Building Data-Driven Web Apps with Pyramid and SQLAlchemy Transcripts
Chapter: Routing and URLs
Lecture: Concept: Using the routes
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All right, let's real quickly
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review using the routes
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creating and using the routes.
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So, we start out going to config
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this is in __init__.py
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Go here and we say add route
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and we give the route a name
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and a URL. And that URL may or may not contain variables.
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We saw in the release example
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for an individual release
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there's actually two variables interspersed
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into the URL there that we could grab out
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which is pretty awesome.
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And then we're going to create a view method
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and apply the route name to be the name passed there.
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And then things will be better for you
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just keeping track
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if you do some organizations.
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So we'll use the help template in the home folder.
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The name of the function is help and so on.
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But there's no reason they have to correspond
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other than it helps you link these things together
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because there's no other real way to know
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what links where.
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To get the value passed in the URL.
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So if somebody said /help/installing
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We're going to go to the request.
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We'll go to the matchdict
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then we say get topic and it's going to give us installing.
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And what I've done here is I've passed overview
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as a second parameter there
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so for some reason
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no topic is passed or it's not found
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we're going to pull back some kind of default help
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we can show them
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instead of showing a 404
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like here's an overview of the thing.
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You asked for help that didn't exist.
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So you're going to get just an overview.
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And that's really is all there is to it.
