REST API: Use snake case convention for field names in Block Patterns

Backports the same changes applied in Gutenberg: WordPress/gutenberg#40254.

Follow-up for [53152].

Props jsnajdr, timothyblynjacobs.
See #55505.



git-svn-id: https://develop.svn.wordpress.org/trunk@53154 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/rest-api/endpoints/class-wp-rest-block-patterns-controller.php

@@ -107,19 +107,19 @@ public function get_items( $request ) {
 	public function prepare_item_for_response( $item, $request ) {
 		$fields = $this->get_fields_for_response( $request );
 		$keys   = array(
-			'name',
-			'title',
-			'description',
-			'viewportWidth',
-			'blockTypes',
-			'categories',
-			'keywords',
-			'content',
+			'name'          => 'name',
+			'title'         => 'title',
+			'description'   => 'description',
+			'viewportWidth' => 'viewport_width',
+			'blockTypes'    => 'block_types',
+			'categories'    => 'categories',
+			'keywords'      => 'keywords',
+			'content'       => 'content',
 		);
 		$data   = array();
-		foreach ( $keys as $key ) {
-			if ( isset( $item[ $key ] ) && rest_is_field_included( $key, $fields ) ) {
-				$data[ $key ] = $item[ $key ];
+		foreach ( $keys as $item_key => $rest_key ) {
+			if ( isset( $item[ $item_key ] ) && rest_is_field_included( $rest_key, $fields ) ) {
+				$data[ $rest_key ] = $item[ $item_key ];
 			}
 		}
 
@@ -142,49 +142,49 @@ public function get_item_schema() {
 			'title'      => 'block-pattern',
 			'type'       => 'object',
 			'properties' => array(
-				'name'          => array(
+				'name'           => array(
 					'description' => __( 'The pattern name.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'title'         => array(
+				'title'          => array(
 					'description' => __( 'The pattern title, in human readable format.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'description'   => array(
+				'description'    => array(
 					'description' => __( 'The pattern detailed description.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'viewportWidth' => array(
+				'viewport_Width' => array(
 					'description' => __( 'The pattern viewport width for inserter preview.' ),
 					'type'        => 'number',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'blockTypes'    => array(
+				'block_Types'    => array(
 					'description' => __( 'Block types that the pattern is intended to be used with.' ),
 					'type'        => 'array',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'categories'    => array(
+				'categories'     => array(
 					'description' => __( 'The pattern category slugs.' ),
 					'type'        => 'array',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'keywords'      => array(
+				'keywords'       => array(
 					'description' => __( 'The pattern keywords.' ),
 					'type'        => 'array',
 					'readonly'    => true,
 					'context'     => array( 'view', 'edit', 'embed' ),
 				),
-				'content'       => array(
+				'content'        => array(
 					'description' => __( 'The pattern content.' ),
 					'type'        => 'string',
 					'readonly'    => true,