public static function ProccessPOST($oAccess, $LESSON_ID, $sort = false)
{
$isAccessUseCache = true;
if ($sort === false) {
$sort = 500;
}
// Remove/add relations from/to parent
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache) || $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)) {
$arCurParentsIds = array();
$resParents = CLearnLesson::GetListOfImmediateParents($LESSON_ID);
while ($arParent = $resParents->Fetch()) {
$arCurParentsIds[] = (int) $arParent['LESSON_ID'];
}
$arDestParentsIds = array();
if (isset($_POST['RELATION_PARENT']) && is_array($_POST['RELATION_PARENT'])) {
foreach ($_POST['RELATION_PARENT'] as $key => $relatedLessonId) {
$arDestParentsIds[] = (int) $relatedLessonId;
}
}
// remove relations
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)) {
$arRemoveIds = array_diff($arCurParentsIds, $arDestParentsIds);
foreach ($arRemoveIds as $relatedLessonId) {
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($relatedLessonId, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)) {
CLearnLesson::RelationRemove($relatedLessonId, $LESSON_ID);
}
}
}
// add relations
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)) {
$arAddIds = array_diff($arDestParentsIds, $arCurParentsIds);
foreach ($arAddIds as $relatedLessonId) {
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($relatedLessonId, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)) {
CLearnLesson::RelationAdd($relatedLessonId, $LESSON_ID, array('SORT' => $sort));
}
}
}
}
// Remove/add relations from/to childs
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)) {
$arCurChildsIds = array();
$resChilds = CLearnLesson::GetListOfImmediateChilds($LESSON_ID);
while ($arChild = $resChilds->Fetch()) {
$arCurChildsIds[] = (int) $arChild['LESSON_ID'];
}
$arDestChildsIds = array();
if (isset($_POST['RELATION_CHILD']) && is_array($_POST['RELATION_CHILD'])) {
foreach ($_POST['RELATION_CHILD'] as $key => $relatedLessonId) {
$arDestChildsIds[] = (int) $relatedLessonId;
}
}
// remove relations
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)) {
$arRemoveIds = array_diff($arCurChildsIds, $arDestChildsIds);
foreach ($arRemoveIds as $relatedLessonId) {
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($relatedLessonId, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)) {
CLearnLesson::RelationRemove($LESSON_ID, $relatedLessonId);
}
}
}
// add relations
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($LESSON_ID, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)) {
$arAddIds = array_diff($arDestChildsIds, $arCurChildsIds);
foreach ($arAddIds as $relatedLessonId) {
if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache) || $oAccess->IsLessonAccessible($relatedLessonId, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)) {
CLearnLesson::RelationAdd($LESSON_ID, $relatedLessonId, array('SORT' => $sort));
}
}
}
}
}
