jquery post url parameters comparison with python not working

Question

Iam using jquery AJAX request using post methid to send parameters to tornado server and did something like this:

$.ajax({
    type: "POST",
    url: "/leave_action?id=" + rowid.id + "&action=" + param,
    dataType: "json",
    async: false
  })

But when I'm comparing using python, it is not working:

action = str(self.get_query_argument("action"))
print action  #here am getting either approve or decline 
  if action == "approve":
     print "approved"
  elif action == "decline":
     print "declined"

I tried with is also but no luck.

I also tried with:

      action = self.get_query_argument("action")
      a=action.encode('ascii','ignore')

but no use.

Answer 1

There is some points you better to know ! The Tornado is a MVC based framework that let you have a lot of things in your hand.

So, you can set URL pattern instead using query string. that's mean you don't need to get value with self.get_query_argument() or self.get_argument().

For URL:

application = tornado.web.Application([
    (r'^(?i)/leave_action/([\w+^/])/([\w+^/])[/]?$', YourLeaveActionHandler)
], **settings)

or even:

application = tornado.web.Application([
    (r'/leave_action/(id)/(approve|decline)', YourLeaveActionHandler, None, "this_url_name")
], **settings)

The second URL pattern is better a bit. because we emphasize expressly the first group should be id and the second group should approve OR decline.

And in your handler:

class YourLeaveActionHandler(tornado.web.RequestHandler):
    def get(self, id, action):
        print id
        print action

    def post(self, id, action):
        print id
        print action

        if action == "approve":
            print "approved"
        elif action == "decline":
            print "declined"

In your handler , the action should be approve OR decline and anything else expect these not accepted in this handler. So you can easily compare the action value.

• And you should note this,sometimes when you using POST method, the query string maybe ignored by tornado.