refactor(2meet-data-optimizer): stop registering the wc_product post group

- WooCommerce reads product meta directly and writes stock by SQL, so a flat copy drifted (R-2.1 V1 T4); product meta now stays in native only (plan decision 2). TMDO_Post_Fields registers wp_core, attachment and nav_menu_item. Existing wp_wpdo_post_wc_product tables are left in place and still dropped on uninstall; the orphan restore registers nothing for them while native meta holds the keys; `wp tmdo bridge-restore-native post --group=wc_product --retire` archives them.
- Tests that route products register the former group themselves (tmdo_test_register_wc_product_group(), same name and table); live router Q06 runs on wp_core's _wp_page_template instead of _sku. The post stress tester already skips flat tables that do not exist.
- Verify: PostFieldsRegistrationTest (RED before); dev36: wc_product absent from the registry and not restored as an orphan, a CLI order took stock 452 → 450 in native with no DB error (reverted), drift post 10 groups 0.
- PR: PR-077

cli/class-tmdo-cli-post.php

@@ -211,7 +211,7 @@ class TMDO_CLI_Post {
 	 *
 	 * ## EXAMPLES
 	 *
-	 *     wp wpdo post-migrate-group --group=wc_product
+	 *     wp wpdo post-migrate-group --group=hp_listing_core
 	 *     wp wpdo post-migrate-group --group=hp_listing_core
 	 *
 	 * @param array $args       Positional arguments (unused).

includes/class-tmdo-post-shadow-verifier.php

@@ -55,7 +55,7 @@ final class TMDO_Post_Shadow_Verifier {
 	 * is available.
 	 *
 	 * @param string   $post_type   WP post_type to sample.
-	 * @param string   $group_name  Entity group name (e.g. 'wc_product').
+	 * @param string   $group_name  Entity group name (e.g. 'hp_listing_core').
 	 * @param string   $flat_table  Fully qualified flat table name.
 	 * @param string[] $keys        Meta keys to compare (each post checks all).
 	 * @param int      $sample_size Number of posts to sample (capped to DB count).

includes/integrations/class-tmdo-post-fields.php

@@ -2,19 +2,18 @@
 /**
  * Post entity field registration for WP Data Optimizer (v2.9.1).
  *
- * Registers four post entity groups designed to absorb the bulk of
+ * Registers three post entity groups designed to absorb the bulk of
  * wp_postmeta rows that previously bypassed any flat-table strategy.
  * All groups use TMDO_Entity_Registry → flat tables instead of wp_postmeta EAV.
  *
  * Groups → flat tables (post_type targets):
  *   wp_core         → wp_wpdo_post_wp_core         (cross post_type)
  *   attachment      → wp_wpdo_post_attachment      (attachment)
- *   wc_product      → wp_wpdo_post_wc_product      (product)
  *   nav_menu_item   → wp_wpdo_post_nav_menu_item   (nav_menu_item)
  *
  * Pattern mirrors TMDO_Member_Fields::register(). Called from
  * TMDO_Core::run() before the wpdo_register_entity_fields action fires;
- * Schema_Manager materializes the four flat tables in init:1
+ * Schema_Manager materializes the three flat tables in init:1
  * via process_pending_migrations() (idempotent via schema_hash compare).
  *
  * Keys not registered here (HivePress dynamic attrs, WPCS legacy keys,
@@ -39,7 +38,10 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /**
- * Registers four post entity groups.
+ * Registers three post entity groups. WooCommerce product meta is not one of
+ * them (1.2.0): WooCommerce reads it directly and writes stock by SQL, so
+ * native meta stays its only copy. Existing wp_wpdo_post_wc_product tables
+ * are left alone (see `wp tmdo bridge-restore-native post --group=wc_product --retire`).
  */
 final class TMDO_Post_Fields {
 
