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/wp-includes/blocks/ -> latest-posts.php (source)

   1  <?php
   2  /**
   3   * Server-side rendering of the `core/latest-posts` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * The excerpt length set by the Latest Posts core block
  10   * set at render time and used by the block itself.
  11   *
  12   * @var int
  13   */
  14  global $block_core_latest_posts_excerpt_length;
  15  $block_core_latest_posts_excerpt_length = 0;
  16  
  17  /**
  18   * Callback for the excerpt_length filter used by
  19   * the Latest Posts block at render time.
  20   *
  21   * @return int Returns the global $block_core_latest_posts_excerpt_length variable
  22   *             to allow the excerpt_length filter respect the Latest Block setting.
  23   */
  24  function block_core_latest_posts_get_excerpt_length() {
  25      global $block_core_latest_posts_excerpt_length;
  26      return $block_core_latest_posts_excerpt_length;
  27  }
  28  
  29  /**
  30   * Renders the `core/latest-posts` block on server.
  31   *
  32   * @param array $attributes The block attributes.
  33   *
  34   * @return string Returns the post content with latest posts added.
  35   */
  36  function render_block_core_latest_posts( $attributes ) {
  37      global $post, $block_core_latest_posts_excerpt_length;
  38  
  39      $args = array(
  40          'posts_per_page'   => $attributes['postsToShow'],
  41          'post_status'      => 'publish',
  42          'order'            => $attributes['order'],
  43          'orderby'          => $attributes['orderBy'],
  44          'suppress_filters' => false,
  45      );
  46  
  47      $block_core_latest_posts_excerpt_length = $attributes['excerptLength'];
  48      add_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );
  49  
  50      if ( isset( $attributes['categories'] ) ) {
  51          $args['category__in'] = array_column( $attributes['categories'], 'id' );
  52      }
  53      if ( isset( $attributes['selectedAuthor'] ) ) {
  54          $args['author'] = $attributes['selectedAuthor'];
  55      }
  56  
  57      $recent_posts = get_posts( $args );
  58  
  59      $list_items_markup = '';
  60  
  61      foreach ( $recent_posts as $post ) {
  62          $post_link = esc_url( get_permalink( $post ) );
  63  
  64          $list_items_markup .= '<li>';
  65  
  66          if ( $attributes['displayFeaturedImage'] && has_post_thumbnail( $post ) ) {
  67              $image_style = '';
  68              if ( isset( $attributes['featuredImageSizeWidth'] ) ) {
  69                  $image_style .= sprintf( 'max-width:%spx;', $attributes['featuredImageSizeWidth'] );
  70              }
  71              if ( isset( $attributes['featuredImageSizeHeight'] ) ) {
  72                  $image_style .= sprintf( 'max-height:%spx;', $attributes['featuredImageSizeHeight'] );
  73              }
  74  
  75              $image_classes = 'wp-block-latest-posts__featured-image';
  76              if ( isset( $attributes['featuredImageAlign'] ) ) {
  77                  $image_classes .= ' align' . $attributes['featuredImageAlign'];
  78              }
  79  
  80              $featured_image = get_the_post_thumbnail(
  81                  $post,
  82                  $attributes['featuredImageSizeSlug'],
  83                  array(
  84                      'style' => $image_style,
  85                  )
  86              );
  87              if ( $attributes['addLinkToFeaturedImage'] ) {
  88                  $featured_image = sprintf(
  89                      '<a href="%1$s">%2$s</a>',
  90                      $post_link,
  91                      $featured_image
  92                  );
  93              }
  94              $list_items_markup .= sprintf(
  95                  '<div class="%1$s">%2$s</div>',
  96                  $image_classes,
  97                  $featured_image
  98              );
  99          }
 100  
 101          $title = get_the_title( $post );
 102          if ( ! $title ) {
 103              $title = __( '(no title)' );
 104          }
 105          $list_items_markup .= sprintf(
 106              '<a href="%1$s">%2$s</a>',
 107              $post_link,
 108              $title
 109          );
 110  
 111          if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
 112              $author_display_name = get_the_author_meta( 'display_name', $post->post_author );
 113  
 114              /* translators: byline. %s: current author. */
 115              $byline = sprintf( __( 'by %s' ), $author_display_name );
 116  
 117              if ( ! empty( $author_display_name ) ) {
 118                  $list_items_markup .= sprintf(
