Laravel 5 eloquent 包括来自第二个连接表的外键的另一个表的行

Question

我有 3 个示例模型

1. 客户

   身份证

2. 订购

   身份证

   customer_id

   deliver_address_id

3. 客户地址

   身份证 customer_id

   街道

   国家

客户可以在个人资料中保存多个地址，但每个订单只能选择一个地址。

我想使用 laravel 5 eloquent 在一次查询中获取包括地址在内的所有客户订单。我是 laravel 的新手，所以很难查询复杂的关系表。

Answer 1

class Customer extends Model {

    $table = 'customers';

    function addresses(){
        return $this->hasMany(Address::class, 'customer_id');
    }

    function orders(){
        return $this->hasMany(Order::class, 'customer_id');
    }

}

class Order extends Model {

    $table = 'orders';

    function address(){
        return $this->belongsTo(Address::class, 'address_id');
    }

    function customer() {
        return $this->belongsTo(Customer::class, 'customer_id');
    }
}

class Address extends Model{

    $table = 'customer_addresses';

    function customer(){
        return $this->belongsTo(Customer::class, 'customer_id');
    }

}


TABLES : 
1 customers

        id

2 orders

        id

        customer_id

        address_id

3 customer_addresses

        id

        customer_id

        street

        country