Question

我已经订购了＃39;包含ID，日期等订单详细信息的表格以及表格＆＃39; order_products＆＃39;包含（order_id，product_id）

我想创建一个SELECT，它将返回包含所有产品id的内部数组的数组

示例：$ array =（id，date，...，array products（id1，id2 ...））

这是我的代码：

public function get_order_single($id)
{
     $query = $this->db->select( '
                orders.id,
                orders.customer_id AS customerID,
                orders.date,
                orders.payment_method AS paymentMethod,
                orders.total_price AS totalPrice,
                orders.delivery_address AS address,
                orders.modified,
                orders.created')
                ->from( 'orders' )
                ->where('id',$id)
                ->get()
                ->result( 'array' );    
    return $query[0];
}

我需要添加什么才能从第二个表中获取所有信息？

Answer 1

public function get_order_single($id)
{
    // Get your order
    $order = $this->db->select('
            orders.id,
            orders.customer_id AS customerID,
            orders.date,
            orders.payment_method AS paymentMethod,
            orders.total_price AS totalPrice,
            orders.delivery_address AS address,
            orders.modified,
            orders.created')
        ->from('orders')
        ->where('id', $id)
        ->get()
        ->row();

    // If order is exists, lets find products for it
    if ($order) {
        // Here we do a join also to your pivot table
        $order->products = $this->db
            ->where_in('order_products.order_id', $order->id)
            ->join('order_products', 'order_products.product_id = products.id', 'left')
            ->get('products')
            ->result();
    }

    return $order;
}

Answer 2

尝试做这样的事情：

$this->db->select('name, value'); // SELECT which columns you want
$this->db->join('attribute', 'attribute.id = product_attribute.attribute_id', 'left'); // JOIN 1st table
$this->db->join('attribute_value', 'attribute_value.attribute_id = product_attribute.attribute_id', 'left'); // JOIN 2nd table
$this->db->where('product_id', $id); // CONDITION
$query = $this->db->get('product_attribute'); // FROM clause
return $query->result();

使用codeigniter选择多个表

2 个答案: