Laravel形式模型绑定 [英] Laravel form model binding
问题描述
我一直在阅读此功能： http://laravel.com/docs/html#form-模型绑定
I've been reading about this feature: http://laravel.com/docs/html#form-model-binding
它看起来真的很整洁，但有几件事我不确定。
And it looks really neat, but there are couple of things that I'm not certain about.
我需要将任何代码放在控制器操作中以处理此表单？这是什么样子？
Do I need to put any code in the controller action to process this form? What does that look like?
我想以我的形式绑定的模型（用户）有一个单独的地址表。所以我想要填写用户模型的字段，也可以填写相关的地址模型的字段。我可以使用表单模型绑定吗？或者我必须手动处理表单？
The model (User) I want to bind in my form has a separate table for addresses. So I want to be able to fill out the User model's fields, but also the fields for the related Address model. Can I do that with form-model-binding, or do I have to handle the form manually?
否则，我可以为用户使用表单模型绑定字段，但手动处理地址字段？
Or, failing that, can I use form model binding for the user fields, but manually handle the address fields?
推荐答案
您的控制器中不需要任何不同的代码来处理此表单。所有的（命名的）表单变量都将在Input :: all（）中。
You don't need any different code in your controller to process this form. All your (named) form variables will be in Input::all().
您传递的模型（$ user）
The model ($user) you pass in
Form::model($user, array('route' => array('user.update', $user->id)))
只要你有任何记录，如果你有多个表，你必须做一些像
Is just any record you need to, if you have more than one table involved, you'll have to do something like
$user = User::where('id',$userID)
->leftJoin('users_addresses', 'users_addresses.user_id', '=', 'users.id')
->first();
并将这个组合模型传递给Form :: model（）。
And pass this composed model to your Form::model().
您的输入名称完全取决于您，因为您必须编写逻辑来处理您的表单。但是，在我看来，对于地址输入来说， users_address [street] 是很好的，因为你会得到一个地址列数组，你可以立即将它们传递给你的UserAddress模型。
How you name your inputs is entirely up to you, because you'll have to write the logic to process your form. But, in my opinion users_address[street] for the address inputs is good, because you'll end up with an array of addresses columns that you can pass right away to your UserAddress model.
<html>
<head>
<title></title>
</head>
<body>
{{ Form::model($user, array('route' => array('user.update', $user->id))) }}
{{ Form::label('first_name', 'First Name:', array('class' => 'address')) }}
{{ Form::text('first_name') }}
{{ Form::label('last_name', 'Last Name:', array('class' => 'address')) }}
{{ Form::text('last_name') }}
{{ Form::label('email', 'E-Mail Address', array('class' => 'address')) }}
{{ Form::text('email') }}
{{ Form::label('address[street1]', 'Address (Street 1)', array('class' => 'address')) }}
{{ Form::text('address[street1]') }}
{{ Form::label('address[street2]', 'Address (Street 2)', array('class' => 'address')) }}
{{ Form::text('address[street2]') }}
{{ Form::label('ddress[city]', 'City', array('class' => 'address')) }}
{{ Form::text('address[city]') }}
{{ Form::label('address[state]', 'State', array('class' => 'address')) }}
{{ Form::text('address[state]') }}
{{ Form::label('address[zip]', 'Zip Code', array('class' => 'address')) }}
{{ Form::text('address[zip]') }}
{{ Form::submit('Send this form!') }}
{{ Form::close() }}
</body>
</html>
如果你执行 dd（Input :: all（） code>在你的控制器，你会得到这样的：
And if you do dd( Input::all() ) in your controller, you'll get something like this:
此结果由Kint的dd（）提供： https://github.com/raveren/kint 。真的很有帮助。
如果您的表单只有一个模型的字段，您的更新方法可能非常简单，如下所示：
If your form just have fields from a single Model, your update method can be very simple and look something like:
public function update($id)
{
$user = User::find($id);
if (!$user->update(Input::all())) {
return Redirect::back()
->with('message', 'Something wrong happened while saving your model')
->withInput();
}
return Redirect::route('user.saved')
->with('message', 'User updated.');
}
在形式上有点复杂，编码人员将不得不添加更多的逻辑他们的控制器，在你的情况下，有一点更多的研究我认为你可以使这种情况发生：
On forms a little bit more complex, coders will have to add more logic to their controllers, in you case with a little bit more of research I think you can make this happen:
public function update($id)
{
$user = User::find($id);
$inputs = Input::all();
if (!$user->update($inputs)) {
$address = new UserAddress($inputs['address']);
$user->address()->save($address);
...
}
...
}
这篇关于Laravel形式模型绑定的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
