更改werkzeug请求对象上的值 [英] Changing values on a werkzeug request object

问题描述

我有一个来自werkzeug的请求对象.我想更改此请求对象的值.这是不可能的，因为werkzeug请求对象是不可变的.我了解这个设计决定，但是我需要更改一个值.我该怎么做?

I have a request object that comes from werkzeug. I want to change a value on this request object. This is not possible because werkzeug request objects are immutable. I understand this design decision, but I need to change a value. How do I do this?

>>> request
<Request 'http://localhost:5000/new' [POST]>
>>> request.method
'POST'
>>> request.method = 'GET'
*** AttributeError: read only property

我尝试执行deepcopy，但是结果副本也是不可变的.我想我可以创建自己的模拟对象并手动填写值，但这是我的最后选择.有更好的方法吗?

I tried doing a deepcopy, but the resulting copy is immutable also. I guess I could just create my own mock object and fill in the values manually, but that is my last resort solution. Is there a better way?

推荐答案

这是我想出的:

def make_duplicate_request(request):
    """
    Since werkzeug request objects are immutable, this is needed to create an
    identical request object with mutable values
    """
    class Req(object):
        method = 'GET'
        path = ''
        headers = []
        args = []
    r = Req()
    r.path = request.path
    r.headers = request.headers
    r.is_xhr = request.is_xhr
    r.args = request.args
    return r

也许不是最优雅的解决方案，但是它可以工作.

Maybe no the most elegant solution, but it works.

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