@@ -49,7 +51,6 @@ final class TMDO_Post_Fields {
 	 */
 	private const GROUP_POST_TYPES = array(
 		'attachment'    => 'attachment',
-		'wc_product'    => 'product',
 		'nav_menu_item' => 'nav_menu_item',
 	);
 
@@ -104,7 +105,6 @@ final class TMDO_Post_Fields {
 
 		self::register_wp_core_group();
 		self::register_attachment_group();
-		self::register_wc_product_group();
 		self::register_nav_menu_item_group();
 	}
 
@@ -176,131 +176,6 @@ final class TMDO_Post_Fields {
 		);
 	}
 
-	/**
-	 * WooCommerce product core meta keys (post_type=product).
-	 * 19 keys — covers ~94% of wp_postmeta rows for products on dev10.
-	 *
-	 * @return void
-	 */
-	private static function register_wc_product_group(): void {
-		TMDO_Entity_Registry::register_group(
-			'post',
-			'wc_product',
-			array(
-				array(
-					'key'        => '_price',
-					'type'       => 'decimal',
-					'searchable' => true,
-					'label'      => 'Effective price',
-				),
-				array(
-					'key'        => '_regular_price',
-					'type'       => 'decimal',
-					'searchable' => true,
-					'label'      => 'Regular price',
-				),
-				array(
-					'key'        => '_sale_price',
-					'type'       => 'decimal',
-					'searchable' => true,
-					'label'      => 'Sale price',
-				),
-				array(
-					'key'        => '_stock',
-					'type'       => 'integer',
-					'searchable' => true,
-					'label'      => 'Stock quantity',
-				),
-				array(
-					'key'        => '_stock_status',
-					'type'       => 'enum',
-					'searchable' => true,
-					'options'    => array( 'instock', 'outofstock', 'onbackorder' ),
-					'label'      => 'Stock status',
-				),
-				array(
-					'key'        => '_sku',
-					'type'       => 'text',
-					'searchable' => true,
-					'label'      => 'Product SKU',
-				),
-				array(
-					'key'     => '_manage_stock',
-					'type'    => 'enum',
-					'options' => array( 'yes', 'no' ),
-					'label'   => 'Manage stock?',
-				),
-				array(
-					'key'     => '_backorders',
-					'type'    => 'enum',
-					'options' => array( 'yes', 'no', 'notify' ),
-					'label'   => 'Allow backorders?',
-				),
-				array(
-					'key'     => '_sold_individually',
-					'type'    => 'enum',
-					'options' => array( 'yes', 'no' ),
-					'label'   => 'Sold individually?',
-				),
-				array(
-					'key'     => '_virtual',
-					'type'    => 'enum',
-					'options' => array( 'yes', 'no' ),
-					'label'   => 'Virtual product?',
-				),
-				array(
-					'key'     => '_downloadable',
-					'type'    => 'enum',
-					'options' => array( 'yes', 'no' ),
-					'label'   => 'Downloadable?',
-				),
-				array(
-					'key'   => '_tax_class',
-					'type'  => 'text',
-					'label' => 'Tax class slug',
-				),
-				array(
-					'key'     => '_tax_status',
-					'type'    => 'enum',
-					'options' => array( 'taxable', 'shipping', 'none' ),
-					'label'   => 'Tax status',
-				),
-				array(
-					'key'   => '_download_limit',
-					'type'  => 'integer',
-					'label' => 'Download limit',
-				),
-				array(
-					'key'   => '_download_expiry',
-					'type'  => 'integer',
-					'label' => 'Download expiry days',
-				),
-				array(
-					'key'   => '_product_version',
-					'type'  => 'text',
-					'label' => 'WC version product was created on',
-				),
-				array(
-					'key'        => '_wc_average_rating',
-					'type'       => 'decimal',
-					'searchable' => true,
-					'label'      => 'Average rating',
-				),
-				array(
-					'key'   => '_wc_review_count',
-					'type'  => 'integer',
-					'label' => 'Review count',
-				),
-				array(
-					'key'        => 'total_sales',
-					'type'       => 'integer',
-					'searchable' => true,
-					'label'      => 'Total sales count',
-				),
-			)
-		);
-	}
-
 	/**
 	 * Nav menu item meta keys (post_type=nav_menu_item).
 	 *

