) {
// "Level up"
array_pop($arUpPath);
$oUpPath = new CLearnPath();
$oUpPath->SetPathFromArray($arUpPath);
$aContext[] = array('ICON' => 'btn_up', 'TEXT' => GetMessage('LEARNING_A_UP'), 'LINK' => 'learn_unilesson_admin.php?lang=' . LANG . '&set_filter=Y' . '&PARENT_LESSON_ID=' . htmlspecialcharsbx($arUpPath[count($arUpPath) - 1]) . '&LESSON_PATH=' . $oUpPath->ExportUrlencoded() . '&' . $this->hrefSearchRetPoint, 'TITLE' => GetMessage('LEARNING_A_UP'));
} else {
// To all lessons list
$aContext[] = array('ICON' => 'btn_up', 'TEXT' => GetMessage('LEARNING_ALL_LESSONS'), 'LINK' => 'learn_unilesson_admin.php?lang=' . LANG . '&set_filter=Y' . '&PARENT_LESSON_ID=-2' . '&' . $this->hrefSearchRetPoint, 'TITLE' => GetMessage('LEARNING_ALL_LESSONS'));
}
unset($arPath, $oPath, $arUpPath, $oUpPath);
} else {
$PROPOSE_RETURN_LESSON_PATH = '';
}
if (!$this->IsSearchMode()) {
/**
* User can create lesson if he has base access for creating AND:
* 1) no parent lesson
* OR
* 2) if user creating lesson linked to some parent on which user has access
* to link childs, and user has access to link his created lesson to parent
*/
$isAccessCreate = false;
try {
if ($this->oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_CREATE)) {
if ($parentLessonId === false) {
$isAccessCreate = true;
} elseif ($this->oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS | CLearnAccess::OP_LESSON_LINK_TO_PARENTS) || $this->oAccess->IsLessonAccessible($parentLessonId, CLearnAccess::OP_LESSON_LINK_DESCENDANTS) && $this->oAccess->IsBaseAccessForCR(CLearnAccess::OP_LESSON_LINK_TO_PARENTS)) {
$isAccessCreate = true;
}
}
} catch (Exception $e) {
}
if ($isAccessCreate) {
// btn add new course
$aContext[] = array('ICON' => 'btn_new', 'TEXT' => GetMessage('LEARNING_ADD_COURSE'), 'LINK' => 'learn_course_edit.php?lang=' . LANG . $PROPOSE_RETURN_LESSON_PATH, 'TITLE' => GetMessage('LEARNING_ADD_COURSE_ALT'));
// btn add new unilesson (non-course)
$aContext[] = array('ICON' => 'btn_new', 'TEXT' => GetMessage('LEARNING_UNILESSON_ADD'), 'LINK' => 'learn_unilesson_edit.php?lang=' . LANG . $PROPOSE_RETURN_LESSON_PATH, 'TITLE' => GetMessage('LEARNING_UNILESSON_ADD'));
}
}
$this->oList->AddAdminContextMenu($aContext);
return $this;
}
function __learning_admin_get_menu($THIS, $arPath = array(), $deep = 0, &$immediateChildsIds, $loadOnlySpecialEntities = false)
{
$immediateChildsIds = array();
// puts here ids of all immediate childs
$deep = (int) $deep;
// Index in path for current parentLessonId
$indexInPath = $deep - 1;
// Path doesn't include top root element ('all courses' or 'all unilessons')
$arMenu = array();
//$urlPath = $oPath->ExportUrlencoded();
// current lesson id (not exists only for top root)
if (isset($arPath[$deep])) {
$currentLessonIdInPath = (int) $arPath[$deep];
} else {
$currentLessonIdInPath = false;
}
// Path to current element
$arCurrentDeepPath = array();
foreach ($arPath as $key => $value) {
if ($key === $deep) {
break;
}
$arCurrentDeepPath[] = $value;
}
if ($deep === 0) {
// We are at the top level, so we must get list of all courses
$CDBResult = CCourse::GetList(array('COURSE_SORT' => 'ASC'));
} else {
// If not parent with such indexInPath => we are deep too much.
