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<?php
namespace PWCC\WP_Cron_Cavalcade;
/**
* Initialize the plugin.
*/
function bootstrap() {
/*
* The Cavalcade plugin uses a different rescheduling algorithm to WordPress
* Core. This overrides the Cavalcade changes to use the WordPress default.
*
* This runs early to ensure Cavalcade defers to the override.
*/
add_filter( 'pre_reschedule_event', __NAMESPACE__ . '\\pre_reschedule_event', 9, 2 );
}
add_action( 'plugins_loaded', __NAMESPACE__ . '\\bootstrap' );
/**
* Reschedules a recurring event.
*
* This replaces the Cavalcade modification to rescheduling algorithm to use the WordPress
* default algorithm.
*
* Runs on the filter `pre_reschedule_event` at priority 9.
*
* @param null|bool $pre Value to return instead. Default null to continue adding the event.
* @param stdClass $event {
* An object containing an event's data.
*
* @type string $hook Action hook to execute when the event is run.
* @type int $timestamp Unix timestamp (UTC) for when to next run the event.
* @type string|false $schedule How often the event should subsequently recur.
* @type array $args Array containing each separate argument to pass to the hook's callback function.
* @type int $interval The interval time in seconds for the schedule. Only present for recurring events.
* }
* @return bool True if event successfully rescheduled. False for failure.
*/
function pre_reschedule_event( $pre, $event ) {
// Ensure Cavalcade exists and allow other filters to do their thing.
if (
! class_exists( '\HM\Cavalcade\Plugin\Job' ) ||
null !== $pre
) {
return $pre;
}
// First check if the job exists already.
$jobs = \HM\Cavalcade\Plugin\Job::get_jobs_by_query(
[
'hook' => $event->hook,
'timestamp' => $event->timestamp,
'args' => $event->args,
]
);
if ( is_wp_error( $jobs ) || empty( $jobs ) ) {
// The job does not exist.
return false;
}
$job = $jobs[0];
// Now we assume something is wrong (single job?) and fail to reschedule
if ( 0 === $event->interval && 0 === $job->interval ) {
return false;
}
// Determine when to next run the event per WordPress Core.
$timestamp = $event->timestamp;
$now = time();
if ( $timestamp >= $now ) {
$timestamp = $now + $event->interval;
} else {
$timestamp = $now + ( $event->interval - ( ( $now - $timestamp ) % $event->interval ) );
}
$job->nextrun = $timestamp;
$job->interval = $event->interval;
$job->schedule = $event->schedule;
$job->save();
// Rescheduled.
return true;
}
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