includes/migration/class-tmdo-post-migration.php

@@ -102,7 +102,7 @@ final class TMDO_Post_Migration {
 	 * into the group's flat table. Groups with json fields go row by row
 	 * through backfill_group_json() instead.
 	 *
-	 * @param string $group_name Entity group name (e.g. 'wc_product').
+	 * @param string $group_name Entity group name (e.g. 'hp_listing_core').
 	 * @return array{migrated:int,group:string,post_type:string|null}
 	 * @throws InvalidArgumentException When group is not registered, or is a restored orphan group.
 	 * @throws RuntimeException         When the pivot SQL fails.

tests/integration/PostEntityLifecycleTest.php

@@ -129,6 +129,7 @@ class PostEntityLifecycleTest extends TestCase {
 		WPDO_Entity_Registry::init();
 		WPDO_Entity_Registry::register_adapter( 'post', new WPDO_Adapter_Post() );
 		WPDO_Post_Fields::register_entity_fields();
+		tmdo_test_register_wc_product_group();
 	}
 
 	public static function tearDownAfterClass(): void {

tests/integration/PostMigrationTest.php

@@ -93,6 +93,7 @@ class PostMigrationTest extends TestCase {
 		WPDO_Entity_Registry::init();
 		WPDO_Entity_Registry::register_adapter( 'post', new WPDO_Adapter_Post() );
 		WPDO_Post_Fields::register_entity_fields();
+		tmdo_test_register_wc_product_group();
 	}
 
 	public static function tearDownAfterClass(): void {

tests/integration/PostQueryRouterDriftTest.php

@@ -15,6 +15,7 @@ class PostQueryRouterDriftTest extends TestCase {
 		WPDO_Entity_Registry::init();
 		WPDO_Entity_Registry::register_adapter( 'post', new WPDO_Adapter_Post() );
 		WPDO_Post_Fields::register_entity_fields();
+		tmdo_test_register_wc_product_group();
 	}
 
 	public static function tearDownAfterClass(): void {

tests/integration/PostQueryRouterOrderTest.php

@@ -20,6 +20,7 @@ class PostQueryRouterOrderTest extends TestCase {
 		WPDO_Entity_Registry::init();
 		WPDO_Entity_Registry::register_adapter( 'post', new WPDO_Adapter_Post() );
 		WPDO_Post_Fields::register_entity_fields();
+		tmdo_test_register_wc_product_group();
 	}
 
 	protected function setUp(): void {

tests/integration/PostQueryRouterTest.php

@@ -39,6 +39,7 @@ class PostQueryRouterTest extends TestCase {
 		WPDO_Entity_Registry::init();
 		WPDO_Entity_Registry::register_adapter( 'post', new WPDO_Adapter_Post() );
 		WPDO_Post_Fields::register_entity_fields();
+		tmdo_test_register_wc_product_group();
 	}
 