 119                      '<div class="wp-block-latest-posts__post-author">%1$s</div>',
 120                      esc_html( $byline )
 121                  );
 122              }
 123          }
 124  
 125          if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
 126              $list_items_markup .= sprintf(
 127                  '<time datetime="%1$s" class="wp-block-latest-posts__post-date">%2$s</time>',
 128                  esc_attr( get_the_date( 'c', $post ) ),
 129                  esc_html( get_the_date( '', $post ) )
 130              );
 131          }
 132  
 133          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
 134              && isset( $attributes['displayPostContentRadio'] ) && 'excerpt' === $attributes['displayPostContentRadio'] ) {
 135  
 136              $trimmed_excerpt = get_the_excerpt( $post );
 137  
 138              if ( post_password_required( $post ) ) {
 139                  $trimmed_excerpt = __( 'This content is password protected.' );
 140              }
 141  
 142              $list_items_markup .= sprintf(
 143                  '<div class="wp-block-latest-posts__post-excerpt">%1$s</div>',
 144                  $trimmed_excerpt
 145              );
 146          }
 147  
 148          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
 149              && isset( $attributes['displayPostContentRadio'] ) && 'full_post' === $attributes['displayPostContentRadio'] ) {
 150  
 151              $post_content = wp_kses_post( html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) ) );
 152  
 153              if ( post_password_required( $post ) ) {
 154                  $post_content = __( 'This content is password protected.' );
 155              }
 156  
 157              $list_items_markup .= sprintf(
 158                  '<div class="wp-block-latest-posts__post-full-content">%1$s</div>',
 159                  $post_content
 160              );
 161          }
 162  
 163          $list_items_markup .= "</li>\n";
 164      }
 165  
 166      remove_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );
 167  
 168      $class = 'wp-block-latest-posts__list';
 169  
 170      if ( isset( $attributes['postLayout'] ) && 'grid' === $attributes['postLayout'] ) {
 171          $class .= ' is-grid';
 172      }
 173  
 174      if ( isset( $attributes['columns'] ) && 'grid' === $attributes['postLayout'] ) {
 175          $class .= ' columns-' . $attributes['columns'];
 176      }
 177  
 178      if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
 179          $class .= ' has-dates';
 180      }
 181  
 182      if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
 183          $class .= ' has-author';
 184      }
 185  
 186      $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
 187  
 188      return sprintf(
 189          '<ul %1$s>%2$s</ul>',
 190          $wrapper_attributes,
 191          $list_items_markup
 192      );
 193  }
 194  
 195  /**
 196   * Registers the `core/latest-posts` block on server.
 197   */
 198  function register_block_core_latest_posts() {
 199      register_block_type_from_metadata(
 200          __DIR__ . '/latest-posts',
 201          array(
 202              'render_callback' => 'render_block_core_latest_posts',
 203          )
 204      );
 205  }
 206  add_action( 'init', 'register_block_core_latest_posts' );
 207  
 208  /**
 209   * Handles outdated versions of the `core/latest-posts` block by converting
 210   * attribute `categories` from a numeric string to an array with key `id`.
 211   *
 212   * This is done to accommodate the changes introduced in #20781 that sought to
 213   * add support for multiple categories to the block. However, given that this
 214   * block is dynamic, the usual provisions for block migration are insufficient,
 215   * as they only act when a block is loaded in the editor.
 216   *
 217   * TODO: Remove when and if the bottom client-side deprecation for this block
 218   * is removed.
 219   *
 220   * @param array $block A single parsed block object.
 221   *
 222   * @return array The migrated block object.
 223   */
 224  function block_core_latest_posts_migrate_categories( $block ) {
 225      if (
 226          'core/latest-posts' === $block['blockName'] &&
 227          ! empty( $block['attrs']['categories'] ) &&
 228          is_string( $block['attrs']['categories'] )
 229      ) {
 230          $block['attrs']['categories'] = array(
 231              array( 'id' => absint( $block['attrs']['categories'] ) ),
 232          );
 233      }
 234  
 235      return $block;
 236  }
 237  add_filter( 'render_block_data', 'block_core_latest_posts_migrate_categories' );


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