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- <?php
- /**
- * Server-side rendering of the `core/query-no-results` block.
- *
- * @package WordPress
- */
- /**
- * Renders the `core/query-no-results` block on the server.
- *
- * @param array $attributes Block attributes.
- * @param string $content Block default content.
- * @param WP_Block $block Block instance.
- *
- * @return string Returns the wrapper for the no results block.
- */
- function render_block_core_query_no_results( $attributes, $content, $block ) {
- if ( empty( trim( $content ) ) ) {
- return '';
- }
- $page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
- $page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
- // Override the custom query with the global query if needed.
- $use_global_query = ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] );
- if ( $use_global_query ) {
- global $wp_query;
- $query = $wp_query;
- } else {
- $query_args = build_query_vars_from_query_block( $block, $page );
- $query = new WP_Query( $query_args );
- }
- if ( $query->have_posts() ) {
- return '';
- }
- if ( ! $use_global_query ) {
- wp_reset_postdata();
- }
- return sprintf(
- '<div %1$s>%2$s</div>',
- get_block_wrapper_attributes(),
- $content
- );
- }
- /**
- * Registers the `core/query-no-results` block on the server.
- */
- function register_block_core_query_no_results() {
- register_block_type_from_metadata(
- __DIR__ . '/query-no-results',
- array(
- 'render_callback' => 'render_block_core_query_no_results',
- )
- );
- }
- add_action( 'init', 'register_block_core_query_no_results' );
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