@render_to('release/show.html')
def release_show(request, project_slug, release_pk):
    
    release = get_object_or_404(Release, project=request.project, pk=release_pk)
    username = request.GET.get('user', '')
    context = calculate_progress(release, username)

    try:
        visibility = int(request.GET.get('visibility', 'nan'))
    except ValueError:
        visibility = None
    if not visibility in [0] + [x[0] for x in settings.STATUS_VISIBILITY]:
        visibility = settings.VISIBILITY_ACTIVE


    orm_sort_key, sort_string = parse_sort_argument(request.GET.get('sort', ''))
    qs_params = '?visibility=%s&sort=%s&features=%s&user=%s' % (
        visibility, sort_string, request.GET.get('features', ''),
        username)

    if 'visibility' in request.GET:
        form = ReleaseFilterForm(request.GET)
    else:
        form = ReleaseFilterForm(initial={'visibility': visibility,
                                          'sort': sort_string,
                                          'user': '',
                                          'features': ''})

    rtasks = form.filter(release, visibility)\
                .order_by(orm_sort_key)\
                .select_related('task__task_type', 'task__status',
                                'task__priority', 'task__project')
                

    next = request.path + urllib.quote(qs_params.encode('utf-8'), safe='?')


    context.update({'rtasks': rtasks,
                    'release': release,
                    'sort': sort_string,
                    'sort_key': sort_string.split('_')[0],
                    'qs_params': qs_params,
                    'visibility': visibility,
                    'VISIBILITY_ACTIVE': settings.VISIBILITY_ACTIVE,
                    'VISIBILITY_DONE': settings.VISIBILITY_DONE,
                    'VISIBILITY_CLOSED': settings.VISIBILITY_CLOSED,
                    'VISIBILITY_ALL': 0,
                    'next': next,
                    'form': form,
                    })
    return context