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Viewing changes to ivle/webapp/admin/publishing.py

  • Committer: David Coles
  • Date: 2010-07-28 10:52:48 UTC
  • mfrom: (1791.2.10 mediahandlers)
  • Revision ID: coles.david@gmail.com-20100728105248-zvbn9g72v1nsskvd
A series of HTML5 based media handlers using the <audio> and <video> tags.  
This replaces the previous page that just showed a download link (which is 
already available on the menu).

Also solves issue where media files were downloaded by the client twice (once 
in an AJAX request intended only for text).

Known issues:
    * Bug #588285: External BHO will not be able to play media due to not
      having IVLE cookie.
    * Bug #610745: Does not correctly preview revisions
    * Bug #610780: Ogg media does not work in Chromium

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ivle/webapp/admin/publishing.py
 
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# IVLE - Informatics Virtual Learning Environment
 
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# Copyright (C) 2007-2009 The University of Melbourne
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
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from storm.locals import Store
 
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from ivle.database import (
 
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    Enrolment, Offering, ProjectSet, Project, Semester, Subject, User)
 
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from ivle.webapp import ApplicationRoot
 
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from ivle.webapp.publisher import ROOT
 
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from ivle.webapp.publisher.decorators import forward_route, reverse_route
 
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@forward_route(ApplicationRoot, argc=1)
 
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def root_to_user(root, segment):
 
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    if not segment.startswith('~'):
 
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        return None
 
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    return User.get_by_login(root.store, segment[1:])
 
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@forward_route(ApplicationRoot, 'subjects', argc=1)
 
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def root_to_subject(root, name):
 
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    return root.store.find(Subject, short_name=name).one()
 
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@forward_route(ApplicationRoot, '+semesters', argc=2)
 
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def root_to_semester(root, year, semester):
 
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    return root.store.find(Semester, year=year, url_name=semester).one()
 
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@forward_route(Subject, argc=2)
 
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def subject_to_offering(subject, year, semester):
 
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    return subject.offering_for_semester(year, semester)
 
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@forward_route(Offering, '+projects', argc=1)
 
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def offering_to_project(offering, name):
 
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    return Store.of(offering).find(Project,
 
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                                   Project.short_name == name,
 
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                                   Project.project_set_id == ProjectSet.id,
 
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                                   ProjectSet.offering == offering).one()
 
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@forward_route(Offering, '+projectsets', argc=1)
 
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def offering_to_projectset(offering, name):
 
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    try:
 
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        ps_id = int(name)
 
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    except ValueError:
 
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        return None
 
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    return Store.of(offering).find(ProjectSet,
 
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                                   ProjectSet.id == ps_id,
 
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                                   ProjectSet.offering == offering).one()
 
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@forward_route(Offering, '+enrolments', argc=1)
 
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def offering_to_enrolment(offering, login):
 
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    return Store.of(offering).find(Enrolment,
 
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                                   Enrolment.offering == offering,
 
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                                   Enrolment.user_id == User.id,
 
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                                   User.login == login).one()
 
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@reverse_route(User)
 
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def user_url(user):
 
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    return (ROOT, '~' + user.login)
 
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@reverse_route(Subject)
 
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def subject_url(subject):
 
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    return (ROOT, ('subjects', subject.short_name))
 
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@reverse_route(Semester)
 
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def semester_url(semester):
 
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    return (ROOT, ('+semesters', semester.year, semester.url_name))
 
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@reverse_route(Offering)
 
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def offering_url(offering):
 
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    return (offering.subject, (offering.semester.year,
 
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                               offering.semester.url_name))
 
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@reverse_route(ProjectSet)
 
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def projectset_url(project_set):
 
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    return (project_set.offering, ('+projectsets', str(project_set.id)))
 
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@reverse_route(Project)
 
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def project_url(project):
 
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    return (project.project_set.offering, ('+projects', project.short_name))
 
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@reverse_route(Enrolment)
 
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def enrolment_url(enrolment):
 
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    return (enrolment.offering, ('+enrolments', enrolment.user.login))