859 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			859 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Abstract Data.
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 *
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 * Handles generic data interaction which is implemented by
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 * the different data store classes.
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 *
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 * @class       WC_Data
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 * @version     3.0.0
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 * @package     WooCommerce\Classes
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 */
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if ( ! defined( 'ABSPATH' ) ) {
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	exit;
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}
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/**
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 * Abstract WC Data Class
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 *
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 * Implemented by classes using the same CRUD(s) pattern.
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 *
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 * @version  2.6.0
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 * @package  WooCommerce\Abstracts
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 */
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abstract class WC_Data {
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	/**
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	 * ID for this object.
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	 *
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	 * @since 3.0.0
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	 * @var int
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	 */
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	protected $id = 0;
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	/**
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	 * Core data for this object. Name value pairs (name + default value).
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	 *
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	 * @since 3.0.0
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	 * @var array
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	 */
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	protected $data = array();
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	/**
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	 * Core data changes for this object.
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	 *
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	 * @since 3.0.0
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	 * @var array
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	 */
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	protected $changes = array();
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	/**
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	 * This is false until the object is read from the DB.
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	 *
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	 * @since 3.0.0
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	 * @var bool
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	 */
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	protected $object_read = false;
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	/**
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	 * This is the name of this object type.
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	 *
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	 * @since 3.0.0
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	 * @var string
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	 */
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	protected $object_type = 'data';
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	/**
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	 * Extra data for this object. Name value pairs (name + default value).
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	 * Used as a standard way for sub classes (like product types) to add
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	 * additional information to an inherited class.
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	 *
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	 * @since 3.0.0
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	 * @var array
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	 */
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	protected $extra_data = array();
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	/**
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	 * Set to _data on construct so we can track and reset data if needed.
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	 *
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	 * @since 3.0.0
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	 * @var array
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	 */
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	protected $default_data = array();
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	/**
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	 * Contains a reference to the data store for this class.
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	 *
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	 * @since 3.0.0
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	 * @var object
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	 */
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	protected $data_store;
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	/**
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	 * Stores meta in cache for future reads.
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	 * A group must be set to to enable caching.
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	 *
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	 * @since 3.0.0
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	 * @var string
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	 */
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	protected $cache_group = '';
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	/**
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	 * Stores additional meta data.
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	 *
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	 * @since 3.0.0
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	 * @var array
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	 */
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	protected $meta_data = null;
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	/**
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	 * Default constructor.
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	 *
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	 * @param int|object|array $read ID to load from the DB (optional) or already queried data.
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	 */
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	public function __construct( $read = 0 ) {
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		$this->data         = array_merge( $this->data, $this->extra_data );
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		$this->default_data = $this->data;
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	}
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	/**
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	 * Only store the object ID to avoid serializing the data object instance.
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	 *
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	 * @return array
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	 */
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	public function __sleep() {
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		return array( 'id' );
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	}
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	/**
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	 * Re-run the constructor with the object ID.
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	 *
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	 * If the object no longer exists, remove the ID.
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	 */
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	public function __wakeup() {
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		try {
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			$this->__construct( absint( $this->id ) );
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		} catch ( Exception $e ) {
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			$this->set_id( 0 );
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			$this->set_object_read( true );
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		}
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	}
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	/**
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	 * When the object is cloned, make sure meta is duplicated correctly.
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	 *
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	 * @since 3.0.2
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	 */
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	public function __clone() {
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		$this->maybe_read_meta_data();
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		if ( ! empty( $this->meta_data ) ) {
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			foreach ( $this->meta_data as $array_key => $meta ) {
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				$this->meta_data[ $array_key ] = clone $meta;
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				if ( ! empty( $meta->id ) ) {
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					$this->meta_data[ $array_key ]->id = null;
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				}
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			}
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		}
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	}
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	/**
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	 * Get the data store.
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	 *
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	 * @since  3.0.0
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	 * @return object
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	 */
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	public function get_data_store() {
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		return $this->data_store;
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	}
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	/**
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	 * Returns the unique ID for this object.
