Including a querystring in a django.core.urlresolvers reverse() call

Question

I\'m trying to reverse a named URL and include a querystring in it. Basically, I\'ve modified the login function, and I want to send ?next= in it.

Here\'s w

Answer 1

To keep the query optional, you can wrap Django's reverse function with your own function that also handles the query, allowing for other proper handling of the reverse function.

Creating a Proper Request - Note that the query_kwargs is optional, so you don't have to send it

# from a views in views.py
def sendingView(request, truckID, fleetSlug):
  #in the GET or POST
  return HttpResponseRedirect(reverse('subAppName:urlViewName', 
                                      kwargs={'anyPassedKawrgs':goHere,…},
                                      query_kwargs={'queries': goHere}
                                      ))

# from a template in specificTemplate.html
Link

#from a model in models.py
class Truck(models.Model):
  name = models.CharField(…)
  def get_absolute_wi_url(self):
    return reverse('subAppName:urlViewName', kwargs={'kwarg1':kwarg1,'kwarg2':kwarg2})

In utils.py file (based on docs) for (1.11 and up?)

-myMainApp
  -apps
  -static
  ...
  -utils
    -__init__.py
    -utils.py

from django.core.urlresolvers import reverse as django_reverse

def reverse(viewname, urlconf=None, args=None, kwargs=None, current_app=None, query_kwargs=None):
  """
  Wrapper of django.core.urlresolvers.reverse that attaches arguments in kwargs as query string parameters
  """
  if query_kwargs:
    return '%s?%s' % (django_reverse(viewname, urlconf, args, kwargs, current_app), \
                    '&'.join(['%s=%s' % (k,v) for k,v in query_kwargs.items()]))
  else:
    return django_reverse(viewname, urlconf, args, kwargs, current_app)

In the urls conf urls.py

app_name = 'subAppName'
urlpatterns = [
  url(r'^(?P[a-zA-Z0-9]+)/(?P[a-zA-Z0-9]+)/path/to/here/$', views.urlViewFunctionName, name='urlViewName'),

And gaining access to the query

#in a view
def urlViewFunctionName(request, kwarg1, kwarg2):   
  if request.GET.get('submittedData'):
    submittedQuery = request.GET.get('submittedData')
else:
  submittedQuery = None
return render(request, 'trucks/weeklyInspectionSuccess.html', {
  'truck': truck,
  'submittedQuery': submittedQuery
})

#in a template
  
  Success for {{kwarg1}}
  {{submittedQuery}}