 	public static function tearDownAfterClass(): void {

tests/integration/bootstrap.php

@@ -649,3 +649,43 @@ if ( ! class_exists( 'TMDO_Listing_Stats' ) ) {
 	}
 	class_alias( 'TMDO_Listing_Stats', 'WPDO_Listing_Stats' );
 }
+
+/**
+ * The WooCommerce product group core registered before 1.2.0 (PR-077 moved
+ * product meta back to native only). Tests that use products as a routed
+ * post type register it themselves; the table name wp_itest_wpdo_post_wc_product
+ * is unchanged.
+ */
+function tmdo_test_register_wc_product_group(): void {
+	$enum = static fn( string $key, array $options ): array => array(
+		'key'     => $key,
+		'type'    => 'enum',
+		'options' => $options,
+	);
+	TMDO_Entity_Registry::register_group(
+		'post',
+		'wc_product',
+		array(
+			array( 'key' => '_price', 'type' => 'decimal', 'searchable' => true ),
+			array( 'key' => '_regular_price', 'type' => 'decimal', 'searchable' => true ),
+			array( 'key' => '_sale_price', 'type' => 'decimal', 'searchable' => true ),
+			array( 'key' => '_stock', 'type' => 'integer', 'searchable' => true ),
+			array( 'key' => '_stock_status', 'type' => 'enum', 'searchable' => true, 'options' => array( 'instock', 'outofstock', 'onbackorder' ) ),
+			array( 'key' => '_sku', 'type' => 'text', 'searchable' => true ),
+			$enum( '_manage_stock', array( 'yes', 'no' ) ),
+			$enum( '_backorders', array( 'yes', 'no', 'notify' ) ),
+			$enum( '_sold_individually', array( 'yes', 'no' ) ),
+			$enum( '_virtual', array( 'yes', 'no' ) ),
+			$enum( '_downloadable', array( 'yes', 'no' ) ),
+			array( 'key' => '_tax_class', 'type' => 'text' ),
+			$enum( '_tax_status', array( 'taxable', 'shipping', 'none' ) ),
+			array( 'key' => '_download_limit', 'type' => 'integer' ),
+			array( 'key' => '_download_expiry', 'type' => 'integer' ),
+			array( 'key' => '_product_version', 'type' => 'text' ),
+			array( 'key' => '_wc_average_rating', 'type' => 'decimal', 'searchable' => true ),
+			array( 'key' => '_wc_review_count', 'type' => 'integer' ),
+			array( 'key' => 'total_sales', 'type' => 'integer', 'searchable' => true ),
+		),
+		array( 'post_types' => array( 'product' ) )
+	);
+}

tests/live/suites/router.php

@@ -247,21 +247,22 @@ TMDO_Live::test(
 TMDO_Live::test(
 	'Q06 LIKE matches substrings and escapes wildcards, routed',
 	static function () {
-		TMDO_Live_Fixtures::field( 'post', '_sku', 'product' );
+		// A text key of wp_core (WooCommerce's _sku left the flat tables in 1.2.0).
+		TMDO_Live_Fixtures::field( 'post', '_wp_page_template' );
 		TMDO_Live_Fixtures::use_modes( array( 'post' => 'shadow_read' ) );
 		$p = tmdo_live_router_posts(
-			'product',
+			'post',
 			array(
-				'P1' => array( '_sku' => 'tmdo-live-B1-1' ),
+				'P1' => array( '_wp_page_template' => 'tmdo-live-B1-1' ),
-				'P2' => array( '_sku' => 'tmdo-live-B1-10' ),
+				'P2' => array( '_wp_page_template' => 'tmdo-live-B1-10' ),
-				'P3' => array( '_sku' => 'tmdo-live-B2-1' ),
+				'P3' => array( '_wp_page_template' => 'tmdo-live-B2-1' ),
 			)
 		);
 		foreach ( array( 'B1-1', 'B1_1' ) as $needle ) {
 			tmdo_live_router_assert_native(
 				array(
-					'post_type'  => 'product',
+					'post_type'  => 'post',
-					'meta_query' => array( array( 'key' => '_sku', 'value' => $needle, 'compare' => 'LIKE' ) ),
+					'meta_query' => array( array( 'key' => '_wp_page_template', 'value' => $needle, 'compare' => 'LIKE' ) ),
 				),
 				array_values( $p ),
 				true

tests/unit/PostFields/PostFieldsRegistrationTest.php

@@ -33,13 +33,12 @@ class PostFieldsRegistrationTest extends TestCase {
 		$this->assertTrue( true );
 	}
 
-	public function test_all_four_groups_are_registered(): void {
+	public function test_the_core_groups_are_registered(): void {
 		WPDO_Post_Fields::register_entity_fields();
 