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	 *
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	 * @since  2.6.0
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	 * @return int
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	 */
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	public function get_id() {
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		return $this->id;
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	}
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	/**
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	 * Delete an object, set the ID to 0, and return result.
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	 *
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	 * @since  2.6.0
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	 * @param  bool $force_delete Should the date be deleted permanently.
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	 * @return bool result
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	 */
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	public function delete( $force_delete = false ) {
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		if ( $this->data_store ) {
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			$this->data_store->delete( $this, array( 'force_delete' => $force_delete ) );
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			$this->set_id( 0 );
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			return true;
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		}
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		return false;
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	}
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	/**
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	 * Save should create or update based on object existence.
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	 *
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	 * @since  2.6.0
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	 * @return int
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	 */
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	public function save() {
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		if ( ! $this->data_store ) {
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			return $this->get_id();
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		}
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		/**
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		 * Trigger action before saving to the DB. Allows you to adjust object props before save.
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		 *
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		 * @param WC_Data          $this The object being saved.
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		 * @param WC_Data_Store_WP $data_store THe data store persisting the data.
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		 */
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		do_action( 'woocommerce_before_' . $this->object_type . '_object_save', $this, $this->data_store );
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		if ( $this->get_id() ) {
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			$this->data_store->update( $this );
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		} else {
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			$this->data_store->create( $this );
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		}
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		/**
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		 * Trigger action after saving to the DB.
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		 *
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		 * @param WC_Data          $this The object being saved.
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		 * @param WC_Data_Store_WP $data_store THe data store persisting the data.
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		 */
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		do_action( 'woocommerce_after_' . $this->object_type . '_object_save', $this, $this->data_store );
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		return $this->get_id();
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	}
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	/**
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	 * Change data to JSON format.
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	 *
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	 * @since  2.6.0
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	 * @return string Data in JSON format.
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	 */
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	public function __toString() {
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		return wp_json_encode( $this->get_data() );
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	}
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	/**
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	 * Returns all data for this object.
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	 *
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	 * @since  2.6.0
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	 * @return array
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	 */
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	public function get_data() {
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		return array_merge( array( 'id' => $this->get_id() ), $this->data, array( 'meta_data' => $this->get_meta_data() ) );
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	}
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	/**
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	 * Returns array of expected data keys for this object.
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	 *
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	 * @since   3.0.0
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	 * @return array
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	 */
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	public function get_data_keys() {
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		return array_keys( $this->data );
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	}
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	/**
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	 * Returns all "extra" data keys for an object (for sub objects like product types).
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	 *
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	 * @since  3.0.0
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	 * @return array
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	 */
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	public function get_extra_data_keys() {
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		return array_keys( $this->extra_data );
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	}
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	/**
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	 * Filter null meta values from array.
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	 *
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	 * @since  3.0.0
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	 * @param mixed $meta Meta value to check.
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	 * @return bool
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	 */
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	protected function filter_null_meta( $meta ) {
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		return ! is_null( $meta->value );
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	}
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	/**
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	 * Get All Meta Data.
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	 *
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	 * @since 2.6.0
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	 * @return array of objects.
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	 */
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	public function get_meta_data() {
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		$this->maybe_read_meta_data();
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		return array_values( array_filter( $this->meta_data, array( $this, 'filter_null_meta' ) ) );
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	}
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	/**
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	 * Check if the key is an internal one.
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	 *
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	 * @since  3.2.0
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	 * @param  string $key Key to check.
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	 * @return bool   true if it's an internal key, false otherwise
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	 */
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	protected function is_internal_meta_key( $key ) {
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		$internal_meta_key = ! empty( $key ) && $this->data_store && in_array( $key, $this->data_store->get_internal_meta_keys(), true );
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		if ( ! $internal_meta_key ) {
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			return false;
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		}
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		$has_setter_or_getter = is_callable( array( $this, 'set_' . $key ) ) || is_callable( array( $this, 'get_' . $key ) );
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		if ( ! $has_setter_or_getter ) {
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			return false;
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		}
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		/* translators: %s: $key Key to check */
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		wc_doing_it_wrong( __FUNCTION__, sprintf( __( 'Generic add/update/get meta methods should not be used for internal meta data, including "%s". Use getters and setters.', 'woocommerce' ), $key ), '3.2.0' );
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		return true;
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	}
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	/**
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	 * Get Meta Data by Key.
