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Address fatal error in Action Scheduler when identity field was not correctly set on migration
Plugin Name: Fix Action Scheduler Action IDs
Version: 0.2
Author: Automattic
Author URI:
Description: This is a one time use plugin designed to address a fatal error during AS migration where the identity field in the actionscheduler_actions table did not get set before actions were migrated.
License: GNU General Public License v3.0 (or later)
License URI:
add_action( 'init', function() {
global $wpdb;
// Assign table names with AS inactive.
$action_table = $wpdb->prefix . 'actionscheduler_actions';
$log_table = $wpdb->prefix . 'actionscheduler_logs';
// Get the relevant option.
$demarkation_id = get_option( 'action_scheduler_hybrid_store_demarkation' );
// Or get the maximum action ID in the posts table.
if ( $demarkation_id < 3 ) {
$demarkation_id = $wpdb->get_var( $wpdb->prepare( "SELECT MAX(ID) FROM {$wpdb->posts} WHERE post_type = %s", 'scheduled-action' ) );
// If there isn't a demarkation ID then there is nothing to do.
if ( $demarkation_id < 3 ) {
// Check for a lower action ID in the actions table.
$min_action_id = $wpdb->get_var( "SELECT MIN(action_id) FROM {$action_table}" );
if ( $min_action_id < $demarkation_id ) {
$max_action_id = $wpdb->get_var( "SELECT MAX(action_id) FROM {$action_table}" );
// Update the action IDs to a range that doesn't currently exist.
$increase = max( $max_action_id + 1, $demarkation_id + 1 );
$wpdb->query( $wpdb->prepare( "UPDATE {$action_table} SET action_id = action_id + %d", $increase ) );
$wpdb->query( $wpdb->prepare( "UPDATE {$log_table} SET action_id = action_id + %d", $increase ) );
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