Block event creation during certain bulk operations

In certain CLI circumstances, it's counterproductive to create new events, so we shouldn't. For now, limited to deleting events.

Fixes #83

includes/class-cron-options-cpt.php

@@ -20,6 +20,8 @@ class Cron_Options_CPT extends Singleton {
 
 	private $option_before_unscheduling = null;
 
+	private $job_creation_suspended = false;
+
 	/**
 	 * Register hooks
 	 */
@@ -286,6 +288,11 @@ class Cron_Options_CPT extends Singleton {
 	 * Also doesn't call `wp_insert_post()` because this function is needed before post types and capabilities are ready.
 	 */
 	public function create_or_update_job( $timestamp, $action, $args, $update_id = null ) {
+		// Don't create new jobs when manipulating jobs via the plugin's CLI commands
+		if ( $this->job_creation_suspended ) {
+			return;
+		}
+
 		global $wpdb;
 
 		// Build minimum information needed to create a post
@@ -436,6 +443,22 @@ class Cron_Options_CPT extends Singleton {
 	private function event_title( $timestamp, $action, $instance ) {
 		return sprintf( '%s | %s | %s', $timestamp, $action, $instance );
 	}
+
+	/**
+	 * Prevent CPT from creating new entries
+	 *
+	 * Should be used sparingly, and followed by a call to resume_event_creation(), during bulk operations
+	 */
+	public function suspend_event_creation() {
+		$this->job_creation_suspended = true;
+	}
+
+	/**
+	 * Stop discarding events, once again storing them in the CPT
+	 */
+	public function resume_event_creation() {
+		$this->job_creation_suspended = false;
+	}
 }
 
 Cron_Options_CPT::instance();

includes/wp-cli/class-events.php

@@ -363,7 +363,9 @@ class Events extends \WP_CLI_Command {
 			\WP_CLI::confirm( sprintf( __( 'Are you sure you want to delete this event?', 'automattic-cron-control' ) ) );
 
 			// Try to delete the item and provide some relevant output
+			\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->suspend_event_creation();
 			$trashed = wp_delete_post( $event_post->ID, true );
+			\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->resume_event_creation();
 
 			if ( false === $trashed ) {
 				\WP_CLI::error( sprintf( __( 'Failed to delete event %d', 'automattic-cron-control' ), $jid ) );
@@ -474,6 +476,9 @@ class Events extends \WP_CLI_Command {
 		$events_deleted       = array();
 		$events_deleted_count = $events_failed_delete = 0;
 
+		// Don't create new events while deleting events
+		\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->suspend_event_creation();
+
 		foreach ( $events_to_delete as $event_to_delete ) {
 			$deleted = wp_delete_post( $event_to_delete['ID'], true );
 
@@ -498,6 +503,9 @@ class Events extends \WP_CLI_Command {
 			\Automattic\WP\Cron_Control\_flush_internal_caches();
 		}
 
+		// New events can be created now that removal is complete
+		\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->resume_event_creation();
+
 		// List the removed items
 		\WP_CLI::line( "\n" . __( 'RESULTS:', 'automattic-cron-control' ) );
 

includes/wp-cli/class-one-time-fixers.php

@@ -25,6 +25,9 @@ class One_Time_Fixers extends \WP_CLI_Command {
 		// Provide some idea of what's going on
 		\WP_CLI::line( __( 'CRON CONTROL', 'automattic-cron-control' ) . "\n" );
 
+		// Don't create new events while deleting events
+		\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->suspend_event_creation();
+
 		$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(ID) FROM {$wpdb->posts} WHERE post_type = %s;", 'a8c_cron_ctrl_event' ) );
 
 		if ( is_numeric( $count ) ) {
@@ -102,6 +105,9 @@ class One_Time_Fixers extends \WP_CLI_Command {
 			\WP_CLI::line( "\n" . sprintf( __( 'Cleared the %s cache', 'automattic-cron-control' ), 'Cron Control' ) );
 		}
 
+		// Let event creation resume
+		\Automattic\WP\Cron_Control\Cron_Options_CPT::instance()->resume_event_creation();
+
 		// Fin
 		\WP_CLI::success( __( 'All done.', 'automattic-cron-control' ) );
 	}