WooCommerce Code Reference

WC_Queue_Interface

WC Queue Interface

Functions that must be defined to implement an action/job/event queue.

Tags
version
3.5.0

Table of Contents

add()  : string
Enqueue an action to run one time, as soon as possible
cancel()  : mixed
Dequeue the next scheduled instance of an action with a matching hook (and optionally matching args and group).
cancel_all()  : mixed
Dequeue all actions with a matching hook (and optionally matching args and group) so no matching actions are ever run.
get_next()  : WC_DateTime|null
Get the date and time for the next scheduled occurence of an action with a given hook (an optionally that matches certain args and group), if any.
schedule_cron()  : string
Schedule an action that recurs on a cron-like schedule.
schedule_recurring()  : string
Schedule a recurring action
schedule_single()  : string
Schedule an action to run once at some time in the future
search()  : array<string|int, mixed>
Find scheduled actions.

Methods

add()

Enqueue an action to run one time, as soon as possible

public add(string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : string
Parameters
$hook : string

The hook to trigger.

$args : array<string|int, mixed> = array()

Arguments to pass when the hook triggers.

$group : string = ''

The group to assign this job to.

Return values
stringThe action ID

cancel()

Dequeue the next scheduled instance of an action with a matching hook (and optionally matching args and group).

public cancel(string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : mixed

Any recurring actions with a matching hook should also be cancelled, not just the next scheduled action.

Parameters
$hook : string

The hook that the job will trigger.

$args : array<string|int, mixed> = array()

Args that would have been passed to the job.

$group : string = ''

The group the job is assigned to (if any).

Return values
mixed

cancel_all()

Dequeue all actions with a matching hook (and optionally matching args and group) so no matching actions are ever run.

public cancel_all(string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : mixed
Parameters
$hook : string

The hook that the job will trigger.

$args : array<string|int, mixed> = array()

Args that would have been passed to the job.

$group : string = ''

The group the job is assigned to (if any).

Return values
mixed

get_next()

Get the date and time for the next scheduled occurence of an action with a given hook (an optionally that matches certain args and group), if any.

public get_next(string $hook[, array<string|int, mixed> $args = null ][, string $group = '' ]) : WC_DateTime|null
Parameters
$hook : string

The hook that the job will trigger.

$args : array<string|int, mixed> = null

Filter to a hook with matching args that will be passed to the job when it runs.

$group : string = ''

Filter to only actions assigned to a specific group.

Return values
WC_DateTime|nullThe date and time for the next occurrence, or null if there is no pending, scheduled action for the given hook

schedule_cron()

Schedule an action that recurs on a cron-like schedule.

public schedule_cron(int $timestamp, string $cron_schedule, string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : string
Parameters
$timestamp : int

The schedule will start on or after this time.

$cron_schedule : string

A cron-link schedule string.

$hook : string

The hook to trigger.

$args : array<string|int, mixed> = array()

Arguments to pass when the hook triggers.

$group : string = ''

The group to assign this job to.

Tags
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)

Return values
stringThe action ID

schedule_recurring()

Schedule a recurring action

public schedule_recurring(int $timestamp, int $interval_in_seconds, string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : string
Parameters
$timestamp : int

When the first instance of the job will run.

$interval_in_seconds : int

How long to wait between runs.

$hook : string

The hook to trigger.

$args : array<string|int, mixed> = array()

Arguments to pass when the hook triggers.

$group : string = ''

The group to assign this job to.

Return values
stringThe action ID

schedule_single()

Schedule an action to run once at some time in the future

public schedule_single(int $timestamp, string $hook[, array<string|int, mixed> $args = array() ][, string $group = '' ]) : string
Parameters
$timestamp : int

When the job will run.

$hook : string

The hook to trigger.

$args : array<string|int, mixed> = array()

Arguments to pass when the hook triggers.

$group : string = ''

The group to assign this job to.

Return values
stringThe action ID

Find scheduled actions.

public search([array<string|int, mixed> $args = array() ][, string $return_format = OBJECT ]) : array<string|int, mixed>
Parameters
$args : array<string|int, mixed> = array()

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'.

$return_format : string = OBJECT

OBJECT, ARRAY_A, or ids.

Return values
array<string|int, mixed>