Editor: Adds pagination and ordering support to WP_REST_Pattern_Directory_Controller.

Adds pagination and ordering support to `WP_REST_Pattern_Directory_Controller` by allow listing `'per_page'`, `'page'`, `'offset'`, `'order'`, and `'orderby'` query parameters. This change enables pagination and ordering features in the pattern directory explorer by using the same sort as wordpress.org/patterns.

Reference:
* [https://github.com/WordPress/gutenberg/pull/45293 Gutenberg PR 45293]

Follow-up to [55098], [51206], [51021].

Props ntsekouras, ryelle, arrasel403, hellofromTonya, ironprogrammer, mukesh27, robinwpdeveloper.
Fixes #57501.
Built from https://develop.svn.wordpress.org/trunk@55132


git-svn-id: http://core.svn.wordpress.org/trunk@54665 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php

@@ -81,6 +81,7 @@ class WP_REST_Pattern_Directory_Controller extends WP_REST_Controller {
 	 *
 	 * @since 5.8.0
 	 * @since 6.0.0 Added 'slug' to request.
+	 * @since 6.2.0 Added 'per_page', 'page', 'offset', 'order', and 'orderby' to request.
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
@@ -93,31 +94,23 @@ class WP_REST_Pattern_Directory_Controller extends WP_REST_Controller {
 		 */
 		require ABSPATH . WPINC . '/version.php';
 
-		$query_args = array(
+		$valid_query_args = array(
-			'locale'     => get_user_locale(),
+			'offset'   => true,
-			'wp-version' => $wp_version,
+			'order'    => true,
+			'orderby'  => true,
+			'page'     => true,
+			'per_page' => true,
+			'search'   => true,
+			'slug'     => true,
 		);
+		$query_args = array_intersect_key( $request->get_params(), $valid_query_args );
 
-		$category_id = $request['category'];
+		$query_args['locale']             = get_user_locale();
-		$keyword_id  = $request['keyword'];
+		$query_args['wp-version']         = $wp_version; // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UndefinedVariable -- it's defined in `version.php` above.
-		$search_term = $request['search'];
+		$query_args['pattern-categories'] = isset( $request['category'] ) ? $request['category'] : false;
-		$slug        = $request['slug'];
+		$query_args['pattern-keywords']   = isset( $request['keyword'] ) ? $request['keyword'] : false;
 
-		if ( $category_id ) {
+		$query_args = array_filter( $query_args );
-			$query_args['pattern-categories'] = $category_id;
-		}
-
-		if ( $keyword_id ) {
-			$query_args['pattern-keywords'] = $keyword_id;
-		}
-
-		if ( $search_term ) {
-			$query_args['search'] = $search_term;
-		}
-
-		if ( $slug ) {
-			$query_args['slug'] = $slug;
-		}
 
 		$transient_key = $this->get_transient_key( $query_args );
 
@@ -303,16 +296,14 @@ class WP_REST_Pattern_Directory_Controller extends WP_REST_Controller {
 	 * Retrieves the search parameters for the block pattern's collection.
 	 *
 	 * @since 5.8.0
+	 * @since 6.2.0 Added 'per_page', 'page', 'offset', 'order', and 'orderby' to request.
 	 *
 	 * @return array Collection parameters.
 	 */
 	public function get_collection_params() {
 		$query_params = parent::get_collection_params();
 
-		// Pagination is not supported.
+		$query_params['per_page']['default'] = 100;
-		unset( $query_params['page'] );
-		unset( $query_params['per_page'] );
-
 		$query_params['search']['minLength'] = 1;
 		$query_params['context']['default']  = 'view';
 
@@ -333,6 +324,37 @@ class WP_REST_Pattern_Directory_Controller extends WP_REST_Controller {
 			'type'        => 'array',
 		);
 
+		$query_params['offset'] = array(
+			'description' => __( 'Offset the result set by a specific number of items.' ),
+			'type'        => 'integer',
+		);
+
+		$query_params['order'] = array(
+			'description' => __( 'Order sort attribute ascending or descending.' ),
+			'type'        => 'string',
+			'default'     => 'desc',
+			'enum'        => array( 'asc', 'desc' ),
+		);
+
+		$query_params['orderby'] = array(
+			'description' => __( 'Sort collection by post attribute.' ),
+			'type'        => 'string',
+			'default'     => 'date',
+			'enum'        => array(
+				'author',
+				'date',
+				'id',
+				'include',
+				'modified',
+				'parent',
+				'relevance',
+				'slug',
+				'include_slugs',
+				'title',
+				'favorite_count',
+			),
+		);
+
 		/**
 		 * Filter collection parameters for the block pattern directory controller.
 		 *

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-55131';
+$wp_version = '6.2-alpha-55132';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.