HY000-2014-当其他未缓冲的查询处于活动状态时，无法执行查询 - HY000 - 2014 - Cannot execute queries while other unbuffered queries are active

HY000 - 2014 - Cannot execute queries while other unbuffered queries are active

语句无法执行（HY000-2014-当其他未缓冲的查询处于活动状态时无法执行查询。请考虑使用PDOStatement:：fetchAll（）。或者，如果你的代码只针对mysql运行，你可以通过设置PDO:：mysql_ATTR_USE_BUFFERED来启用查询缓冲。我在zf2中运行操作时遇到了这个错误，如何解决这个问题

{$assSub=$this->getTblInstitutesDepartmentsTable（）->getAssignedDetails（$urlassId）；

$request=$this->getRequest（）；

    if($request->isPost()){
       $submittedArray = $request->getPost()->toArray();
       $remarks = $submittedArray['remark'];
       $grades  = $submittedArray['grade'];
       $submittedChk =$submittedArray['submitted'];      
       foreach ($submittedChk as $submitted){ 
             $chksubmitted = 1;                 
             $remark = $remarks[$submitted];    
             $grade  = $grades[$submitted];
                $submittedObj =  new TblInstitutesDepartmentModel(array('asid' => $sub,'gd_id' => $grd,'rem' => $rem,'is_sub' => $chksub,'sub_date'=>date('Y-m-d')));                    
                $this->getTblInstitutesDepartmentsTable()->updateAssigned($submittedObj);        }           
    }      
    $view = new ViewModel(array(          
        'assStd'  => $assSub,          
        'flashMessages'     => $this->flashMessenger()->getMessages()
            )
    );

我只需要调用$this->getTblInstitutesDepartmentsTable（）->getAssignedDetails（$urlassId）this来查看模型

//$assSub=$this->getTblInstitutesDepartmentsTable（）->getAssignedDetails（$urlassId）

$request=$this->getRequest（）
if（$request->isPost（））｛

   $submittedArray = $request->getPost()->toArray();
   $remarks = $submittedArray['remark'];
   $grades  = $submittedArray['grade'];
   $submittedChk =$submittedArray['submitted']; 
   foreach ($submittedChk as $submitted){ 
         $chksubmitted = 1;     
         $remark = $remarks[$submitted]; 
         $grade  = $grades[$submitted];
            $submittedObj =  new TblInstitutesDepartmentModel(array('asid' => $sub,'gd_id' => $grd,'rem' => $rem,'is_sub' => $chksub,'sub_date'=>date('Y-m-d'))); 
            $this->getTblInstitutesDepartmentsTable()->updateAssigned($submittedObj);        }           
}      
$view = new ViewModel(array(          
    //'assStd'  => **$assSub**,
      'assStd'  =>  $this->getTblInstitutesDepartmentsTable()->getAssignedDetails($urlassId),       
    'flashMessages'     => $this->flashMessenger()->getMessages()
        )
);