if (!isset($arPath[$indexInPath])) {
return $arMenu;
}
// no items
$parentLessonId = $arPath[$indexInPath];
$oCurrentDeepPath = new CLearnPath();
$oCurrentDeepPath->SetPathFromArray(array_merge($arCurrentDeepPath));
$urlPath = $oCurrentDeepPath->ExportUrlencoded();
$arMenu[] = array("text" => GetMessage("LEARNING_QUESTION"), "url" => "learn_question_admin.php?lang=" . LANG . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath . "&from=learn_menu", "icon" => "learning_icon_question", "more_url" => array("learn_question_admin.php?lang=" . LANG . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath . "&from=learn_menu", "learn_question_edit.php?lang=" . LANG . '&LESSON_PATH=' . $urlPath . "&from=learn_menu", "learn_question_admin.php?lang=" . LANG . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath, "learn_question_edit.php?lang=" . LANG . '&LESSON_PATH=' . $urlPath, "learn_question_admin.php?lang=" . LANG . '&LESSON_PATH=' . $urlPath), "title" => GetMessage("LEARNING_QUESTION_LIST"));
$CDBResult = CLearnLesson::GetListOfImmediateChilds($parentLessonId, array('EDGE_SORT' => 'ASC'));
// determine, is parent a course (only for courses in subroot level)?
if ($deep === 1) {
$immediateParentCourse = CLearnLesson::GetLinkedCourse($parentLessonId);
if ($immediateParentCourse !== false) {
// immediate parent is a course, so we must add entity 'Tests'
$arMenu[] = array('text' => GetMessage('LEARNING_TESTS'), 'url' => 'learn_test_admin.php?lang=' . LANG . '&filter=Y&set_filter=Y' . '&COURSE_ID=' . ($immediateParentCourse + 0) . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath, 'icon' => 'learning_icon_tests', 'more_url' => array('learn_test_admin.php?lang=' . LANG . '&set_filter=Y' . '&COURSE_ID=' . ($immediateParentCourse + 0) . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath, 'learn_test_edit.php?lang=' . LANG . '&filter=Y&set_filter=Y' . '&COURSE_ID=' . ($immediateParentCourse + 0) . '&PARENT_LESSON_ID=' . ($parentLessonId + 0) . '&LESSON_PATH=' . $urlPath), 'title' => GetMessage('LEARNING_TESTS_LIST'));
unset($urlPath);
unset($oCurrentDeepPath);
}
}
}
if ($loadOnlySpecialEntities) {
return $arMenu;
}
// When listing courses, limit it's count
if ($deep === 0) {
$items = 0;
$learning_menu_max_courses = (int) COption::GetOptionString("learning", "menu_max_courses", "10");
}
while ($arData = $CDBResult->GetNext()) {
// When listing courses, limit it's count
if ($deep === 0) {
if ($items >= $learning_menu_max_courses) {
// add element 'other courses'
$arMenu[] = array('text' => GetMessage('LEARNING_MENU_COURSES_OTHER'), 'url' => 'learn_unilesson_admin.php?lang=' . LANG . '&PARENT_LESSON_ID=-1', 'title' => GetMessage('LEARNING_MENU_COURSES_ALT'), 'more_url' => array('learn_test_admin.php', 'learn_test_edit.php', 'learn_unilesson_admin.php', 'learn_unilesson_edit.php', 'learn_question_admin.php', 'learn_question_edit.php'));
// stop adding courses to menu
break;
}
$items++;
}
$arSubImmediateChildsIds = false;
$arCurItemPath = $arCurrentDeepPath;
$arCurItemPath[] = $arData['LESSON_ID'] + 0;
// Remember all immediate childs
$immediateChildsIds[] = $arData['LESSON_ID'] + 0;
