laravel模型的一些特性

1模型复制

replicate方法可以保存一个新的模型副本,例如:
此处的$user与$NewUser,$shipping与$NewShipping的基本数据是一致的
$user = \App\User::find(1);
$newUser = $user->replicate();
$newUser->save();

$shipping = App\Address::create([
    'type' => 'shipping',
    'line_1' => '123 Example Street',
    'city' => 'Victorville',
    'state' => 'CA',
    'postcode' => '90001',
]);
$NewShipping=$shipping->replicate();

2模型校验

is方法可以校验两个模型实例是否拥有相同的主键,表，数据库连接
$user=\App\User::find(1);
$sameUser=\App\User::find(1);
$diffUser=\App\User::find(2);
$user->is($sameUser);//true
$user->is($diffUser);//false