Python for Entrepreneurs Transcripts
Chapter: Build web apps with Pyramid: Applied web development
Lecture: Concept: Mapping routes to controller actions
0:01 Let's review some of the options we have for mapping action methods on controllers.
0:06 So here you can see we have a HomeController, it has a pyramid_handlers.action decorator on an index.
0:14 Now, this one allows... this particular action method is actually
0:18 processing a form post on the home page.
0:23 So if maybe on your homepage you put a form that has a place
0:28 for like an email address and a button that says "hey, sign up for my newsletter",
0:31 this would receive the email address and actually put them in your newsletter,
0:35 there is very likely a corresponding GET version that shows the homepage
0:39 and that form and so on.
0:41 So over here you can see that we can set the renderer,
0:44 this is probably something you are going to do almost all the time,
0:47 you want to pick some kind of file convention
0:49 I've shown you my templates/controller name
0:52 directory/action name file convention and that works very well for me,
0:58 so we are going to specify this here and then notice,
1:00 we are actually setting the request method, so this method will only be called
1:04 if there is an HTTP post to that URL that we've mapped it to,
1:08 if there is a GET, there is some other not-shown method that is run,
1:11 so here we can filter by request method,
1:14 in Python you can't have method overloading by parameter,
1:19 there is only one method with the given name in any given class
1:22 or outside of any given class in a particular module.
1:25 So we can't have like index and then have some parameters
1:29 and then an index and a get, so here we are actually setting the name
1:33 to allow us to have an index_post and an index_get.