Mercurial > genshi > genshi-test
view examples/tutorial/geddit/controller.py @ 627:2f4dc32a13e7
GenshiTutorial: minor tweaks to sync with Wiki page.
author | cmlenz |
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date | Fri, 31 Aug 2007 23:13:27 +0000 |
parents | dba522b4c31d |
children | 693a7212b348 |
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#!/usr/bin/env python import operator import os import pickle import sys import cherrypy from formencode import Invalid from genshi.filters import HTMLFormFiller from geddit.form import LinkForm, CommentForm from geddit.lib import ajax, template from geddit.model import Link, Comment class Root(object): def __init__(self, data): self.data = data @cherrypy.expose @template.output('index.xml', method='xml') def feed(self, id=None): if id: link = self.data.get(id) if not link: raise cherrypy.NotFound() return template.render('info.xml', link=link) else: links = sorted(self.data.values(), key=operator.attrgetter('time')) return template.render(links=links) @cherrypy.expose @template.output('index.html') def index(self): links = sorted(self.data.values(), key=operator.attrgetter('time')) return template.render(links=links) @cherrypy.expose @template.output('submit.html') def submit(self, cancel=False, **data): if cherrypy.request.method == 'POST': if cancel: raise cherrypy.HTTPRedirect('/') form = LinkForm() try: data = form.to_python(data) link = Link(**data) self.data[link.id] = link raise cherrypy.HTTPRedirect('/') except Invalid, e: errors = e.unpack_errors() else: errors = {} return template.render(errors=errors) | HTMLFormFiller(data=data) @cherrypy.expose @template.output('info.html') def info(self, id): link = self.data.get(id) if not link: raise cherrypy.NotFound() return template.render(link=link) @cherrypy.expose @template.output('comment.html') def comment(self, id, cancel=False, **data): link = self.data.get(id) if not link: raise cherrypy.NotFound() if cherrypy.request.method == 'POST': if cancel: raise cherrypy.HTTPRedirect('/info/%s' % link.id) form = CommentForm() try: data = form.to_python(data) comment = link.add_comment(**data) if not ajax.is_xhr(): raise cherrypy.HTTPRedirect('/info/%s' % link.id) return template.render('_comment.html', comment=comment, num=len(link.comments)) except Invalid, e: errors = e.unpack_errors() else: errors = {} if ajax.is_xhr(): stream = template.render('_form.html', link=link, errors=errors) else: stream = template.render(link=link, comment=None, errors=errors) return stream | HTMLFormFiller(data=data) def main(filename): # load data from the pickle file, or initialize it to an empty list if os.path.exists(filename): fileobj = open(filename, 'rb') try: data = pickle.load(fileobj) finally: fileobj.close() else: data = {} def _save_data(): # save data back to the pickle file fileobj = open(filename, 'wb') try: pickle.dump(data, fileobj) finally: fileobj.close() cherrypy.engine.on_stop_engine_list.append(_save_data) # Some global configuration; note that this could be moved into a # configuration file cherrypy.config.update({ 'request.throw_errors': True, 'tools.encode.on': True, 'tools.encode.encoding': 'utf-8', 'tools.decode.on': True, 'tools.trailing_slash.on': True, 'tools.staticdir.root': os.path.abspath(os.path.dirname(__file__)), }) cherrypy.quickstart(Root(data), '/', { '/media': { 'tools.staticdir.on': True, 'tools.staticdir.dir': 'static' } }) if __name__ == '__main__': import formencode formencode.api.set_stdtranslation(languages=['en']) main(sys.argv[1])