/**
* 动作：删除标签
* @return Response
*/
public function deletetag($id)
{
$tag = tag::findOrFail($id);
$tagId = $tag->id;
// 删除关联关系
ArticleTag::where('tag_id', '=', $tagId)->delete();
// 删除标签
if ($tag->delete()) {
return Redirect::back()->with('success', '标签删除成功');
} else {
return Redirect::back()->with('error', '标签删除失败');
}
}
