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<?php
/**
* General API functions for scheduling actions
*/
/**
* Enqueue an action to run one time, as soon as possible
*
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
* @return int The action ID.
*/
function as_enqueue_async_action( $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return 0;
}
return ActionScheduler::factory()->async( $hook, $args, $group );
}
/**
* Schedule an action to run one time
*
* @param int $timestamp When the job will run.
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
*
* @return int The action ID.
*/
function as_schedule_single_action( $timestamp, $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return 0;
}
return ActionScheduler::factory()->single( $hook, $args, $timestamp, $group );
}
/**
* Schedule a recurring action
*
* @param int $timestamp When the first instance of the job will run.
* @param int $interval_in_seconds How long to wait between runs.
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
*
* @return int The action ID.
*/
function as_schedule_recurring_action( $timestamp, $interval_in_seconds, $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return 0;
}
return ActionScheduler::factory()->recurring( $hook, $args, $timestamp, $interval_in_seconds, $group );
}
/**
* Schedule an action that recurs on a cron-like schedule.
*
* @param int $base_timestamp The first instance of the action will be scheduled
* to run at a time calculated after this timestamp matching the cron
* expression. This can be used to delay the first instance of the action.
* @param string $schedule A cron-link schedule string
* @see http://en.wikipedia.org/wiki/Cron
* * * * * * *
* ┬ ┬ ┬ ┬ ┬ ┬
* | | | | | |
* | | | | | + year [optional]
* | | | | +----- day of week (0 - 7) (Sunday=0 or 7)
* | | | +---------- month (1 - 12)
* | | +--------------- day of month (1 - 31)
* | +-------------------- hour (0 - 23)
* +------------------------- min (0 - 59)
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
*
* @return int The action ID.
*/
function as_schedule_cron_action( $timestamp, $schedule, $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return 0;
}
return ActionScheduler::factory()->cron( $hook, $args, $timestamp, $schedule, $group );
}
/**
* Cancel the next occurrence of a scheduled action.
*
* While only the next instance of a recurring or cron action is unscheduled by this method, that will also prevent
* all future instances of that recurring or cron action from being run. Recurring and cron actions are scheduled in
* a sequence instead of all being scheduled at once. Each successive occurrence of a recurring action is scheduled
* only after the former action is run. If the next instance is never run, because it's unscheduled by this function,
* then the following instance will never be scheduled (or exist), which is effectively the same as being unscheduled
* by this method also.
*
* @param string $hook The hook that the job will trigger.
* @param array $args Args that would have been passed to the job.
* @param string $group The group the job is assigned to.
*
* @return string|null The scheduled action ID if a scheduled action was found, or null if no matching action found.
*/
function as_unschedule_action( $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return 0;
}
$params = array();
if ( is_array($args) ) {
$params['args'] = $args;
}
if ( !empty($group) ) {
$params['group'] = $group;
}
$job_id = ActionScheduler::store()->find_action( $hook, $params );
if ( ! empty( $job_id ) ) {
ActionScheduler::store()->cancel_action( $job_id );
}
return $job_id;
}
/**
* Cancel all occurrences of a scheduled action.
*
* @param string $hook The hook that the job will trigger.
* @param array $args Args that would have been passed to the job.
* @param string $group The group the job is assigned to.
*/
function as_unschedule_all_actions( $hook, $args = array(), $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return;
}
if ( empty( $args ) ) {
if ( ! empty( $hook ) && empty( $group ) ) {
ActionScheduler_Store::instance()->cancel_actions_by_hook( $hook );
return;
}
if ( ! empty( $group ) && empty( $hook ) ) {
ActionScheduler_Store::instance()->cancel_actions_by_group( $group );
return;
}
}
do {
$unscheduled_action = as_unschedule_action( $hook, $args, $group );
} while ( ! empty( $unscheduled_action ) );
}
/**
* Check if there is an existing action in the queue with a given hook, args and group combination.
*
* An action in the queue could be pending, in-progress or async. If the is pending for a time in
* future, its scheduled date will be returned as a timestamp. If it is currently being run, or an
* async action sitting in the queue waiting to be processed, in which case boolean true will be
* returned. Or there may be no async, in-progress or pending action for this hook, in which case,
* boolean false will be the return value.
*
* @param string $hook
* @param array $args
* @param string $group
*
* @return int|bool The timestamp for the next occurrence of a pending scheduled action, true for an async or in-progress action or false if there is no matching action.
