[mod_python] HTML form arrays

Jean-Philippe Barrette-LaPierre jpbarrette at savoirfairelinux.net
Wed Sep 1 17:09:29 EDT 2004

I already sent the question but nobody answered, so I'm sending this question 

if I have a form like this:

<form action="form/test" method="POST">
	<input type="text" name="customer[test]"/>
	<input type="submit"/>

and if I have a form.py file like this:

def test(customer, **kargs):
	print customer

if I submit the form I obtain this:

Mod_python error: "PythonHandler mod_python.publisher"

Traceback (most recent call last):

  File "/usr/lib/python2.3/site-packages/mod_python/apache.py", line 299, in 
    result = object(req)

  File "/usr/lib/python2.3/site-packages/mod_python/publisher.py", line 136, 
in handler
    result = util.apply_fs_data(object, req.form, req=req)

  File "/usr/lib/python2.3/site-packages/mod_python/util.py", line 361, in 
    return object(**args)

TypeError: test() takes exactly 1 non-keyword argument (0 given)

If I remove the customer argument, I can see that kargs is this:

{'customer[test]': 'myValue', 'req': <mp_request object at 0x4075fa18>}

We can see that form arrays are not treated as they should. I wrote a function 
that will transform those arguments:

{'customer[test]' : 'myValue1',
  'customer[test2][1] : 'myValue2',
  'customer[test3][1][3] : 'myValue3',
  'test' : 'myValue4'}


{'customer' : {'test' : 'myValue1', 
                       'test2' : {'1' : 'myValue2'}, 
                       'test3' : {'1' : {'3' : 'myValue3'} } },
  'test' : 'myValue4'}

Then those values will be almost ready to be passed to the apply_fs_data 
function and the form function will receive correctly its arguments.

What do you think of this?

Jean-Philippe Barrette-LaPierre
Maintener of cURLpp

Jean-Philippe Barrette-LaPierre
Maintener of curlpp

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