表的结构如下:
REATE TABLE `carts` (
`user_id` int(10) unsigned NOT NULL,
`product_id` char(64) NOT NULL,
`quantity` int(10) unsigned NOT NULL,
`created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`user_id`,`product_id`),
KEY `fk_idx_cart_product` (`product_id`),
CONSTRAINT `fk_idx_cart_product` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`),
CONSTRAINT `fk_idx_cart_user` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
需要用Eloquent ORM的save()方法,他会根据primaryKey来保存数据,请问如何在Model设置这种复合主键?
/**
* The primary key for the model.
*
* @var string
*/
protected $primaryKey = 'id';
$cart = Cart::firstOrNew([...]);
$cart->quantity = $quantity;
$cart->save();
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'id' in 'where clause'
表的结构如下:
REATE TABLE `carts` (
`user_id` int(10) unsigned NOT NULL,
`product_id` char(64) NOT NULL,
`quantity` int(10) unsigned NOT NULL,
`created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`user_id`,`product_id`),
KEY `fk_idx_cart_product` (`product_id`),
CONSTRAINT `fk_idx_cart_product` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`),
CONSTRAINT `fk_idx_cart_user` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
需要用Eloquent ORM的save()方法,他会根据primaryKey来保存数据,请问如何在Model设置这种复合主键?
/**
* The primary key for the model.
*
* @var string
*/
protected $primaryKey = 'id';
$cart = Cart::firstOrNew([...]);
$cart->quantity = $quantity;
$cart->save();
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'id' in 'where clause'
这个问题没有解决,大部分别的框架也没有解决,所以暂时没有办法在Eloquent ORM 定义复合主键,解决办法:
1.使用doctrine。
2.在表单验证里面做验证,也能达到主键约束的效果。
关于这个问题其实在一年前就有国外的程序员在github上提了issue的,并且taylorotwell还参与了讨论,他给出的回复是laravel目前没有计划增加这个功能。直到今天(2015.11.07)都没有这个功能。详情请见以下链接:https://github.com/laravel/framework/issues/5355
已抢66899个
抢已抢39474个
抢已抢21882个
抢已抢2776个
抢已抢3205个
抢已抢19393个
抢