*/
function as_next_scheduled_action( $hook, $args = NULL, $group = '' ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return false;
}
$params = array();
if ( is_array($args) ) {
$params['args'] = $args;
}
if ( !empty($group) ) {
$params['group'] = $group;
}
$params['status'] = ActionScheduler_Store::STATUS_RUNNING;
$job_id = ActionScheduler::store()->find_action( $hook, $params );
if ( ! empty( $job_id ) ) {
return true;
}
$params['status'] = ActionScheduler_Store::STATUS_PENDING;
$job_id = ActionScheduler::store()->find_action( $hook, $params );
if ( empty($job_id) ) {
return false;
}
$job = ActionScheduler::store()->fetch_action( $job_id );
$scheduled_date = $job->get_schedule()->get_date();
if ( $scheduled_date ) {
return (int) $scheduled_date->format( 'U' );
} elseif ( NULL === $scheduled_date ) { // pending async action with NullSchedule
return true;
}
return false;
}
/**
* Find scheduled actions
*
* @param array $args Possible arguments, with their default values:
* 'hook' => '' - the name of the action that will be triggered
* 'args' => NULL - the args array that will be passed with the action
* 'date' => NULL - the scheduled date of the action. Expects a DateTime object, a unix timestamp, or a string that can parsed with strtotime(). Used in UTC timezone.
* 'date_compare' => '<=' - operator for testing "date". accepted values are '!=', '>', '>=', '<', '<=', '='
* 'modified' => NULL - the date the action was last updated. Expects a DateTime object, a unix timestamp, or a string that can parsed with strtotime(). Used in UTC timezone.
* 'modified_compare' => '<=' - operator for testing "modified". accepted values are '!=', '>', '>=', '<', '<=', '='
* 'group' => '' - the group the action belongs to
* 'status' => '' - ActionScheduler_Store::STATUS_COMPLETE or ActionScheduler_Store::STATUS_PENDING
* 'claimed' => NULL - TRUE to find claimed actions, FALSE to find unclaimed actions, a string to find a specific claim ID
* 'per_page' => 5 - Number of results to return
* 'offset' => 0
* 'orderby' => 'date' - accepted values are 'hook', 'group', 'modified', or 'date'
* 'order' => 'ASC'
*
* @param string $return_format OBJECT, ARRAY_A, or ids.
*
* @return array
*/
function as_get_scheduled_actions( $args = array(), $return_format = OBJECT ) {
if ( ! ActionScheduler::is_initialized( __FUNCTION__ ) ) {
return array();
}
$store = ActionScheduler::store();
foreach ( array('date', 'modified') as $key ) {
if ( isset($args[$key]) ) {
$args[$key] = as_get_datetime_object($args[$key]);
}
}
$ids = $store->query_actions( $args );
if ( $return_format == 'ids' || $return_format == 'int' ) {
return $ids;
}
$actions = array();
foreach ( $ids as $action_id ) {
$actions[$action_id] = $store->fetch_action( $action_id );
}
if ( $return_format == ARRAY_A ) {
foreach ( $actions as $action_id => $action_object ) {
$actions[$action_id] = get_object_vars($action_object);
}
}
return $actions;
}
/**
* Helper function to create an instance of DateTime based on a given
* string and timezone. By default, will return the current date/time
* in the UTC timezone.
*
* Needed because new DateTime() called without an explicit timezone
* will create a date/time in PHP's timezone, but we need to have
* assurance that a date/time uses the right timezone (which we almost
* always want to be UTC), which means we need to always include the
* timezone when instantiating datetimes rather than leaving it up to
* the PHP default.
*
* @param mixed $date_string A date/time string. Valid formats are explained in http://php.net/manual/en/datetime.formats.php.
* @param string $timezone A timezone identifier, like UTC or Europe/Lisbon. The list of valid identifiers is available http://php.net/manual/en/timezones.php.
*
* @return ActionScheduler_DateTime
*/
function as_get_datetime_object( $date_string = null, $timezone = 'UTC' ) {
if ( is_object( $date_string ) && $date_string instanceof DateTime ) {
$date = new ActionScheduler_DateTime( $date_string->format( 'Y-m-d H:i:s' ), new DateTimeZone( $timezone ) );
} elseif ( is_numeric( $date_string ) ) {
$date = new ActionScheduler_DateTime( '@' . $date_string, new DateTimeZone( $timezone ) );
} else {
$date = new ActionScheduler_DateTime( $date_string, new DateTimeZone( $timezone ) );
}
return $date;
}
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