render_block_core_post_template() – Renders the `core/post-template` block on the server.

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Description

Renders the core/post-template block on the server.

Usage

$string = render_block_core_post_template( $attributes, $content, $block );

Parameters

$attributes
( array ) required – Block attributes.
$content
( string ) required – Block default content.
$block
( WP_Block ) required – Block instance.

Returns

string Returns the output of the query, structured using the layout defined by the block's inner blocks.

Source

File name: wordpress/wp-includes/blocks/post-template.php


Lines:

1 to 78 of 78
function render_block_core_post_template( $attributes, $content, $block ) {
  $page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
  $page     = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];

  $query_args = build_query_vars_from_query_block( $block, $page );
  // 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;
    if ( $wp_query && isset( $wp_query->query_vars ) && is_array( $wp_query->query_vars ) ) {
      // Unset `offset` because if is set, $wp_query overrides/ignores the paged parameter and breaks pagination.
      unset( $query_args['offset'] );
      $query_args = wp_parse_args( $wp_query->query_vars, $query_args );

      if ( empty( $query_args['post_type'] ) && is_singular() ) {
        $query_args['post_type'] = get_post_type( get_the_ID() );
      }
    }
  }

  $query = new WP_Query( $query_args );

  if ( ! $query->have_posts() ) {
    return '';
  }

  if ( block_core_post_template_uses_featured_image( $block->inner_blocks ) ) {
    update_post_thumbnail_cache( $query );
  }

  $classnames = '';
  if ( isset( $block->context['displayLayout'] ) && isset( $block->context['query'] ) ) {
    if ( isset( $block->context['displayLayout']['type'] ) && 'flex' === $block->context['displayLayout']['type'] ) {
      $classnames = "is-flex-container columns-{$block->context['displayLayout']['columns']}";
    }
  }

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

  $content = '';
  while ( $query->have_posts() ) {
    $query->the_post();

    // Get an instance of the current Post Template block.
    $block_instance = $block->parsed_block;

    // Set the block name to one that does not correspond to an existing registered block.
    // This ensures that for the inner instances of the Post Template block, we do not render any block supports.
    $block_instance['blockName'] = 'core/null';

    // Render the inner blocks of the Post Template block with `dynamic` set to `false` to prevent calling
    // `render_callback` and ensure that no wrapper markup is included.
    $block_content = (
      new WP_Block(
        $block_instance,
        array(
          'postType' => get_post_type(),
          'postId'   => get_the_ID(),
        )
      )
    )->render( array( 'dynamic' => false ) );

    // Wrap the render inner blocks in a `li` element with the appropriate post classes.
    $post_classes = implode( ' ', get_post_class( 'wp-block-post' ) );
    $content     .= '<li class="' . esc_attr( $post_classes ) . '">' . $block_content . '</li>';
  }

  wp_reset_postdata();

  return sprintf(
    '<ul %1$s>%2$s</ul>',
    $wrapper_attributes,
    $content
  );
}
 

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