Other

Events that does not have a specific context.

onOpenGraphPrepare

/**
 * Triggered on Open Graph data preparation for contest, entry or category (view).
 *
 * @param   string  $context   Event context.
 * @param   object  $item      Item: contest, entry or category.
 * @param   object  $ogObject  Object with Open Graph data.
 * @param   array   $options   Array of additional options like Twitter card types.
 */
public function onOpenGraphPrepare($context, $item, $ogObject, &$options)
{
    if ($context != 'com_competition.competition'
        && $context != 'com_competition.participant'
        && $context != 'com_competition.category'
        || !\Joomla\CMS\Factory::getApplication()->app->isClient('site'))
    {
        return;
    }

    $ogObject->title = empty($item->title) ? $context : $item->title . ' - ' . $context;
    $ogObject->description   = 'onOpenGraphPrepare is working fine';
    $options['twitter_card'] = 'summary_large_image';
}

onSaveRedirect

/**
 * Triggered on entry or contest form save (controller).
 * com_competition.appform - entry form context.
 * com_competition.cform - contest form context.
 *
 * @param   string  $context    Event context.
 * @param   string  $url        URL to redirect.
 * @param   string  $msg        System message to display.
 * @param   array   $validData  Validated form data.
 */
public function onSaveRedirect($context, &$url, &$msg, $validData)
{
    if ($context != 'com_competition.appform'
        && $context != 'com_competition.cform'
        || !\Joomla\CMS\Factory::getApplication()->app->isClient('site'))
    {
        return;
    }

    $url = \Joomla\CMS\Uri\Uri::root();
    $msg = 'onSaveRedirect is working fine for ' . $context;
}

onUserAuthorise

The event can be triggered anywhere in the component and allows the plugins to override JUser::authorise result in case it is not true. If the plugin returns true then action is allowed. Currently plugins can override only core.vote and core.unvote actions.

/**
 * Event can be triggered anywhere in the component.
 *
 * @param   object  $user       Reference to JUser object.
 * @param   string  $action     Name of the action to check for permission, like 'core.vote'.
 * @param   object  $assetname  Name of the asset on which to perform the action, like 'com_competition.competition.1'.
 */
public function onUserAuthorise($user, $action, $assetname)
{
    // Allow action
    return;
}