获取未找到记录而不是为foreach（）提供的无效参数 - CodeIgniter

I have the following code in CodeIgniter Controller.It returns the Invalid argument supplied for foreach() error when it enable to retrieve the data from the model. I want to display the "No records found" instead of the Invalid argument.. error .

Here is my full code

Controller

function registered_customers_bod(){
        // get the data and pass to records Variable
        if($query =  $this->mod_reports->registered_customers_bod())
        {
            $data['records'] = $query ;
        }else{
            $data['records'] = 'No records found';
        }
        $data['report_name'] = $this->input->post('report_name');
        // load the view passing data Variable
        $this->load->view('admin/reports/user_reports_bod.html',$data);
    }

View - user_reports_bod

  <?php if (isset($records)) : $i = 1; $delivered_qty_total  = 0;   foreach ($records as $row) : ?>
        <tr>
        <td><?php  echo $i++; ?></td>
        <td><?php  echo $row->cus_id; ?></td>
        <td><?php  echo $row->cus_name; ?></td>
        <td><?php  echo $row->cus_email; ?></td>
        <td><?php  echo $row->cus_phone; ?></td>
        <td><?php  echo $row->cus_mobile; ?></td>
        <td><?php  echo $row->cus_addr_city; ?></td>
        <td><?php  echo $row->user_status; ?></td>
        <td><?php  echo gmdate("Y/m/d", $row->user_timestamp); ?></td>
        </tr>
<?php  endforeach; ?>
<?php  endif; ?>

Model

function registered_customers_bod(){
        $to = new DateTime($this->input->post('to'));
        $from = new DateTime($this->input->post('from'));

        $this->db->select(array(
            'tbl_customer_registration.cus_id',
            'tbl_customer_registration.cus_name',
            'tbl_customer_registration.cus_email',
            'tbl_customer_registration.cus_phone',
            'tbl_customer_registration.cus_mobile',
            'tbl_customer_registration.cus_addr_no',
            'tbl_customer_registration.cus_addr_street',
            'tbl_customer_registration.cus_addr_city',
            'tbl_user_registration.user_status',
            'tbl_user_registration.user_reason_status',
            'tbl_user_registration.user_timestamp',
        ));
        $this->db->from('tbl_customer_registration');
        $this->db->join('tbl_user_registration', 'tbl_user_registration.user_id=tbl_customer_registration.user_id');
        $this->db->group_by("tbl_customer_registration.cus_id"); //view single record that contain two contact numbers
        $this->db->where('user_timestamp >=',$to->getTimestamp());
        $this->db->where('user_timestamp <=',$from->getTimestamp());
        $query = $this->db->get();
        return $query->result();
    }

   if($query =  $this->mod_reports->registered_customers_bod()){
        $data['records'] = $query ;
    }else{
        $data['records'] = new stdClass(); // change here
    }

the reason behind the error is when no record is found from db your $data['records'] is a String and which is surely Invalid argument for foreach()

and instead of isset($records) in view use empty($records)

and put else in view EDIT

$arr = (array)$records;
if(!empty($arr)){
    $i = 1;
    $delivered_qty_total  = 0;
    foreach($records as $row) { ?>
     <tr>
     <td><?php  echo $i++; ?></td>
     <td><?php  echo $row->cus_id; ?></td>
     <td><?php  echo $row->cus_name; ?></td>
     <td><?php  echo $row->cus_email; ?></td>
     <td><?php  echo $row->cus_phone; ?></td>
     <td><?php  echo $row->cus_mobile; ?></td>
     <td><?php  echo $row->cus_addr_city; ?></td>
     <td><?php  echo $row->user_status; ?></td>
     <td><?php  echo gmdate("Y/m/d", $row->user_timestamp); ?></td>
     </tr>
 <?php } ?>
}
else { echo "No records found";}