[Product CRUD] Getter setter proxy methods (#12236)

* Started on variation changes

* Stock functions

* Variation class

* Bulk change ->id to get_id() to fix variation form display

* Missing status

* Fix add to cart

* Start on stored data save

* save variation

* Save_variations

* Variation edit panel

* Save variations code works.

* Remove stored data code and fix save

* Improve legacy class

* wc_bool_to_string

* prepare_set_attributes

* Use wc_get_products

* More feedback fixes

* get_prop implementation in abstract and data classes

* Implement set_prop

* Change handling

* Array key exists

* set_object_read

includes/abstracts/abstract-wc-data.php

@@ -27,6 +27,18 @@ abstract class WC_Data {
 	 */
 	protected $data = array();
 
+	/**
+	 * Core data changes for this object.
+	 * @var array
+	 */
+	protected $changes = array();
+
+	/**
+	 * This is false until the object is read from the DB.
+	 * @var bool
+	 */
+	protected $object_read = false;
+
 	/**
 	 * Set to _data on construct so we can track and reset data if needed.
 	 * @var array
@@ -106,8 +118,18 @@ abstract class WC_Data {
 
 	/**
 	 * Save should create or update based on object existance.
+	 *
+	 * @return int
 	 */
-	public function save() {}
+	public function save() {
+		if ( $this->get_id() ) {
+			$this->update();
+		} else {
+			$this->create();
+		}
+		$this->apply_changes();
+		return $this->get_id();
+	}
 
 	/**
 	 * Change data to JSON format.
@@ -402,6 +424,16 @@ abstract class WC_Data {
 	 */
 	protected function set_defaults() {
 		$this->data        = $this->default_data;
+		$this->changes     = array();
+		$this->set_object_read( false );
+	}
+
+	/**
+	 * Set object read property.
+	 * @param boolean $read
+	 */
+	public function set_object_read( $read = true ) {
+		$this->object_read = (bool) $read;
 	}
 
 	/**
@@ -410,7 +442,7 @@ abstract class WC_Data {
 	 * @param array $props Key value pairs to set. Key is the prop and should map to a setter function name.
 	 * @return WP_Error|bool
 	 */
-	public function set_props( $props ) {
+	public function set_props( $props, $context = 'set' ) {
 		$errors = new WP_Error();
 
 		foreach ( $props as $prop => $value ) {
@@ -434,6 +466,80 @@ abstract class WC_Data {
 		return sizeof( $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 2.7.0
+	 * @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 ) {
+				$this->changes[ $prop ] = $value;
+			} else {
+				$this->data[ $prop ] = $value;
+			}
+		}
+	}
+
+	/**
+	 * Return data changes only.
+	 *
+	 * @since 2.7.0
+	 * @return array
+	 */
+	protected function get_changes() {
+		return $this->changes;
+	}
+
+	/**
+	 * Merge changes with data and clear.
+	 *
+	 * @since 2.7.0
+	 */
+	protected function apply_changes() {
+		$this->data = array_merge( $this->data, $this->changes );
+		$this->changes = array();
+	}
+
+	/**
+	 * Prefix for action and filter hooks on data.
+	 *
+	 * @since  2.7.0
+	 * @return string
+	 */
+	protected function get_hook_prefix() {
+		return 'woocommerce_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  2.7.0
+	 * @param  string $prop Name of prop to get.
+	 * @param  string $context What the value is for. Valid values are view and edit.
+	 * @return mixed
+	 */
+	public function get_prop( $prop, $context = 'view' ) {
+		$value = null;
+
+		if ( array_key_exists( $prop, $this->data ) ) {
+			$value = isset( $this->changes[ $prop ] ) ? $this->changes[ $prop ] : $this->data[ $prop ];
+
+			if ( 'view' === $context ) {
+				$value = apply_filters( $this->get_hook_prefix() . $prop, $value, $this );
+			}
+		}
+		return $value;
+	}
+
 	/**
 	 * When invalid data is found, throw an exception unless reading from the DB.
 	 * @param string $error_code Error code.

includes/class-wc-product-external.php

@@ -35,6 +35,14 @@ class WC_Product_External extends WC_Product {
 		parent::__construct( $product );
 	}
 
+	/**
+	 * Get internal type.
+	 * @return string
+	 */
+	public function get_type() {
+		return 'external';
+	}
+
 	/*
 	|--------------------------------------------------------------------------
 	| Getters
@@ -43,30 +51,24 @@ class WC_Product_External extends WC_Product {
 	| Methods for getting data from the product object.
 	*/
 
