View file File name : ActionScheduler_SimpleSchedule.php Content :<?php /** * Class ActionScheduler_SimpleSchedule */ class ActionScheduler_SimpleSchedule extends ActionScheduler_Abstract_Schedule { /** * Deprecated property @see $this->__wakeup() for details. **/ private $timestamp = NULL; /** * @param DateTime $after * * @return DateTime|null */ public function calculate_next( DateTime $after ) { return null; } /** * @return bool */ public function is_recurring() { return false; } /** * Serialize schedule with data required prior to AS 3.0.0 * * Prior to Action Scheduler 3.0.0, schedules used different property names to refer * to equivalent data. For example, ActionScheduler_IntervalSchedule::start_timestamp * was the same as ActionScheduler_SimpleSchedule::timestamp. Action Scheduler 3.0.0 * aligned properties and property names for better inheritance. To guard against the * scheduled date for single actions always being seen as "now" if downgrading to * Action Scheduler < 3.0.0, we need to also store the data with the old property names * so if it's unserialized in AS < 3.0, the schedule doesn't end up with a null recurrence. * * @return array */ public function __sleep() { $sleep_params = parent::__sleep(); $this->timestamp = $this->scheduled_timestamp; return array_merge( $sleep_params, array( 'timestamp', ) ); } /** * Unserialize recurring schedules serialized/stored prior to AS 3.0.0 * * Prior to Action Scheduler 3.0.0, schedules used different property names to refer * to equivalent data. For example, ActionScheduler_IntervalSchedule::start_timestamp * was the same as ActionScheduler_SimpleSchedule::timestamp. Action Scheduler 3.0.0 * aligned properties and property names for better inheritance. To maintain backward * compatibility with schedules serialized and stored prior to 3.0, we need to correctly * map the old property names with matching visibility. */ public function __wakeup() { if ( is_null( $this->scheduled_timestamp ) && ! is_null( $this->timestamp ) ) { $this->scheduled_timestamp = $this->timestamp; unset( $this->timestamp ); } parent::__wakeup(); } }