public static function isMember($id, $StudentID)
 {
     $check = GroupPageMember::where('grouppageID', $id)->where('StudentID', $StudentID)->where('delFlag', 0)->first();
     return $check ? true : false;
 }
 public function forceLeave()
 {
     $in = Input::all();
     $isAdmin = GroupPage::isAdmin($in['id'], $in['AccID']);
     $isAssistant = GroupPage::isAssistant($in['id'], $in['AccID']);
     $isMember = GroupPage::isMember($in['id'], $in['AccID']);
     if (!$isAdmin && $isMember) {
         GroupPageMember::where('grouppageID', $in['id'])->where('StudentID', $in['AccID'])->update(array('delFlag' => 1));
         $isAssistant ? GroupPage::where('grouppageID', $in['id'])->update(array('assistantID' => Auth::user()->StudentID)) : '';
     }
 }