笨：模型

Question

更新多行我讀過類似的問題和答案，仍然沒有想法，所以不要拍:)

我想這一點：

Array ([0] => Array ([id] => 3 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P) [1] => Array ([id] => 4 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P)) 

$this->db->update_batch('credit_statement', $data, 'id'); 

和回報：

A Database Error Occurred 
You must use the "set" method to update an entry. 

，並認爲我尊重笨書：

$data = array(
    array(
     'title' => 'My title' , 
     'name' => 'My Name 2' , 
     'date' => 'My date 2' 
    ), 
    array(
     'title' => 'Another title' , 
     'name' => 'Another Name 2' , 
     'date' => 'Another date 2' 
    ) 
); 

$this->db->update_batch('mytable', $data, 'title'); 

// Produces: 
// UPDATE `mytable` SET `name` = CASE 
// WHEN `title` = 'My title' THEN 'My Name 2' 
// WHEN `title` = 'Another title' THEN 'Another Name 2' 
// ELSE `name` END, 
// `date` = CASE 
// WHEN `title` = 'My title' THEN 'My date 2' 
// WHEN `title` = 'Another title' THEN 'Another date 2' 
// ELSE `date` END 
// WHERE `title` IN ('My title','Another title') 

我在做什麼錯？

Answer 1

當您在update_batch方法中調用它時，您尚未設置$ data變量。

更改此：

Array ([0] => Array ([id] => 3 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P) [1] => Array ([id] => 4 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P)) 

要這樣：

$data = Array ([0] => Array ([id] => 3 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P) [1] => Array ([id] => 4 [paid_date] => 2013-06-25 20:37:35 [statement_status] => P));