how to add query parameters to the current url in view code?

[Cem Ikta]

Hi,

How can I add query parameters to the current url in my view code?

I would like to add new parameters to current url if there are no parameters

for example: http://127.0.0.1:6543/countries/list?sort=code

I am using mako + url dispatch. 

@view_config(route_name="
countries_list", renderer="countries/list.html")
def list(request):
    """countries list """
    if request.GET.get("sort"):
       sort = request.GET.get("sort")
     else:
       # TODO: add new sort parameter in current url ?
    
    dbsession = DBSession()
    countries = dbsession.query(Country).order_by(sort)

     #TODO:how to return current url with new sort parameter ?
    
    return {"countries": countries}


Thanks.
Cem

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