Jetpack_Sync_Module

Complexity

Total Complexity

18

Size/Duplication

Total Lines	84
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes	3
Bugs	0	Features	0

13 Methods

Rating	Name	Duplication	Size	Complexity
A	enqueue_full_sync_actions()	0	4	1
A	get_full_sync_actions()	0	3	1
A	count_actions()	0	3	1
B	enqueue_all_ids_as_action()	0	32	4
A	get_metadata()	0	10	2
A	get_term_relationships()	0	5	1
	name()	0	1	?
A	init_listeners()	0	1	1
A	init_before_send()	0	1	1
A	set_defaults()	0	1	1
A	reset_data()	0	1	1
A	get_check_sum()	0	3	1
A	still_valid_checksum()	0	6	3

<?php

/**
 * Basic methods implemented by Jetpack Sync extensions
 */

abstract class Jetpack_Sync_Module {
	const ARRAY_CHUNK_SIZE = 10;

	abstract public function name();

	// override these to set up listeners and set/reset data/defaults
	public function init_listeners( $callable ) {}
	public function init_before_send() {}
	public function set_defaults() {}
	public function reset_data() {}
	public function enqueue_full_sync_actions() {
		// in subclasses, return the number of items enqueued
		return 0;
	}
	
	public function get_full_sync_actions() {
		return array();
	}

	protected function count_actions( $action_names, $actions_to_count ) {
		return count( array_intersect( $action_names, $actions_to_count ) );
	}

	protected function get_check_sum( $values ) {
		return crc32( json_encode( $values ) );
	}

	protected function still_valid_checksum( $sums_to_check, $name, $new_sum ) {
		if ( isset( $sums_to_check[ $name ] ) && $sums_to_check[ $name ] === $new_sum ) {
			return true;
		}
		return false;
	}

	protected function enqueue_all_ids_as_action( $action_name, $table_name, $id_field, $where_sql ) {
		global $wpdb;

		if ( ! $where_sql ) {
			$where_sql = "1 = 1";
		}

		$items_per_page = 500;
		$page = 1;
		$offset = ( $page * $items_per_page ) - $items_per_page;
		$chunk_count = 0;
		while( $ids = $wpdb->get_col( "SELECT {$id_field} FROM {$table_name} WHERE {$where_sql} ORDER BY {$id_field} asc LIMIT {$offset}, {$items_per_page}" ) ) {
			// Request posts in groups of N for efficiency
			$chunked_ids = array_chunk( $ids, self::ARRAY_CHUNK_SIZE );

			// Send each chunk as an array of objects
			foreach ( $chunked_ids as $chunk ) {
				/**
			 	 * Fires with a chunk of object IDs during full sync.
			 	 * These are expanded to full objects before upload
			 	 *
			 	 * @since 4.2.0
			 	 */
				do_action( $action_name, $chunk );
				$chunk_count++;
			}

			$page += 1;
			$offset = ( $page * $items_per_page ) - $items_per_page;
		}
		return $chunk_count;
	}

	protected function get_metadata( $ids, $meta_type ) {
		global $wpdb;
		$table = _get_meta_table( $meta_type );
		$id    = $meta_type . '_id';
		if ( ! $table ) {
			return array();
		}

		return $wpdb->get_results( "SELECT $id, meta_key, meta_value, meta_id FROM $table WHERE $id IN ( " . implode( ',', wp_parse_id_list( $ids ) ) . " )", OBJECT );
	}

	protected function get_term_relationships( $ids ) {
		global $wpdb;

		return $wpdb->get_results( "SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id IN ( " . implode( ',', wp_parse_id_list( $ids ) ) . " )", OBJECT );
	}
}