Arguments disappear from a dictionary when passed to a function
In my function I read user's data from session and store them in a dictionary. Next I'm sending it to 'register' function from registration.backend but the function somehow get's it empty and a KeyError is thrown. Where are my data gone ? The code from function calling 'register' function :
data = request.session['temp_data']
email = data['email']
logging.debug(email)
password1 = data['password1']
userdata = {'email': email, 'password1': password1}
logging.debug(userdata)
backend = request.session['backend']
logging.debug(backend)
user = backend.register(userdata)
And the register function (whole source here : http://bitbucket.org/ubernostrum/django-registration/src/tip/registration/backends/default/init.py ) :
class DefaultBacke开发者_Go百科nd(object):
def register(self, request, **kwargs):
logging.debug("backend.register")
logging.debug(kwargs)
username, email, password = kwargs['email'], kwargs['email'], kwargs['password1']
Debug after invoking them :
2010-07-09 19:24:35,020 DEBUG my@email.com
2010-07-09 19:24:35,020 DEBUG {'password1': u'a', 'email': u'my@email.com'}
2010-07-09 19:24:35,020 DEBUG <registration.backends.default.DefaultBackend object at 0x15c6090>
2010-07-09 19:24:35,021 DEBUG backend.register
2010-07-09 19:24:35,021 DEBUG {}
Why the data could be missing ? Am I doing something wrong ?
@edit for Silent-Ghost
register() takes exactly 2 arguments (3 given)
112. backend = request.session['backend']
113. logging.debug(backend)
114. user = backend.register(request, userdata)
No need to mess with **
in register
method. What you want to do is simply pass dictionary to register
method:
user = backend.register( request, userdata ) # you need to pass request as definition says
def register( self, request, userdata ): # note lack of **
logging.debug("backend.register")
logging.debug( userdata ) # should work as expected
username, email, password = userdata['email'], userdata['email'], userdata['password1']
Judging by the method's signature:
- you need to unpack your dictionary
- you need to pass relevant
request
variable
Something like this:
backend.register(request, **userdata)
Assuming register
is a method on backend
instance.
this perfectly work
class Logging():
def debug(self,f):
print f
class DefaultBackend(object):
def register(self, request, **kwargs):
logging.debug("backend.register")
logging.debug(kwargs)
username, email, password = kwargs['email'], kwargs['email'], kwargs['password1']
class Request:
def __init__(self):
self.session = {}
request = Request()
logging=Logging()
request.session['temp_data']={'password1': u'a', 'email': u'my@email.com'}
request.session['backend']=DefaultBackend()
data = request.session['temp_data']
email = data['email']
logging.debug(email)
password1 = data['password1']
userdata = {'email': email, 'password1': password1}
logging.debug(userdata)
backend = request.session['backend']
logging.debug(backend)
user = backend.register(request,**userdata)
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