Internal redirects in Morepath

app.py

""" Simple redirects for renamed paths using a generic redirect model.

For static paths:

    @App.path('/old-path')
    class OldPathRedirect(Redirect):
        to = '/new-path'

For wildcard paths (e.g. /old-pages/my-page to /new-pages/my-page):

    @App.path('/old-path', absorb=True)
    class OldPagesRedirect(Redirect):
        to = '/new-pages
"""
import morepath

class App(morepath.App):
   pass

class Redirect(object):
    to = None

    def __init__(self, absorb=None):
        assert self.to and not self.to.endswith('/')

        if absorb:
            self.to += '/' + absorb

@App.view(model=Redirect)
def view_redirect(self, request):
    return morepath.redirect(self.to)