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	 *
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	 * @since  2.6.0
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	 * @param  string $key Meta Key.
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	 * @param  bool   $single return first found meta with key, or all with $key.
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	 * @param  string $context What the value is for. Valid values are view and edit.
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	 * @return mixed
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	 */
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	public function get_meta( $key = '', $single = true, $context = 'view' ) {
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		if ( $this->is_internal_meta_key( $key ) ) {
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			$function = 'get_' . $key;
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			if ( is_callable( array( $this, $function ) ) ) {
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				return $this->{$function}();
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			}
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		}
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		$this->maybe_read_meta_data();
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		$meta_data  = $this->get_meta_data();
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		$array_keys = array_keys( wp_list_pluck( $meta_data, 'key' ), $key, true );
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		$value      = $single ? '' : array();
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		if ( ! empty( $array_keys ) ) {
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			// We don't use the $this->meta_data property directly here because we don't want meta with a null value (i.e. meta which has been deleted via $this->delete_meta_data()).
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			if ( $single ) {
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				$value = $meta_data[ current( $array_keys ) ]->value;
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			} else {
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				$value = array_intersect_key( $meta_data, array_flip( $array_keys ) );
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			}
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		}
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		if ( 'view' === $context ) {
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			$value = apply_filters( $this->get_hook_prefix() . $key, $value, $this );
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		}
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		return $value;
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	}
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	/**
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	 * See if meta data exists, since get_meta always returns a '' or array().
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	 *
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	 * @since  3.0.0
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	 * @param  string $key Meta Key.
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	 * @return boolean
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	 */
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	public function meta_exists( $key = '' ) {
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		$this->maybe_read_meta_data();
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		$array_keys = wp_list_pluck( $this->get_meta_data(), 'key' );
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		return in_array( $key, $array_keys, true );
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	}
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	/**
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	 * Set all meta data from array.
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	 *
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	 * @since 2.6.0
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	 * @param array $data Key/Value pairs.
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	 */
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	public function set_meta_data( $data ) {
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		if ( ! empty( $data ) && is_array( $data ) ) {
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			$this->maybe_read_meta_data();
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			foreach ( $data as $meta ) {
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				$meta = (array) $meta;
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				if ( isset( $meta['key'], $meta['value'], $meta['id'] ) ) {
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					$this->meta_data[] = new WC_Meta_Data(
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						array(
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							'id'    => $meta['id'],
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							'key'   => $meta['key'],
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							'value' => $meta['value'],
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						)
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					);
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				}
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			}
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		}
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	}
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	/**
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	 * Add meta data.
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	 *
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	 * @since 2.6.0
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	 *
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	 * @param string       $key Meta key.
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	 * @param string|array $value Meta value.
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	 * @param bool         $unique Should this be a unique key?.
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	 */
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	public function add_meta_data( $key, $value, $unique = false ) {
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		if ( $this->is_internal_meta_key( $key ) ) {
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			$function = 'set_' . $key;
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			if ( is_callable( array( $this, $function ) ) ) {
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				return $this->{$function}( $value );
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			}
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		}
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		$this->maybe_read_meta_data();
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		if ( $unique ) {
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			$this->delete_meta_data( $key );
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		}
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		$this->meta_data[] = new WC_Meta_Data(
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			array(
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				'key'   => $key,
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				'value' => $value,
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			)
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		);
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	}
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	/**
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	 * Update meta data by key or ID, if provided.
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	 *
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	 * @since  2.6.0
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	 *
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	 * @param  string       $key Meta key.
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	 * @param  string|array $value Meta value.
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	 * @param  int          $meta_id Meta ID.
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	 */
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	public function update_meta_data( $key, $value, $meta_id = 0 ) {
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		if ( $this->is_internal_meta_key( $key ) ) {
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			$function = 'set_' . $key;
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			if ( is_callable( array( $this, $function ) ) ) {
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				return $this->{$function}( $value );
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			}
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		}
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		$this->maybe_read_meta_data();
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		$array_key = false;
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		if ( $meta_id ) {
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			$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), $meta_id, true );
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			$array_key  = $array_keys ? current( $array_keys ) : false;
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		} else {
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			// Find matches by key.
