WP_REST_Autosaves_Controller::prepare_item_for_response( WP_Post $item, WP_REST_Request $request ): WP_REST_Response

Source

public function prepare_item_for_response( $item, $request ) {
	// Restores the more descriptive, specific name for use within this method.
	$post = $item;

	$response = $this->revisions_controller->prepare_item_for_response( $post, $request );
	$fields   = $this->get_fields_for_response( $request );

	if ( in_array( 'preview_link', $fields, true ) ) {
		$parent_id          = wp_is_post_autosave( $post );
		$preview_post_id    = false === $parent_id ? $post->ID : $parent_id;
		$preview_query_args = array();

		if ( false !== $parent_id ) {
			$preview_query_args['preview_id']    = $parent_id;
			$preview_query_args['preview_nonce'] = wp_create_nonce( 'post_preview_' . $parent_id );
		}

		$response->data['preview_link'] = get_preview_post_link( $preview_post_id, $preview_query_args );
	}

	$context        = ! empty( $request['context'] ) ? $request['context'] : 'view';
	$response->data = $this->add_additional_fields_to_object( $response->data, $request );
	$response->data = $this->filter_response_by_context( $response->data, $context );

	/**
	 * Filters a revision returned from the REST API.
	 *
	 * Allows modification of the revision right before it is returned.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Response $response The response object.
	 * @param WP_Post          $post     The original revision object.
	 * @param WP_REST_Request  $request  Request used to generate the response.
	 */
	return apply_filters( 'rest_prepare_autosave', $response, $post, $request );
}

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