Source code for election_day.views.manage.cache

from morepath import redirect
from onegov.core.security import Secret
from onegov.election_day import _
from onegov.election_day import ElectionDayApp
from onegov.election_day.forms import EmptyForm
from onegov.election_day.layouts import DefaultLayout
from onegov.election_day.models import Principal


from typing import TYPE_CHECKING
if TYPE_CHECKING:
    from onegov.core.types import RenderData
    from onegov.election_day.request import ElectionDayRequest
    from webob.response import Response


@ElectionDayApp.manage_form(
    model=Principal,
    name='clear-cache',
    template='form.pt',
    form=EmptyForm,
    permission=Secret
)


def view_clear_pages_cache(
    self: Principal,
    request: 'ElectionDayRequest',
    form: EmptyForm
) -> 'RenderData | Response':
    """ Clears the pages cache. """

    layout = DefaultLayout(self, request)

    if form.submitted(request):
        request.app.pages_cache.flush()
        request.message(_('Cache cleared.'), 'success')
        return redirect(layout.manage_link)

    return {
        'layout': layout,
        'form': form,
        'title': _('Clear cache'),
        'callout': _(
            'Elections and votes are cached for ${expiration} seconds. The '
            'cache is automatically cleared for new results and other '
            'updates. It is not normally necessary to clear the cache '
            'yourself.',
            mapping={'expiration': self.cache_expiration_time}
        ),
        'cancel': layout.manage_link
    }