Revert template activation.

This commit reverts the PHP changes that were made to support the template activation feature. The UI was already reverted through the packages sync in [61177] (Gutenberg PR: WordPress/gutenberg#73025).

Developed in #10473.

Fixes #64214.
Props ellatrix, t-hamano, mcsf, ramonjd.

git-svn-id: https://develop.svn.wordpress.org/trunk@61178 602fd350-edb4-49c9-b593-d223f7449a82

Author: ellatrix

src/wp-admin/site-editor.php

@@ -244,9 +244,7 @@ static function ( $classes ) {
 			);
 		}
 	}
-} elseif ( isset( $_GET['p'] ) && '/' !== $_GET['p'] ) {
-	// Only prefetch for the root. If we preload it for all pages and it's not
-	// used it won't be possible to invalidate.
+} else {
 	$preload_paths[] = '/wp/v2/templates/lookup?slug=front-page';
 	$preload_paths[] = '/wp/v2/templates/lookup?slug=home';
 }

src/wp-includes/block-template-utils.php

@@ -1074,46 +1074,6 @@ function _build_block_template_result_from_post( $post ) {
 	return $template;
 }
 
-function get_registered_block_templates( $query ) {
-	$template_files = _get_block_templates_files( 'wp_template', $query );
-	$query_result   = array();
-
-	// _get_block_templates_files seems broken, it does not obey the query.
-	if ( isset( $query['slug__in'] ) && is_array( $query['slug__in'] ) ) {
-		$template_files = array_filter(
-			$template_files,
-			function ( $template_file ) use ( $query ) {
-				return in_array( $template_file['slug'], $query['slug__in'], true );
-			}
-		);
-	}
-
-	foreach ( $template_files as $template_file ) {
-		$query_result[] = _build_block_template_result_from_file( $template_file, 'wp_template' );
-	}
-
-	// Add templates registered through the template registry. Filtering out the
-	// ones which have a theme file.
-	$registered_templates          = WP_Block_Templates_Registry::get_instance()->get_by_query( $query );
-	$matching_registered_templates = array_filter(
-		$registered_templates,
-		function ( $registered_template ) use ( $template_files ) {
-			foreach ( $template_files as $template_file ) {
-				if ( $template_file['slug'] === $registered_template->slug ) {
-					return false;
-				}
-			}
-			return true;
-		}
-	);
-
-	$query_result = array_merge( $query_result, $matching_registered_templates );
-
-	// Templates added by PHP filter also count as registered templates.
-	/** This filter is documented in wp-includes/block-template-utils.php */
-	return apply_filters( 'get_block_templates', $query_result, $query, 'wp_template' );
-}
-
 /**
  * Retrieves a list of unified template objects based on a query.
  *
@@ -1192,8 +1152,6 @@ function get_block_templates( $query = array(), $template_type = 'wp_template' )
 		$wp_query_args['post_status'] = 'publish';
 	}
 
-	$active_templates = get_option( 'active_templates', array() );
-
 	$template_query = new WP_Query( $wp_query_args );
 	$query_result   = array();
 	foreach ( $template_query->posts as $post ) {
@@ -1215,14 +1173,7 @@ function get_block_templates( $query = array(), $template_type = 'wp_template' )
 			continue;
 		}
 
-		if ( $template->is_custom || isset( $query['wp_id'] ) ) {
-			// Custom templates don't need to be activated, leave them be.
-			// Also don't filter out templates when querying by wp_id.
-			$query_result[] = $template;
-		} elseif ( isset( $active_templates[ $template->slug ] ) && $active_templates[ $template->slug ] === $post->ID ) {
-			// Only include active templates.
-			$query_result[] = $template;
-		}
+		$query_result[] = $template;
 	}
 
 	if ( ! isset( $query['wp_id'] ) ) {
@@ -1345,23 +1296,7 @@ function get_block_template( $id, $template_type = 'wp_template' ) {
 		return null;
 	}
 	list( $theme, $slug ) = $parts;
-
-	$active_templates = get_option( 'active_templates', array() );
-
-	if ( ! empty( $active_templates[ $slug ] ) ) {
-		if ( is_int( $active_templates[ $slug ] ) ) {
-			$post = get_post( $active_templates[ $slug ] );
-			if ( $post && 'publish' === $post->post_status ) {
-				$template = _build_block_template_result_from_post( $post );
-
-				if ( ! is_wp_error( $template ) && $theme === $template->theme ) {
-					return $template;
-				}
-			}
-		}
-	}
-
-	$wp_query_args  = array(
+	$wp_query_args        = array(
 		'post_name__in'  => array( $slug ),
 		'post_type'      => $template_type,
 		'post_status'    => array( 'auto-draft', 'draft', 'publish', 'trash' ),
@@ -1375,18 +1310,12 @@ function get_block_template( $id, $template_type = 'wp_template' ) {
 			),
 		),
 	);
-	$template_query = new WP_Query( $wp_query_args );
-	$posts          = $template_query->posts;
+	$template_query       = new WP_Query( $wp_query_args );
+	$posts                = $template_query->posts;
 
 	if ( count( $posts ) > 0 ) {
 		$template = _build_block_template_result_from_post( $posts[0] );
 