 		$expected = array(
 			'wp_core',
 			'attachment',
-			'wc_product',
 			'nav_menu_item',
 		);
 
@@ -92,38 +91,14 @@ class PostFieldsRegistrationTest extends TestCase {
 		$this->assertSame( 'json', $field['type'] );
 	}
 
-	// ── wc_product group ─────────────────────────────────────────────────────
+	// ── WooCommerce products stay in native meta (2.2 PR-077) ───────────────
 
-	public function test_wc_product_group_has_19_keys(): void {
+	public function test_core_registers_no_woocommerce_product_group(): void {
 		WPDO_Post_Fields::register_entity_fields();
-		$keys = $this->get_field_keys( 'wc_product' );
-		$this->assertCount( 19, $keys, 'wc_product group should register exactly 19 keys.' );
-	}
 
-	public function test_wc_product_critical_keys_present(): void {
+		$this->assertSame( array(), WPDO_Entity_Registry::get_group_fields( 'post', 'wc_product' ), 'WooCommerce reads and writes product meta directly (stock by SQL)' );
-		WPDO_Post_Fields::register_entity_fields();
+		$this->assertNull( WPDO_Entity_Registry::get_field( 'post', '_price', 'product' ) );
-		$keys = $this->get_field_keys( 'wc_product' );
+		$this->assertSame( array(), WPDO_Post_Fields::groups_for_post_type( 'product' ) );
-		foreach ( array( '_price', '_regular_price', '_sale_price', '_stock', '_stock_status', '_sku' ) as $key ) {
-			$this->assertContains( $key, $keys, "wc_product missing critical key: {$key}" );
-		}
-	}
-
-	public function test_wc_product_price_is_searchable_decimal(): void {
-		WPDO_Post_Fields::register_entity_fields();
-		$field = $this->find_field( 'wc_product', '_price' );
-		$this->assertNotNull( $field );
-		$this->assertSame( 'decimal', $field['type'] );
-		$this->assertTrue( (bool) ( $field['searchable'] ?? false ) );
-	}
-
-	public function test_wc_product_stock_status_is_enum_searchable(): void {
-		WPDO_Post_Fields::register_entity_fields();
-		$field = $this->find_field( 'wc_product', '_stock_status' );
-		$this->assertNotNull( $field );
-		$this->assertSame( 'enum', $field['type'] );
-		$this->assertTrue( (bool) ( $field['searchable'] ?? false ) );
-		$this->assertContains( 'instock', $field['options'] );
-		$this->assertContains( 'outofstock', $field['options'] );
 	}
 
 	// ── HivePress groups moved to the HivePress AddOn ───────────────────────
@@ -139,7 +114,6 @@ class PostFieldsRegistrationTest extends TestCase {
 
 	public function test_core_groups_map_to_their_post_types(): void {
 		$this->assertSame( 'attachment', WPDO_Post_Fields::post_type_for_group( 'attachment' ) );
-		$this->assertSame( 'product', WPDO_Post_Fields::post_type_for_group( 'wc_product' ) );
 		$this->assertSame( 'nav_menu_item', WPDO_Post_Fields::post_type_for_group( 'nav_menu_item' ) );
 		$this->assertNull( WPDO_Post_Fields::post_type_for_group( 'wp_core' ), 'wp_core spans every post type' );
 	}
@@ -149,7 +123,6 @@ class PostFieldsRegistrationTest extends TestCase {
 
 		$this->assertSame( 'x_type', WPDO_Post_Fields::post_type_for_group( 'x_core' ) );
 		$this->assertSame( array( 'x_core' ), WPDO_Post_Fields::groups_for_post_type( 'x_type' ) );
-		$this->assertSame( array( 'wc_product' ), WPDO_Post_Fields::groups_for_post_type( 'product' ) );
 		$this->assertNull( WPDO_Post_Fields::post_type_for_group( 'hp_listing_core' ), 'unregistered HivePress group is unknown to core' );
 	}