PATCH和PUT请求不适用于表单数据 [英] PATCH and PUT Request Does not Working with form-data

问题描述

我正在使用Laravel创建RESTFUL应用程序，并使用Postman测试该应用程序.当前，如果从邮递员发送的带有表单数据的数据存在PATCH或PUT的问题.

I am using Laravel to create a RESTFUL application and I test the application with Postman. Currently, there is an issue for PATCH or PUT if the data sent from Postman with form-data.

// Parameter `{testimonial}` will be sent to backend.
Route::post  ('testimonials/{testimonial}', 'TestimonialController@update');

// Parameter `{testimonial}` will not be sent to backend (`$request->all()` will be empty) if sent from Postman with form-data.
Route::patch ('testimonials/{testimonial}', 'TestimonialController@update');
Route::put   ('testimonials/{testimonial}', 'TestimonialController@update');

• 使用表单数据，$request->all()对于POST没问题.
• 使用x-www-form-urlencoded，$request->all()对于PATCH，PUT和POST都是可以的.
• 但是，如果我从邮递员发送带有表单数据的PUT和PATCH，则$request->all()将为空(参数将不会发送到后端).
• Using form-data, $request->all() will be okay for POST.
• Using x-www-form-urlencoded, $request->all() will be okay for PATCH, PUT, and POST.
• However, if I am sending PUT and PATCH with form-data from Postman, the $request->all() will be empty (the parameters will not be sent to backend).

现在，解决方案是使用POST来更新模型.我想知道为什么PATCH和PUT在与Postman的表单数据一起发送时不起作用.

Right now the solution is to use POST for updating a model. I want to know why PATCH and PUT is not working when sent with form-data from Postman.

推荐答案

根据以下Github，这是一个已知问题和解决方法建议

This is a known issue and the workaround suggestion as per the following Github comment is that when sending a PATCH / PUT requests you should do the following:

您应该发送POST并将_method设置为PUT(与发送表单相同)以使文件可见

You should send POST and set _method to PUT (same as sending forms) to make your files visible

因此，从本质上讲，您发送的POST请求带有用于设置实际方法的参数，Laravel似乎理解这一点.

So essentially you send a POST request with a parameter which sets the actual method and Laravel seems to understand that.

根据文档:

由于HTML表单无法发出PUT，PATCH或DELETE请求，因此您需要添加一个隐藏的_method字段来欺骗这些HTTP动词. @method Blade指令可以为您创建此字段:

Since HTML forms can't make PUT, PATCH, or DELETE requests, you will need to add a hidden _method field to spoof these HTTP verbs. The @method Blade directive can create this field for you:

<form action="/foo/bar" method="POST">
    @method('PUT')

    ...
</form> 

或者，您可以使用 method_field 帮助函数来执行以上操作:

Alternatively, you can use the method_field helper function to do the above:

method_field函数生成一个HTML隐藏的输入字段，其中包含表单的HTTP动词的欺骗值.例如，使用Blade语法:

The method_field function generates an HTML hidden input field containing the spoofed value of the form's HTTP verb. For example, using Blade syntax:

<form method="POST">
    {{ method_field('PUT') }}
</form>

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