-		// Custom templates don't need to be activated, so if it's a custom
-		// template, return it.
-		if ( ! is_wp_error( $template ) && $template->is_custom ) {
-			return $template;
-		}
-
 		if ( ! is_wp_error( $template ) ) {
 			return $template;
 		}
@@ -1850,87 +1779,3 @@ function inject_ignored_hooked_blocks_metadata_attributes( $changes, $deprecated
 
 	return $changes;
 }
-
-function wp_assign_new_template_to_theme( $changes, $request ) {
-	// Do not run this for templates created through the old enpoint.
-	$template = $request['id'] ? get_block_template( $request['id'], 'wp_template' ) : null;
-	if ( $template ) {
-		return $changes;
-	}
-	if ( ! isset( $changes->tax_input ) ) {
-		$changes->tax_input = array();
-	}
-	$changes->tax_input['wp_theme'] = isset( $request['theme'] ) ? $request['theme'] : get_stylesheet();
-	// All new templates saved will receive meta so we can distinguish between
-	// templates created the old way as edits and templates created the new way.
-	if ( ! isset( $changes->meta_input ) ) {
-		$changes->meta_input = array();
-	}
-	$changes->meta_input['is_inactive_by_default'] = true;
-	return $changes;
-}
-
-function wp_maybe_activate_template( $post_id ) {
-	$post                   = get_post( $post_id );
-	$is_inactive_by_default = get_post_meta( $post_id, 'is_inactive_by_default', true );
-	if ( $is_inactive_by_default ) {
-		return;
-	}
-	$active_templates                     = get_option( 'active_templates', array() );
-	$active_templates[ $post->post_name ] = $post->ID;
-	update_option( 'active_templates', $active_templates );
-}
-
-function _wp_migrate_active_templates() {
-	// Do not run during installation when the database is not yet available.
-	if ( wp_installing() ) {
-		return;
-	}
-
-	$active_templates = get_option( 'active_templates', false );
-
-	if ( false !== $active_templates ) {
-		return;
-	}
-
-	// Query all templates in the database. See `get_block_templates`.
-	$wp_query_args = array(
-		'post_status'         => 'publish',
-		'post_type'           => 'wp_template',
-		'posts_per_page'      => -1,
-		'no_found_rows'       => true,
-		'lazy_load_term_meta' => false,
-		'tax_query'           => array(
-			array(
-				'taxonomy' => 'wp_theme',
-				'field'    => 'name',
-				'terms'    => get_stylesheet(),
-			),
-		),
-		// Only get templates that are not inactive by default. We check these
-		// meta to make sure we don't fill the option with inactive templates
-		// created after the 6.9 release when for some reason the option is
-		// deleted.
-		'meta_query'          => array(
-			'relation' => 'OR',
-			array(
-				'key'     => 'is_inactive_by_default',
-				'compare' => 'NOT EXISTS',
-			),
-			array(
-				'key'     => 'is_inactive_by_default',
-				'value'   => false,
-				'compare' => '=',
-			),
-		),
-	);
-
-	$template_query   = new WP_Query( $wp_query_args );
-	$active_templates = array();
-
-	foreach ( $template_query->posts as $post ) {
-		$active_templates[ $post->post_name ] = $post->ID;
-	}
-
-	update_option( 'active_templates', $active_templates );
-}

src/wp-includes/block-template.php

@@ -164,67 +164,11 @@ function resolve_block_template( $template_type, $template_hierarchy, $fallback_
 		$template_hierarchy
 	);
 
