/**
* 单元删除页面
*/
function del()
{
//因为删除一个单元，就要删除其手下的分类类别，而删除分类类别后就要删除该类别下面的文章
//所有必须使用关联操作来执行
//序列化主键Id为：1,2,3,...以便批量删除
$del_id = $_POST['del_id'];
$section_id = implode($del_id, ',');
//实例化
$section = new SectionModel();
$category = new CategoryModel();
$article = new ArticleModel();
$menu_items = new MenuItemModel();
//如果单元删除成功
if ($section->delete($section_id)) {
//删除下属分类以及分类下属文章
$where = array('sectionid' => array('in', $section_id));
//删除分类
$category->where($where)->delete();
//删除文章
$article->where($where)->delete();
//删除单元后删除菜单项中的单元
$menu_where = array('type_id' => array('in', $section_id), 'type' => 'Section');
$menu_items->where($menu_where)->delete();
$this->assign('jumpUrl', __URL__ . '/index');
$this->success('单元,菜单项以及所有相关文章类别已删除~~~~');
} else {
$this->assign('jumpUrl', __URL__ . '/index');
$this->error('删除失败~~~~' . $category->getError());
}
}
