def render(self, context):
try:
source = self.src.resolve(context)
except VariableDoesNotExist:
return None
if self.version_prefix:
version_prefix = self.version_prefix
else:
try:
version_prefix = self.version_prefix_var.resolve(context)
except VariableDoesNotExist:
return None
try:
version_path = _get_version_path(_url_to_path(str(source)), version_prefix)
if not os.path.isfile(os.path.join(MEDIA_ROOT, version_path)):
# create version
version_path = _version_generator(_url_to_path(str(source)), version_prefix)
elif os.path.getmtime(os.path.join(MEDIA_ROOT, _url_to_path(str(source)))) > os.path.getmtime(os.path.join(MEDIA_ROOT, version_path)):
# recreate version if original image was updated
version_path = _version_generator(_url_to_path(str(source)), version_prefix, force=True)
return _path_to_url(version_path)
except Exception:
logger.exception("Version error")
return u""
def versions(request):
"""
Show all Versions for an Image according to ADMIN_VERSIONS.
"""
# QUERY / PATH CHECK
query = request.GET
path = _get_path(query.get('dir', ''))
filename = _get_file(query.get('dir', ''), query.get('filename', ''))
if path is None or filename is None:
msg = _('Directory/File does not exist.')
request.user.message_set.create(message=msg)
return HttpResponseRedirect(reverse("fb_browse"))
abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
return render_to_response('filebrowser/versions.html', {
'original': _path_to_url(os.path.join(DIRECTORY, path, filename)),
'query': query,
'title': _(u'Versions for "%s"') % filename,
'settings_var': _get_settings_var(),
'breadcrumbs': _get_breadcrumbs(query, path, _(u'Versions for "%s"') % filename),
}, context_instance=Context(request))