-	/**
-	 * Get internal type.
-	 * @return string
-	 */
-	public function get_type() {
-		return 'external';
-	}
-
 	/**
 	 * Get product url.
 	 *
+	 * @param  string $context
 	 * @return string
 	 */
-	public function get_product_url() {
+	public function get_product_url( $context = 'view' ) {
-		return esc_url( $this->data['product_url'] );
+		return esc_url( $this->get_prop( 'product_url', $context ) );
 	}
 
 	/**
 	 * Get button text.
 	 *
+	 * @param  string $context
 	 * @return string
 	 */
-	public function get_button_text() {
+	public function get_button_text( $context = 'view' ) {
-		return $this->data['button_text'] ? $this->data['button_text'] : __( 'Buy product', 'woocommerce' );
+		return $this->get_prop( 'button_text', $context );
 	}
 
 	/*
@@ -86,7 +88,7 @@ class WC_Product_External extends WC_Product {
 	 * @param string $product_url Product URL.
 	 */
 	public function set_product_url( $product_url ) {
-		$this->data['product_url'] = $product_url;
+		$this->set_prop( 'product_url', $product_url );
 	}
 
 	/**
@@ -96,7 +98,7 @@ class WC_Product_External extends WC_Product {
 	 * @param string $button_text Button text.
 	 */
 	public function set_button_text( $button_text ) {
-		$this->data['button_text'] = $button_text;
+		$this->set_prop( 'button_text', $button_text );
 	}
 
 	/**
@@ -106,7 +108,7 @@ class WC_Product_External extends WC_Product {
 	 * @param bool
 	 */
 	public function set_manage_stock( $manage_stock ) {
-		$this->data['manage_stock'] = false;
+		$this->set_prop( 'manage_stock', false );
 
 		if ( true === $manage_stock ) {
 			$this->error( 'product_external_invalid_manage_stock', __( 'External products cannot be stock managed.', 'woocommerce' ) );
@@ -120,7 +122,7 @@ class WC_Product_External extends WC_Product {
 	 * @param bool
 	 */
 	public function set_stock_status( $stock_status ) {
-		$this->data['stock_status'] = 'instock';
+		$this->set_prop( 'stock_status', 'instock' );
 
 		if ( 'instock' !== $stock_status ) {
 			$this->error( 'product_external_invalid_stock_status', __( 'External products cannot be stock managed.', 'woocommerce' ) );
@@ -134,7 +136,7 @@ class WC_Product_External extends WC_Product {
 	 * @param string $backorders Options: 'yes', 'no' or 'notify'.
 	 */
 	public function set_backorders( $backorders ) {
-		$this->data['backorders'] = 'no';
+		$this->set_prop( 'backorders', 'no' );
 
 		if ( 'no' !== $backorders ) {
 			$this->error( 'product_external_invalid_backorders', __( 'External products cannot be backordered.', 'woocommerce' ) );
@@ -194,19 +196,17 @@ class WC_Product_External extends WC_Product {
 	*/
 
 	/**
-	 * Reads a product from the database and sets its data to the class.
+	 * Read post data.
 	 *
 	 * @since 2.7.0
-	 * @param int $id Product ID.
 	 */
-	public function read( $id ) {
+	protected function read_product_data() {
-		parent::read( $id );
+		parent::read_product_data();
+
 		$this->set_props( array(
-			'product_url' => get_post_meta( $id, '_product_url', true ),
+			'product_url' => get_post_meta( $this->get_id(), '_product_url', true ),
-			'button_text' => get_post_meta( $id, '_button_text', true ),
+			'button_text' => get_post_meta( $this->get_id(), '_button_text', true ) ? get_post_meta( $this->get_id(), '_button_text', true ) : __( 'Buy product', 'woocommerce' ),
 		) );
-		do_action( 'woocommerce_product_loaded', $this );
-		do_action( 'woocommerce_product_' . $this->get_type() . '_loaded', $this );
 	}
 
 	/**

includes/class-wc-product-grouped.php

@@ -34,14 +34,6 @@ class WC_Product_Grouped extends WC_Product {
 		parent::__construct( $product );
 	}
 
-	/*
-	|--------------------------------------------------------------------------
-	| Getters
-	|--------------------------------------------------------------------------
-	|
-	| Methods for getting data from the product object.
-	*/
-
 	/**
 	 * Get internal type.
 	 * @return string
@@ -50,15 +42,6 @@ class WC_Product_Grouped extends WC_Product {
 		return 'grouped';
 	}
 