$oCurItemPath = new CLearnPath();
$oCurItemPath->SetPathFromArray($arCurItemPath);
$urlCurItemPath = $oCurItemPath->ExportUrlencoded();
$arItem = array('text' => $arData['NAME'], 'url' => 'learn_unilesson_admin.php?lang=' . LANG . '&PARENT_LESSON_ID=' . ($arData['LESSON_ID'] + 0) . '&LESSON_PATH=' . $oCurItemPath->ExportUrlencoded(), 'title' => $arData['NAME'], 'items_id' => 'menu_learning_courses_new_' . implode('_', $arCurItemPath), "icon" => "learning_icon_courses", 'module_id' => 'learning', 'more_url' => array('learn_unilesson_admin.php?lang=' . LANG . '&set_filter=Y' . '&PARENT_LESSON_ID=' . ($arData['LESSON_ID'] + 0) . '&LESSON_PATH=' . $urlCurItemPath, 'learn_unilesson_admin.php?lang=' . LANG . '&PARENT_LESSON_ID=' . ($arData['LESSON_ID'] + 0) . '&LESSON_PATH=' . $urlCurItemPath, 'learn_unilesson_admin.php?lang=' . LANG . '&set_filter=Y' . '&LESSON_PATH=' . $urlCurItemPath, 'learn_question_admin.php?lang=' . LANG . '&filter=Y&set_filter=Y' . '&LESSON_PATH=' . $urlCurItemPath, 'learn_question_edit.php?lang=' . LANG . '&set_filter=Y' . '&LESSON_PATH=' . $urlCurItemPath, 'learn_unilesson_edit.php?lang=' . LANG . '&LESSON_ID=' . ($arData['LESSON_ID'] + 0) . '&LESSON_PATH=' . $urlCurItemPath, 'learn_unilesson_edit.php?lang=' . LANG . '&PARENT_LESSON_ID=' . ($arData['LESSON_ID'] + 0) . '&LESSON_PATH=' . $urlCurItemPath));
$arItem['items'] = array();
if ($deep === 0 && isset($arData['LINKED_LESSON_ID']) && $arData['LINKED_LESSON_ID'] > 0) {
$arItem['page_icon'] = $arItem['icon'] = 'learning_icon_courses';
$arItem['dynamic'] = true;
$loadOnlySpecialEntities = false;
// Load child items only for lesson in current path
if ($arData['LESSON_ID'] == $currentLessonIdInPath) {
$arItem['items'] = __learning_admin_get_menu($THIS, $arPath, $deep + 1, $arSubImmediateChildsIds);
}
} else {
$loadOnlySpecialEntities = false;
$childsCnt = CLearnLesson::CountImmediateChilds($arData['LESSON_ID']);
$questionsCnt = CLQuestion::GetCount(array('LESSON_ID' => (int) $arData['LESSON_ID']));
if ($childsCnt > 0) {
$arItem['page_icon'] = $arItem['icon'] = 'learning_icon_chapters';
} else {
$arItem['page_icon'] = $arItem['icon'] = 'learning_icon_lessons';
}
$arItem['dynamic'] = true;
// Load child items only for lesson in current path
if ($arData['LESSON_ID'] == $currentLessonIdInPath) {
$arItem['items'] = __learning_admin_get_menu($THIS, $arPath, $deep + 1, $arSubImmediateChildsIds);
}
}
// now, adds items into more_url (it needs when edit form for childs opened)
if (is_array($arSubImmediateChildsIds)) {
$oSubItemPath = new CLearnPath();
foreach ($arSubImmediateChildsIds as $k => $v) {
// determine path for every child
$arSubItemPath = $arCurItemPath;
$arSubItemPath[] = $v;
// child id added to current path
$oSubItemPath->SetPathFromArray($arSubItemPath);
$arItem['more_url'][] = 'learn_unilesson_edit.php?lang=' . LANG . '&filter=Y&set_filter=Y' . '&LESSON_ID=' . ($v + 0) . '&LESSON_PATH=' . $oSubItemPath->ExportUrlencoded();
}
unset($oSubItemPath);
$arSubImmediateChildsIds = false;
}
$arMenu[] = $arItem;
unset($oCurItemPath, $arCurItemPath, $urlCurItemPath, $arItem);
}
return $arMenu;
}