使用Ignited-Datatables類的codeigniter陷入連接

Question

我在codeigniter中使用此庫

https://github.com/IgnitedDatatables/Ignited-Datatables/blob/master/application/libraries/Datatables.php

以及內部聯接實際存在問題，所有聯接都不對我有用。

$this->load->library('datatables');
   $this->datatables
        ->select("id, date, customer_name, inv_total, total_tax, total_discount, 
                total, paid_by, cf1, cf2")
        ->from('sales')
        ->join('customers', 'customers.id=sales.customer_id', 'INNER')
        ->unset_column('id');
         echo $this->datatables->generate();

cf1和cf2在客戶表中，我想檢索那些

Answer 1

由於您正在使用內部聯接，並且兩個表都包含名為id的字段，因此mysql對於字段歧義會返回錯誤。 因此，您應該通過tablename.feildname引用此類字段。

 $this->datatables
        ->select("sales.id, date, customer_name, inv_total, total_tax, total_discount, 
                total, paid_by, cf1, cf2")
        ->from('sales')
        ->join('customers', 'customers.id=sales.customer_id', 'INNER')
        ->unset_column('sales.id');
         echo $this->datatables->generate();

Answer 2

試試這些。

注意：您未在選擇查詢中包括客戶表名稱。

$this->load->library('datatables');
$this->datatables
    ->select("id, date, customer_name, inv_total, total_tax, total_discount, total, paid_by, customers.cf1, customers.cf2")
    ->from('sales')
    ->join('customers', 'customers.id=sales.customer_id', 'INNER')
    ->unset_column('id');
     echo $this->datatables->generate();