public function getDisplayName()
 {
     $jaccount = Jaccount::where('user_id', '=', $this->id)->first();
     if ($jaccount == NULL) {
         return $this->name;
     } else {
         return $jaccount->real_name;
     }
 }
 /**
  *Redirect to the jaccount site
  */
 public function login()
 {
     $jatkt = Input::get('jatkt');
     $ht = JaHelper::jalogin($jatkt, '/jaccount');
     // $ht = JaHelper::jalogin($jatkt,'/');
     isset($ht['uid']) ? $jaccount_id = $ht['uid'] : exit;
     Session::put('true_name', $ht['chinesename']);
     Session::put('student_id', $ht['id']);
     if (Jaccount::where('account_name', '=', $ht['uid'])->count() == 0) {
         $realName = array_key_exists('chinesename', $ht) ? $ht['chinesename'] : '';
         $snum = array_key_exists('id', $ht) ? $ht['id'] : '';
         $isStudent = array_key_exists('student', $ht) ? $ht['student'] == 'yes' ? 1 : 0 : 0;
         $dept = array_key_exists('dept', $ht) ? $ht['dept'] : '';
         $tel = array_key_exists('tel', $ht) ? $ht['tel'] : '';
         $realName = mb_convert_encoding($realName, 'UTF-8', 'GBK');
         $dept = mb_convert_encoding($dept, 'UTF-8', 'GBK');
         $email = $ht['uid'] . "@sjtu.edu.cn";
         $user = new User();
         $user->name = 'jaccount.' . $ht['uid'];
         $user->password = Hash::make('jaccount.password');
         $user->email = $email;
         $user->type = $isStudent ? 1 : 0;
         $user->group = 1;
         //basic user
         $user->save();
         $jaccount = new Jaccount();
         $jaccount->user_id = $user->id;
         $jaccount->account_name = $ht['uid'];
         $jaccount->real_name = $realName;
         $jaccount->department = $dept;
         $jaccount->student_number = $snum;
         $jaccount->is_student = $isStudent;
         $jaccount->save();
     }
     $credentials = array('name' => 'jaccount.' . $ht['uid'], 'password' => 'jaccount.password');
     Auth::attempt($credentials);
     return Redirect::to('/');
 }