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			$matches = array();
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			foreach ( $this->meta_data as $meta_data_array_key => $meta ) {
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				if ( $meta->key === $key ) {
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					$matches[] = $meta_data_array_key;
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				}
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			}
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			if ( ! empty( $matches ) ) {
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				// Set matches to null so only one key gets the new value.
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				foreach ( $matches as $meta_data_array_key ) {
 | 
						|
					$this->meta_data[ $meta_data_array_key ]->value = null;
 | 
						|
				}
 | 
						|
				$array_key = current( $matches );
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		if ( false !== $array_key ) {
 | 
						|
			$meta        = $this->meta_data[ $array_key ];
 | 
						|
			$meta->key   = $key;
 | 
						|
			$meta->value = $value;
 | 
						|
		} else {
 | 
						|
			$this->add_meta_data( $key, $value, true );
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Delete meta data.
 | 
						|
	 *
 | 
						|
	 * @since 2.6.0
 | 
						|
	 * @param string $key Meta key.
 | 
						|
	 */
 | 
						|
	public function delete_meta_data( $key ) {
 | 
						|
		$this->maybe_read_meta_data();
 | 
						|
		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'key' ), $key, true );
 | 
						|
 | 
						|
		if ( $array_keys ) {
 | 
						|
			foreach ( $array_keys as $array_key ) {
 | 
						|
				$this->meta_data[ $array_key ]->value = null;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Delete meta data.
 | 
						|
	 *
 | 
						|
	 * @since 2.6.0
 | 
						|
	 * @param int $mid Meta ID.
 | 
						|
	 */
 | 
						|
	public function delete_meta_data_by_mid( $mid ) {
 | 
						|
		$this->maybe_read_meta_data();
 | 
						|
		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), (int) $mid, true );
 | 
						|
 | 
						|
		if ( $array_keys ) {
 | 
						|
			foreach ( $array_keys as $array_key ) {
 | 
						|
				$this->meta_data[ $array_key ]->value = null;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Read meta data if null.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 */
 | 
						|
	protected function maybe_read_meta_data() {
 | 
						|
		if ( is_null( $this->meta_data ) ) {
 | 
						|
			$this->read_meta_data();
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Helper method to compute meta cache key. Different from WP Meta cache key in that meta data cached using this key also contains meta_id column.
 | 
						|
	 *
 | 
						|
	 * @since 4.7.0
 | 
						|
	 *
 | 
						|
	 * @return string
 | 
						|
	 */
 | 
						|
	public function get_meta_cache_key() {
 | 
						|
		if ( ! $this->get_id() ) {
 | 
						|
			wc_doing_it_wrong( 'get_meta_cache_key', 'ID needs to be set before fetching a cache key.', '4.7.0' );
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
		return self::generate_meta_cache_key( $this->get_id(), $this->cache_group );
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Generate cache key from id and group.
 | 
						|
	 *
 | 
						|
	 * @since 4.7.0
 | 
						|
	 *
 | 
						|
	 * @param int|string $id          Object ID.
 | 
						|
	 * @param string     $cache_group Group name use to store cache. Whole group cache can be invalidated in one go.
 | 
						|
	 *
 | 
						|
	 * @return string Meta cache key.
 | 
						|
	 */
 | 
						|
	public static function generate_meta_cache_key( $id, $cache_group ) {
 | 
						|
		return WC_Cache_Helper::get_cache_prefix( $cache_group ) . WC_Cache_Helper::get_cache_prefix( 'object_' . $id ) . 'object_meta_' . $id;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Prime caches for raw meta data. This includes meta_id column as well, which is not included by default in WP meta data.
 | 
						|
	 *
 | 
						|
	 * @since 4.7.0
 | 
						|
	 *
 | 
						|
	 * @param array  $raw_meta_data_collection Array of objects of { object_id => array( meta_row_1, meta_row_2, ... }.
