我有两张桌子:
orders:
orderid customer_id amount
1 5 1
2 5 2
3 8 3
4 5 11
5 8 45
6 11 23
7 11 2
orders_items:
id orderid item quantity
1 1 'item1' 1
2 1 'item2' 2
3 2 'item1' 1
4 3 'item1' 3
5 3 'item2' 1
6 3 'item3' 1
现在我想获取每个订单的信息,包括每个订单的所有不同商品。我用:
$this->db->select()->from('orders')->join('orders_items', 'orders.orderid = orders_items.orderid' );
$query = $this->db->get();
$result_array = $query->result_array();
然而,这给了我每个订单只有最后一项的数组。我究竟做错了什么?我的最终数组应该是这样的:
Array
(
[0] => Array
(
[orderid] => 49
[customerid] => 2
[amount] => 438.00
[id] => 63
array(
array(
[item] => Service1
[quantity] => 22
[subtotal] => 439
),
array(
[item] => Service2
[quantity] => 22
[subtotal] => 439
)
)
)
我该怎么做?