PollPermission 

t3oodle has got a central class controlling poll permission logic.

Existing permissions are:

  • isViewingInGeneralAllowed($poll)
  • isViewingAllowed($poll)
  • isShowAllowed($poll)
  • isNewAllowed()
  • isNewSimplePollAllowed()
  • isNewSchedulePollAllowed()
  • isEditAllowed($poll)
  • isDeleteAllowed($poll)
  • isPublishAllowed($poll)
  • isFinishAllowed($poll)
  • isFinishSuggestionModeAllowed($poll)
  • isSuggestNewOptionsAllowed($poll)
  • isVotingAllowed($poll)
  • isSeeParticipantsDuringVotingAllowed($poll)
  • isSeeVotesDuringVotingAllowed($poll)
  • isAdministrationAllowed($poll)
  • isResetVotesAllowed($poll)
  • isDeleteOwnVoteAllowed($vote) !!!

They are used in controller actions, as well as in Fluid templates.

Permission ViewHelper 

<f:if condition="{t3oodle:permission(action:'newSimplePoll')}">
    // show new button
</f:if>
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The action is passed without trailing is and Allowed.

When a permission requires poll or vote argument, you can call it like this:

<f:if condition="{poll -> t3oodle:permission(action:'delete')}">
    // show delete button, for this poll
</f:if>
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Modifying permissions 

Permissions can get changed programmatically by using PSR-14 events. For most permissions an own event exists (see Permission events). The event carries the current status, which you can overwrite with setAllowed().

For example, to modify the permission to create a new poll, listen to NewPollAllowedEvent:

<?php

declare(strict_types=1);

namespace Vendor\MyExt\EventListener;

use FGTCLB\T3oodle\Event\Permission\NewPollAllowedEvent;
use TYPO3\CMS\Core\Attribute\AsEventListener;

final class NewPollPermissionListener
{
    #[AsEventListener(identifier: 'my-ext/new-poll-permission')]
    public function __invoke(NewPollAllowedEvent $event): void
    {
        if (!$event->isAllowed()) {
            return;
        }
        // TODO: implement your own logic
        $event->setAllowed(false);
    }
}
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