 | 
						|
	 * @param string $cache_group              Name of cache group.
 | 
						|
	 */
 | 
						|
	public static function prime_raw_meta_data_cache( $raw_meta_data_collection, $cache_group ) {
 | 
						|
		foreach ( $raw_meta_data_collection as $object_id => $raw_meta_data_array ) {
 | 
						|
			$cache_key = self::generate_meta_cache_key( $object_id, $cache_group );
 | 
						|
			wp_cache_set( $cache_key, $raw_meta_data_array, $cache_group );
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Read Meta Data from the database. Ignore any internal properties.
 | 
						|
	 * Uses it's own caches because get_metadata does not provide meta_ids.
 | 
						|
	 *
 | 
						|
	 * @since 2.6.0
 | 
						|
	 * @param bool $force_read True to force a new DB read (and update cache).
 | 
						|
	 */
 | 
						|
	public function read_meta_data( $force_read = false ) {
 | 
						|
		$this->meta_data = array();
 | 
						|
		$cache_loaded    = false;
 | 
						|
 | 
						|
		if ( ! $this->get_id() ) {
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		if ( ! $this->data_store ) {
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		if ( ! empty( $this->cache_group ) ) {
 | 
						|
			// Prefix by group allows invalidation by group until https://core.trac.wordpress.org/ticket/4476 is implemented.
 | 
						|
			$cache_key = $this->get_meta_cache_key();
 | 
						|
		}
 | 
						|
 | 
						|
		if ( ! $force_read ) {
 | 
						|
			if ( ! empty( $this->cache_group ) ) {
 | 
						|
				$cached_meta  = wp_cache_get( $cache_key, $this->cache_group );
 | 
						|
				$cache_loaded = ! empty( $cached_meta );
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		// We filter the raw meta data again when loading from cache, in case we cached in an earlier version where filter conditions were different.
 | 
						|
		$raw_meta_data = $cache_loaded ? $this->data_store->filter_raw_meta_data( $this, $cached_meta ) : $this->data_store->read_meta( $this );
 | 
						|
 | 
						|
		if ( $raw_meta_data ) {
 | 
						|
			foreach ( $raw_meta_data as $meta ) {
 | 
						|
				$this->meta_data[] = new WC_Meta_Data(
 | 
						|
					array(
 | 
						|
						'id'    => (int) $meta->meta_id,
 | 
						|
						'key'   => $meta->meta_key,
 | 
						|
						'value' => maybe_unserialize( $meta->meta_value ),
 | 
						|
					)
 | 
						|
				);
 | 
						|
			}
 | 
						|
 | 
						|
			if ( ! $cache_loaded && ! empty( $this->cache_group ) ) {
 | 
						|
				wp_cache_set( $cache_key, $raw_meta_data, $this->cache_group );
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Update Meta Data in the database.
 | 
						|
	 *
 | 
						|
	 * @since 2.6.0
 | 
						|
	 */
 | 
						|
	public function save_meta_data() {
 | 
						|
		if ( ! $this->data_store || is_null( $this->meta_data ) ) {
 | 
						|
			return;
 | 
						|
		}
 | 
						|
		foreach ( $this->meta_data as $array_key => $meta ) {
 | 
						|
			if ( is_null( $meta->value ) ) {
 | 
						|
				if ( ! empty( $meta->id ) ) {
 | 
						|
					$this->data_store->delete_meta( $this, $meta );
 | 
						|
					unset( $this->meta_data[ $array_key ] );
 | 
						|
				}
 | 
						|
			} elseif ( empty( $meta->id ) ) {
 | 
						|
				$meta->id = $this->data_store->add_meta( $this, $meta );
 | 
						|
				$meta->apply_changes();
 | 
						|
			} else {
 | 
						|
				if ( $meta->get_changes() ) {
 | 
						|
					$this->data_store->update_meta( $this, $meta );
 | 
						|
					$meta->apply_changes();
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
		if ( ! empty( $this->cache_group ) ) {
 | 
						|
			$cache_key = WC_Cache_Helper::get_cache_prefix( $this->cache_group ) . WC_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
 | 
						|
			wp_cache_delete( $cache_key, $this->cache_group );
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Set ID.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @param int $id ID.