-	/**
-	 * Return the children of this product.
-	 *
-	 * @return array
-	 */
-	public function get_children() {
-		return $this->data['children'];
-	}
-
 	/**
 	 * Get the add to cart button text.
 	 *
@@ -131,6 +114,24 @@ class WC_Product_Grouped extends WC_Product {
 		return apply_filters( 'woocommerce_get_price_html', $price, $this );
 	}
 
+	/*
+	|--------------------------------------------------------------------------
+	| Getters
+	|--------------------------------------------------------------------------
+	|
+	| Methods for getting data from the product object.
+	*/
+
+	/**
+	 * Return the children of this product.
+	 *
+	 * @param  string $context
+	 * @return array
+	 */
+	public function get_children( $context = 'view' ) {
+		return $this->get_prop( 'children', $context );
+	}
+
 	/*
 	|--------------------------------------------------------------------------
 	| Setters
@@ -145,7 +146,7 @@ class WC_Product_Grouped extends WC_Product {
 	 * @param array $children
 	 */
 	public function set_children( $children ) {
-		$this->data['children'] = array_filter( wp_parse_id_list( (array) $children ) );
+		$this->set_prop( 'children', array_filter( wp_parse_id_list( (array) $children ) ) );
 	}
 
 	/*
@@ -155,19 +156,16 @@ class WC_Product_Grouped extends WC_Product {
 	*/
 
 	/**
-	 * Reads a product from the database and sets its data to the class.
+	 * Read post data.
 	 *
 	 * @since 2.7.0
-	 * @param int $id Product ID.
 	 */
-	public function read( $id ) {
+	protected function read_product_data() {
-		parent::read( $id );
+		parent::read_product_data();
 
 		$this->set_props( array(
-			'children' => wp_parse_id_list( get_post_meta( $id, '_children', true ) ),
+			'children' => wp_parse_id_list( get_post_meta( $this->get_id(), '_children', true ) ),
 		) );
-		do_action( 'woocommerce_product_loaded', $this );
-		do_action( 'woocommerce_product_' . $this->get_type() . '_loaded', $this );
 	}
 
 	/**

includes/class-wc-product-simple.php

@@ -57,7 +57,7 @@ class WC_Product_Simple extends WC_Product {
 	}
 
 	/**
-	 * Get the title of the post.
+	 * Get the title of the post. @todo should this be deprecated or not? It's in deprecated class and needs review.
 	 *
 	 * @return string
 	 */

includes/class-wc-product-variable.php

@@ -4,7 +4,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /**
- * Variable Product Class.
+ * Variable Product Class. @todo needs new getters/setters/changes code
  *
  * The WooCommerce product class handles individual product data.
  *

includes/class-wc-product-variation.php

@@ -4,7 +4,14 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /**
- * Product Variation Class.
+ * Product Variation Class. @todo needs new getters/setters/changes code
+ *
+ * @todo removed filters need to be mapped via add_action to the product actions of similar naming.
+ *       woocommerce_variation_is_in_stock
+ *       woocommerce_variation_sale_price_html
+ *       woocommerce_variation_price_html
+ *       woocommerce_variation_free_price_html
+ *       woocommerce_get_variation_price_html
  *
  * @todo removed filters need to be mapped via add_action to the product actions of similar naming.
  *       woocommerce_variation_is_in_stock

includes/wc-deprecated-functions.php

@@ -514,6 +514,14 @@ $wc_map_deprecated_filters = array(
 	'woocommerce_product_get_height'            => 'woocommerce_product_height',
 	'woocommerce_product_get_length'            => 'woocommerce_product_length',
 	'woocommerce_product_get_weight'            => 'woocommerce_product_weight',
+	'woocommerce_product_get_sku'               => 'woocommerce_get_sku',
+	'woocommerce_product_get_price'             => 'woocommerce_get_price',
+	'woocommerce_product_get_regular_price'     => 'woocommerce_get_regular_price',
+	'woocommerce_product_get_sale_price'        => 'woocommerce_get_sale_price',
+	'woocommerce_product_get_tax_class'         => 'woocommerce_product_tax_class',
+	'woocommerce_product_get_stock_quantity'    => 'woocommerce_get_stock_quantity',
+	'woocommerce_product_get_attributes'        => 'woocommerce_get_product_attributes',
+	'woocommerce_product_get_gallery_image_ids' => 'woocommerce_product_gallery_attachment_ids',
 );
 
 foreach ( $wc_map_deprecated_filters as $new => $old ) {