Django HttpResponseRedirect and NoReverseMatch - django

Question

I am trying to redirect to a new form page whose fields get automatically filled with the data sent from the view function.
My urls.py is:
url(r"user_dashboard/NewRequest/([\{.*\}])", views.request_form, name = "NewRequest")
The view function which is sending the data is present at:
url(r"user_dashboard/NReq", views.request_request, name="NReq"),
which calls the above url.
The return statement from my view function is:
return HttpResponseRedirect(reverse(request_form, kwargs={"device_type":devicetype}))
But, I get the following error:
NoReverseMatch at /user_dashboard/NReq
Reverse for 'inventory_management_app.views.request_form' with keyword arguments '{u'device_type': u'Laptop'}' not found. 1 pattern(s) tried: ['user_dashboard/NewRequest/([\\{.*\\}])']
Request Method: POST
Request URL: http://127.0.0.1:8000/user_dashboard/NReq
Django Version: 1.11.13
Exception Type: NoReverseMatch
Exception Value:
Reverse for 'inventory_management_app.views.request_form' with keyword arguments '{u'device_type': u'Laptop'}' not found. 1 pattern(s) tried: ['user_dashboard/NewRequest/([\\{.*\\}])']
Exception Location: C:\Anaconda2\lib\site-packages\django\urls\resolvers.py in _reverse_with_prefix, line 497
Python Executable: C:\Anaconda2\python.exe
Python Version: 2.7.14
Python Path:
['E:\\inventory management\\inventory_management_service',
'C:\\Anaconda2\\python27.zip',
'C:\\Anaconda2\\DLLs',
'C:\\Anaconda2\\lib',
'C:\\Anaconda2\\lib\\plat-win',
'C:\\Anaconda2\\lib\\lib-tk',
'C:\\Anaconda2',
'C:\\Users\\Jaimik Jain\\AppData\\Roaming\\Python\\Python27\\site-packages',
'C:\\Anaconda2\\lib\\site-packages',
'C:\\Anaconda2\\lib\\site-packages\\win32',
'C:\\Anaconda2\\lib\\site-packages\\win32\\lib',
'C:\\Anaconda2\\lib\\site-packages\\Pythonwin',
'C:\\Anaconda2\\lib\\site-packages\\pywinpty-0.5-py2.7-win-amd64.egg']
Server time: Wed, 6 Jun 2018 07:48:44 +0000
Can anyone please tell me what's wrong present in the above code?

Answer 1

Instead of the following regex expression url(r"user_dashboard/NewRequest/([\{.*\}])", views.request_form, name = "NewRequest") in your URL:
try with re group name:
url(r"user_dashboard/NewRequest/(?P<device_name>\w.+)", views.request_form, name = "NewRequest")
Make sure you have device_name as a default argument in your view
def request_form(request,device_name=''):
'''