我有以下表格:
Customer
id
Order
id
customer_id
Order_notes
order_id
note_id
Notes
id
如果我想获得客户的所有订单备注,那么我可以执行以下操作,我该怎么办?有没有办法在我的模型中定义一个关系,通过多个数据透视表来加入客户订购笔记?
@if($customer->order_notes->count() > 0)
@foreach($customer->order_notes as $note)
// output note
@endforeach
@endif
最佳答案 在模型上创建这些关系.
class Customer extends Model
{
public function orders()
{
return $this->hasMany(Order::class);
}
public function order_notes()
{
// have not tried this yet
// but I believe this is what you wanted
return $this->hasManyThrough(Note::class, Order::class, 'customer_id', 'id');
}
}
class Order extends Model
{
public function notes()
{
return $this->belongsToMany(Note::class, 'order_notes', 'order_id', 'note_id');
}
}
class Note extends Model
{
}
您可以使用此查询获取关系:
$customer = Customer::with('orders.notes')->find(1);