 | 
						|
	 */
 | 
						|
	public function set_id( $id ) {
 | 
						|
		$this->id = absint( $id );
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Set all props to default values.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 */
 | 
						|
	public function set_defaults() {
 | 
						|
		$this->data    = $this->default_data;
 | 
						|
		$this->changes = array();
 | 
						|
		$this->set_object_read( false );
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Set object read property.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @param boolean $read Should read?.
 | 
						|
	 */
 | 
						|
	public function set_object_read( $read = true ) {
 | 
						|
		$this->object_read = (bool) $read;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Get object read property.
 | 
						|
	 *
 | 
						|
	 * @since  3.0.0
 | 
						|
	 * @return boolean
 | 
						|
	 */
 | 
						|
	public function get_object_read() {
 | 
						|
		return (bool) $this->object_read;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Set a collection of props in one go, collect any errors, and return the result.
 | 
						|
	 * Only sets using public methods.
 | 
						|
	 *
 | 
						|
	 * @since  3.0.0
 | 
						|
	 *
 | 
						|
	 * @param array  $props Key value pairs to set. Key is the prop and should map to a setter function name.
 | 
						|
	 * @param string $context In what context to run this.
 | 
						|
	 *
 | 
						|
	 * @return bool|WP_Error
 | 
						|
	 */
 | 
						|
	public function set_props( $props, $context = 'set' ) {
 | 
						|
		$errors = false;
 | 
						|
 | 
						|
		foreach ( $props as $prop => $value ) {
 | 
						|
			try {
 | 
						|
				/**
 | 
						|
				 * Checks if the prop being set is allowed, and the value is not null.
 | 
						|
				 */
 | 
						|
				if ( is_null( $value ) || in_array( $prop, array( 'prop', 'date_prop', 'meta_data' ), true ) ) {
 | 
						|
					continue;
 | 
						|
				}
 | 
						|
				$setter = "set_$prop";
 | 
						|
 | 
						|
				if ( is_callable( array( $this, $setter ) ) ) {
 | 
						|
					$this->{$setter}( $value );
 | 
						|
				}
 | 
						|
			} catch ( WC_Data_Exception $e ) {
 | 
						|
				if ( ! $errors ) {
 | 
						|
					$errors = new WP_Error();
 | 
						|
				}
 | 
						|
				$errors->add( $e->getErrorCode(), $e->getMessage() );
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		return $errors && count( $errors->get_error_codes() ) ? $errors : true;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Sets a prop for a setter method.
 | 
						|
	 *
 | 
						|
	 * This stores changes in a special array so we can track what needs saving
 | 
						|
	 * the the DB later.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @param string $prop Name of prop to set.
 | 
						|
	 * @param mixed  $value Value of the prop.
 | 
						|
	 */
 | 
						|
	protected function set_prop( $prop, $value ) {
 | 
						|
		if ( array_key_exists( $prop, $this->data ) ) {
 | 
						|
			if ( true === $this->object_read ) {
 | 
						|
				if ( $value !== $this->data[ $prop ] || array_key_exists( $prop, $this->changes ) ) {
 | 
						|
					$this->changes[ $prop ] = $value;
 | 
						|
				}
 | 
						|
			} else {
 | 
						|
				$this->data[ $prop ] = $value;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Return data changes only.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @return array
 | 
						|
	 */
 | 
						|
	public function get_changes() {
 | 
						|
		return $this->changes;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Merge changes with data and clear.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 */
 | 
						|
	public function apply_changes() {
 | 
						|
		$this->data    = array_replace_recursive( $this->data, $this->changes ); // @codingStandardsIgnoreLine
 | 
						|
		$this->changes = array();
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Prefix for action and filter hooks on data.
 | 
						|
	 *
 | 
						|
	 * @since  3.0.0
 | 
						|
	 * @return string
 | 
						|
	 */
 | 
						|
	protected function get_hook_prefix() {
 | 
						|
		return 'woocommerce_' . $this->object_type . '_get_';
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Gets a prop for a getter method.
