$category = new claroCategory();
$category->handleForm();
if ($category->validate()) {
$category->save();
$dialogBox->success(get_lang('Category modified'));
} else {
if (claro_failure::get_last_failure() == 'category_duplicate_code') {
$dialogBox->error(get_lang('This code already exists'));
} elseif (claro_failure::get_last_failure() == 'category_self_linked') {
$dialogBox->error(get_lang('Category can\'t be its own parent'));
} elseif (claro_failure::get_last_failure() == 'category_child_linked') {
$dialogBox->error(get_lang('Category can\'t be linked to one of its own children'));
} elseif (claro_failure::get_last_failure() == 'category_missing_field') {
$dialogBox->error(get_lang('Some fields are missing'));
}
$dialogBox->form($category->displayForm());
}
break;
// Delete an existing category
// Delete an existing category
case 'exDelete':
$category = new claroCategory();
if ($category->load($id)) {
if (ClaroCategory::countSubCategories($category->id) > 0) {
$dialogBox->error(get_lang('You cannot delete a category having sub categories'));
} else {
$category->delete();
$dialogBox->success(get_lang('Category deleted. Courses linked to this category have been linked to the root category.'));
}
} else {
$dialogBox->error(get_lang('Category not found'));
