Correction: "The doc does not explain what request is or was var does"
On Jul 24, 12:01 am, Jared Stunn <[email protected]> wrote: > I know this is really basic but I dont understand. Can somebody please > explain what is happening in the excerpt below. I am doing chapter 3 > of the documentation found > here:http://www.web2py.com/book/default/chapter/03#Postbacks > > Here is my general understanding: > > 1) It appears that we are returning an empty dictionary which > typically should contain a message to be passed through to a view. But > none is provided. > > 2) Is a layout with a form that directs to the controller "second" > that returns an empty dictionary. > > 3) here we have a variable in head 1 that contains > "=request.vars.visitor_name" in the second view. The doc does explain > what request is or does as well as vars. So: > > What is request and its function? What is vars and its function? What > do the dots in between them mean or do? How does "visitor_name" get > passed through to the second view without being passed through one of > the default controllers? > > Here is the excerpt: > > 1) Write the corresponding actions in the default controller: > > def first(): > return dict() > > def second(): > return dict() > > 2) Then create a view "default/first.html" for the first action: > > {{extend 'layout.html'}} > What is your name? > <form action="second"> > <input name="visitor_name" /> > <input type="submit" /> > </form> > > 3) Finally, create a view "default/second.html" for the second action: > > {{extend 'layout.html'}} > <h1>Hello {{=request.vars.visitor_name}}</h1> > > Thank you very much. I am beginner who just switched over from Django > after hearing so many good things about the community and framework.