-	$object_id         = get_queried_object_id();
-	$specific_template = $object_id && get_post( $object_id ) ? get_page_template_slug( $object_id ) : null;
-	$active_templates  = (array) get_option( 'active_templates', array() );
-
-	// We expect one template for each slug. Use the active template if it is
-	// set and exists. Otherwise use the static template.
-	$templates       = array();
-	$remaining_slugs = array();
-
-	foreach ( $slugs as $slug ) {
-		if ( $slug === $specific_template || empty( $active_templates[ $slug ] ) ) {
-			$remaining_slugs[] = $slug;
-			continue;
-		}
-
-		// TODO: it need to be possible to set a static template as active.
-		$post = get_post( $active_templates[ $slug ] );
-		if ( ! $post || 'publish' !== $post->post_status ) {
-			$remaining_slugs[] = $slug;
-			continue;
-		}
-
-		$template = _build_block_template_result_from_post( $post );
-
-		// Ensure the active templates are associated with the active theme.
-		// See _build_block_template_object_from_post_object.
-		if ( get_stylesheet() !== $template->theme ) {
-			$remaining_slugs[] = $slug;
-			continue;
-		}
-
-		$templates[] = $template;
-	}
-
-	// Apply the filter to the active templates for backward compatibility.
-	/** This filter is documented in wp-includes/block-template-utils.php */
-	if ( ! empty( $templates ) ) {
-		$templates = apply_filters(
-			'get_block_templates',
-			$templates,
-			array(
-				'slug__in' => array_map(
-					function ( $template ) {
-						return $template->slug;
-					},
-					$templates
-				),
-			),
-			'wp_template'
-		);
-	}
-
-	// For any remaining slugs, use the static template.
+	// Find all potential templates 'wp_template' post matching the hierarchy.
 	$query     = array(
-		'slug__in' => $remaining_slugs,
+		'slug__in' => $slugs,
 	);
-	$templates = array_merge( $templates, get_registered_block_templates( $query ) );
-
-	if ( $specific_template && in_array( $specific_template, $remaining_slugs, true ) ) {
-		$templates = array_merge( $templates, get_block_templates( array( 'slug__in' => array( $specific_template ) ) ) );
-	}
+	$templates = get_block_templates( $query );
 
 	// Order these templates per slug priority.
 	// Build map of template slugs to their priority in the current hierarchy.

src/wp-includes/default-filters.php

@@ -571,7 +571,6 @@
 
 // Post.
 add_action( 'init', 'create_initial_post_types', 0 ); // Highest priority.
-add_action( 'init', '_wp_migrate_active_templates', 0 ); // Highest priority.
 add_action( 'admin_menu', '_add_post_type_submenus' );
 add_action( 'before_delete_post', '_reset_front_page_settings_for_post' );
 add_action( 'wp_trash_post', '_reset_front_page_settings_for_post' );
@@ -747,7 +746,6 @@
 // Block templates post type and rendering.
 add_filter( 'render_block_context', '_block_template_render_without_post_block_context' );
 add_filter( 'pre_wp_unique_post_slug', 'wp_filter_wp_template_unique_post_slug', 10, 5 );
-add_action( 'save_post_wp_template', 'wp_maybe_activate_template' );
 add_action( 'save_post_wp_template_part', 'wp_set_unique_slug_on_create_template_part' );
 add_action( 'wp_enqueue_scripts', 'wp_enqueue_block_template_skip_link' );
 add_action( 'wp_footer', 'the_block_template_skip_link' ); // Retained for backwards-compatibility. Unhooked by wp_enqueue_block_template_skip_link().
@@ -788,10 +786,6 @@
 add_filter( 'rest_pre_insert_wp_template', 'inject_ignored_hooked_blocks_metadata_attributes' );
 add_filter( 'rest_pre_insert_wp_template_part', 'inject_ignored_hooked_blocks_metadata_attributes' );
 
-// Assign the wp_theme term to any newly created wp_template with the new endpoint.
-// Must run before `inject_ignored_hooked_blocks_metadata_attributes`.
-add_action( 'rest_pre_insert_wp_template', 'wp_assign_new_template_to_theme', 9, 2 );
-
 // Update ignoredHookedBlocks postmeta for some post types.
 add_filter( 'rest_pre_insert_page', 'update_ignored_hooked_blocks_postmeta' );
 add_filter( 'rest_pre_insert_post', 'update_ignored_hooked_blocks_postmeta' );

src/wp-includes/option.php

@@ -2959,25 +2959,6 @@ function register_initial_settings() {
 			'description'  => __( 'Allow people to submit comments on new posts.' ),
 		)
 	);
-
-	register_setting(
-		'reading',
-		'active_templates',
-		array(
-			'type'         => 'object',
-			// Do not set the default value to an empty array! For some reason
-			// that will prevent the option from being set to an empty array.
-			'show_in_rest' => array(
-				'schema' => array(
-					'type'                 => 'object',
-					// Properties can be integers, strings, or false
-					// (deactivated).
-					'additionalProperties' => true,
-				),
-			),
-			'label'        => 'Active Templates',
-		)
-	);
 }
 
 /**