Codeigniter：如何更新不會影響特定列的金額

Question

嗨，大家好，我在模型中的查詢中遇到問題，我會在解釋它之前向您顯示代碼。

for($x = 1; $x <= count($this->input->post('subparticulars')); $x++) { 

    $feetype = $this->input->post('subparticulars')[$x]; 
    $student = $this->input->post('substudentid'); 
    $schoolyear = $this->input->post('subschoolyeardata'); 
    $month = $this->input->post('month'); 

    $payment = $this->input->post('subpaymentamount')[$x]; 

    $this->db->set('statement_amount', '`statement_amount` -'. $payment, FALSE); 

    $this->db->where(array('feetype_id !=' => 2, 'feetype_id !=' => 3, 'feetype_id' => $feetype, 'student_id' => $student, 'schoolyear_id' => $schoolyear, 'month_id' => $month)); 

    $status3 = $this->db->update('tbl_statement'); 
} 

這裏我有它有一個附加的動態添加行功能包含量和subparticulars和subpayments多支付的細節，我運行一個查詢，將減去我支付我的statement_amounts，你可以看到在$ this-> db-> set中。現在，我有一個問題，我的where子句，如果你會試圖瞭解我的where子句，這是條件。

我想更新除了footype_id：2和3之外的所有費用，但其他feetype_id將會更新，我該如何實現這一點。當我運行的代碼仍然會扣除所有feetype_id的2和3

Answer 1

這裏的正確答案

for($x = 1; $x <= count($this->input->post('subparticulars')); $x++) { 

    $feetype = $this->input->post('subparticulars')[$x]; 
    $student = $this->input->post('substudentid'); 
    $schoolyear = $this->input->post('subschoolyeardata'); 
    $month = $this->input->post('month'); 

    $payment = $this->input->post('subpaymentamount')[$x]; 

    if ($feetype == 2 OR $feetype == 3) 
    { 
     $this->db->set('statement_amount', '`statement_amount` -'. $payment, FALSE); 

     $this->db->where(array('feetype_id' => $feetype, 'student_id' => $student, 'schoolyear_id' => $schoolyear)); 

     $status3 = $this->db->update('tbl_statement'); 
    }   
    else { 
     $this->db->set('statement_amount', '`statement_amount` -'. $payment, FALSE); 

     $this->db->where(array('feetype_id' => $feetype, 'student_id' => $student, 'schoolyear_id' => $schoolyear, 'month_id' => $month)); 

     $status3 = $this->db->update('tbl_statement'); 
    }  
} 

的費用