 | 
						|
	 *
 | 
						|
	 * Gets the value from either current pending changes, or the data itself.
 | 
						|
	 * Context controls what happens to the value before it's returned.
 | 
						|
	 *
 | 
						|
	 * @since  3.0.0
 | 
						|
	 * @param  string $prop Name of prop to get.
 | 
						|
	 * @param  string $context What the value is for. Valid values are view and edit.
 | 
						|
	 * @return mixed
 | 
						|
	 */
 | 
						|
	protected function get_prop( $prop, $context = 'view' ) {
 | 
						|
		$value = null;
 | 
						|
 | 
						|
		if ( array_key_exists( $prop, $this->data ) ) {
 | 
						|
			$value = array_key_exists( $prop, $this->changes ) ? $this->changes[ $prop ] : $this->data[ $prop ];
 | 
						|
 | 
						|
			if ( 'view' === $context ) {
 | 
						|
				$value = apply_filters( $this->get_hook_prefix() . $prop, $value, $this );
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		return $value;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Sets a date prop whilst handling formatting and datetime objects.
 | 
						|
	 *
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @param string         $prop Name of prop to set.
 | 
						|
	 * @param string|integer $value Value of the prop.
 | 
						|
	 */
 | 
						|
	protected function set_date_prop( $prop, $value ) {
 | 
						|
		try {
 | 
						|
			if ( empty( $value ) ) {
 | 
						|
				$this->set_prop( $prop, null );
 | 
						|
				return;
 | 
						|
			}
 | 
						|
 | 
						|
			if ( is_a( $value, 'WC_DateTime' ) ) {
 | 
						|
				$datetime = $value;
 | 
						|
			} elseif ( is_numeric( $value ) ) {
 | 
						|
				// Timestamps are handled as UTC timestamps in all cases.
 | 
						|
				$datetime = new WC_DateTime( "@{$value}", new DateTimeZone( 'UTC' ) );
 | 
						|
			} else {
 | 
						|
				// Strings are defined in local WP timezone. Convert to UTC.
 | 
						|
				if ( 1 === preg_match( '/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(Z|((-|\+)\d{2}:\d{2}))$/', $value, $date_bits ) ) {
 | 
						|
					$offset    = ! empty( $date_bits[7] ) ? iso8601_timezone_to_offset( $date_bits[7] ) : wc_timezone_offset();
 | 
						|
					$timestamp = gmmktime( $date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1] ) - $offset;
 | 
						|
				} else {
 | 
						|
					$timestamp = wc_string_to_timestamp( get_gmt_from_date( gmdate( 'Y-m-d H:i:s', wc_string_to_timestamp( $value ) ) ) );
 | 
						|
				}
 | 
						|
				$datetime = new WC_DateTime( "@{$timestamp}", new DateTimeZone( 'UTC' ) );
 | 
						|
			}
 | 
						|
 | 
						|
			// Set local timezone or offset.
 | 
						|
			if ( get_option( 'timezone_string' ) ) {
 | 
						|
				$datetime->setTimezone( new DateTimeZone( wc_timezone_string() ) );
 | 
						|
			} else {
 | 
						|
				$datetime->set_utc_offset( wc_timezone_offset() );
 | 
						|
			}
 | 
						|
 | 
						|
			$this->set_prop( $prop, $datetime );
 | 
						|
		} catch ( Exception $e ) {} // @codingStandardsIgnoreLine.
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * When invalid data is found, throw an exception unless reading from the DB.
 | 
						|
	 *
 | 
						|
	 * @throws WC_Data_Exception Data Exception.
 | 
						|
	 * @since 3.0.0
 | 
						|
	 * @param string $code             Error code.
 | 
						|
	 * @param string $message          Error message.
 | 
						|
	 * @param int    $http_status_code HTTP status code.
 | 
						|
	 * @param array  $data             Extra error data.
 | 
						|
	 */
 | 
						|
	protected function error( $code, $message, $http_status_code = 400, $data = array() ) {
 | 
						|
		throw new WC_Data_Exception( $code, $message, $http_status_code, $data );
 | 
						|
	}
 | 
						|
}
 |