在更新时，我的条件不起作用

Question

In my first table(ts_users) update opening user_opening_balance at the same time, I want to update that user_opening_balance in my second table(ts_voucher) column is voucher_amount . But in my second table table(ts_voucher) voucher_amount updates all columns amount.

My code:

public function updateConsignor($myData){
      extract($myData);

      $this->db->set('user_full_name' , $user_full_name);
      $this->db->set('user_opening_balance' , $user_opening_balance);

    $this->db->where('user_id', $user_id);

      if($this->db->update('ts_users')){

         $userId      = $myData['user_id'];
          $this->db->trans_begin();
                                $openingBalTrxn = array(
                                'voucher_amount'               => $myData['user_opening_balance'],
                                );

          $this->db->update('ts_voucher', $openingBalTrxn);
          $this->db->where('voucher_person_account_id',$userId);

            if ($this->db->trans_status() === false){
                      $this->db->trans_rollback();
                      return false;
             }else{
                      $this->db->trans_commit();
                      return true;
                  }

           return $query_result;

           return true;
      }else{

        return false;
      }

    }

I am giving where condition

$this->db->update('ts_voucher', $openingBalTrxn);
$this->db->where('voucher_person_account_id',$userId);

for update one record it updates all voucher_amount column record

Answer 1

you need to run first your .where before your .update . See documentation here

$this->db->where('voucher_person_account_id',$userId);
$this->db->update('ts_voucher', $openingBalTrxn);

Answer 2

Your update query false. where clause first and other condition where first than update function call just copy this function and fix your problem.

public function updateConsignor($myData){
  extract($myData);

  $this->db->set('user_full_name' , $user_full_name);
  $this->db->set('user_opening_balance' , $user_opening_balance);

$this->db->where('user_id', $user_id);

  if($this->db->update('ts_users')){

     $userId      = $myData['user_id'];
      $this->db->trans_begin();
                            $openingBalTrxn = array(
                            'voucher_amount'               => $myData['user_opening_balance'],
                            );
      $this->db->where('voucher_person_account_id',$userId);
      $this->db->update('ts_voucher', $openingBalTrxn);

         if ($this->db->trans_status() === false){
                  $this->db->trans_rollback();
                  return false;
         }else{
                  $this->db->trans_commit();
                  return true;
              }

       return $query_result;

       return true;
  }else{

    return false;
  }

Answer 3

Your update operation is working before the 'where' condition has a chance to work. That's why it's updating all records. Simply put the where condition first, then update.