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<?php

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/**

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* Server-side rendering of the `core/query-no-results` block.

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* @package WordPress

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/**

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* Renders the `core/query-no-results` block on the server.

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* @since 6.0.0

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* @global WP_Query $wp_query WordPress Query object.

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* @param array $attributes Block attributes.

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* @param string $content Block default content.

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* @param WP_Block $block Block instance.

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* @return string Returns the wrapper for the no results block.

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function render_block_core_query_no_results( $attributes, $content, $block ) {

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if ( empty( trim( $content ) ) ) {

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return '';

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}

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$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';

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$page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];

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// Override the custom query with the global query if needed.

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$use_global_query = ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] );

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if ( $use_global_query ) {

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global $wp_query;

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$query = $wp_query;

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} else {

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$query_args = build_query_vars_from_query_block( $block, $page );

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$query = new WP_Query( $query_args );

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}

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if ( $query->post_count > 0 ) {

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return '';

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}

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$classes = ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) ? 'has-link-color' : '';

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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );

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return sprintf(

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'<div %1$s>%2$s</div>',

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$wrapper_attributes,

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$content

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);

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}

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/**

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* Registers the `core/query-no-results` block on the server.

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* @since 6.0.0

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function register_block_core_query_no_results() {

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register_block_type_from_metadata(

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__DIR__ . '/query-no-results',

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array(

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'render_callback' => 'render_block_core_query_no_results',

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)

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);

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}

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add_action( 'init', 'register_block_core_query_no_results' );

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