[Summary view] [Print] [Text view]

   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          $title     = get_the_title( $post );
  64  
  65          if ( ! $title ) {
  66              $title = __( '(no title)' );
  67          }
  68  
  69          $list_items_markup .= '<li>';
  70  
  71          if ( $attributes['displayFeaturedImage'] && has_post_thumbnail( $post ) ) {
  72              $image_style = '';
  73              if ( isset( $attributes['featuredImageSizeWidth'] ) ) {
  74                  $image_style .= sprintf( 'max-width:%spx;', $attributes['featuredImageSizeWidth'] );
  75              }
  76              if ( isset( $attributes['featuredImageSizeHeight'] ) ) {
  77                  $image_style .= sprintf( 'max-height:%spx;', $attributes['featuredImageSizeHeight'] );
  78              }
  79  
  80              $image_classes = 'wp-block-latest-posts__featured-image';
  81              if ( isset( $attributes['featuredImageAlign'] ) ) {
  82                  $image_classes .= ' align' . $attributes['featuredImageAlign'];
  83              }
  84  
  85              $featured_image = get_the_post_thumbnail(
  86                  $post,
  87                  $attributes['featuredImageSizeSlug'],
  88                  array(
  89                      'style' => esc_attr( $image_style ),
  90                  )
  91              );
  92              if ( $attributes['addLinkToFeaturedImage'] ) {
  93                  $featured_image = sprintf(
  94                      '<a href="%1$s" aria-label="%2$s">%3$s</a>',
  95                      esc_url( $post_link ),
  96                      esc_attr( $title ),
  97                      $featured_image
  98                  );
  99              }
 100              $list_items_markup .= sprintf(
 101                  '<div class="%1$s">%2$s</div>',
 102                  esc_attr( $image_classes ),
 103                  $featured_image
 104              );
 105          }
 106  
 107          $list_items_markup .= sprintf(
 108              '<a class="wp-block-latest-posts__post-title" href="%1$s">%2$s</a>',
 109              esc_url( $post_link ),
 110              $title
 111          );
 112  
 113          if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
 114              $author_display_name = get_the_author_meta( 'display_name', $post->post_author );
 115  
 116              /* translators: byline. %s: current author. */
 117              $byline = sprintf( __( 'by %s' ), $author_display_name );
 118  
 119              if ( ! empty( $author_display_name ) ) {
 120                  $list_items_markup .= sprintf(
 121                      '<div class="wp-block-latest-posts__post-author">%1$s</div>',
 122                      $byline
 123                  );
 124              }
 125          }
 126  
 127          if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
 128              $list_items_markup .= sprintf(
 129                  '<time datetime="%1$s" class="wp-block-latest-posts__post-date">%2$s</time>',
 130                  esc_attr( get_the_date( 'c', $post ) ),
 131                  get_the_date( '', $post )
 132              );
 133          }
 134  
 135          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
 136              && isset( $attributes['displayPostContentRadio'] ) && 'excerpt' === $attributes['displayPostContentRadio'] ) {
 137  
 138              $trimmed_excerpt = get_the_excerpt( $post );
 139  
 140              if ( post_password_required( $post ) ) {
 141                  $trimmed_excerpt = __( 'This content is password protected.' );
 142              }
 143  
 144              $list_items_markup .= sprintf(
 145                  '<div class="wp-block-latest-posts__post-excerpt">%1$s</div>',
 146                  $trimmed_excerpt
 147              );
 148          }
 149  
 150          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
 151              && isset( $attributes['displayPostContentRadio'] ) && 'full_post' === $attributes['displayPostContentRadio'] ) {
 152  
 153              $post_content = html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) );
 154  
 155              if ( post_password_required( $post ) ) {
 156                  $post_content = __( 'This content is password protected.' );
 157              }
 158  
 159              $list_items_markup .= sprintf(
 160                  '<div class="wp-block-latest-posts__post-full-content">%1$s</div>',
 161                  wp_kses_post( $post_content )
 162              );
 163          }
 164  
 165          $list_items_markup .= "</li>\n";
 166      }
 167  
 168      remove_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );
 169  
 170      $class = 'wp-block-latest-posts__list';
 171  
 172      if ( isset( $attributes['postLayout'] ) && 'grid' === $attributes['postLayout'] ) {
 173          $class .= ' is-grid';
 174      }
 175  
 176      if ( isset( $attributes['columns'] ) && 'grid' === $attributes['postLayout'] ) {
 177          $class .= ' columns-' . $attributes['columns'];
 178      }
 179  
 180      if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
 181          $class .= ' has-dates';
 182      }
 183  
 184      if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
 185          $class .= ' has-author';
 186      }
 187  
 188      $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
 189  
 190      return sprintf(
 191          '<ul %1$s>%2$s</ul>',
 192          $wrapper_attributes,
 193          $list_items_markup
 194      );
 195  }
 196  
 197  /**
 198   * Registers the `core/latest-posts` block on server.
 199   */
 200  function register_block_core_latest_posts() {
 201      register_block_type_from_metadata(
 202          __DIR__ . '/latest-posts',
 203          array(
 204              'render_callback' => 'render_block_core_latest_posts',
 205          )
 206      );
 207  }
 208  add_action( 'init', 'register_block_core_latest_posts' );
 209  
 210  /**
 211   * Handles outdated versions of the `core/latest-posts` block by converting
 212   * attribute `categories` from a numeric string to an array with key `id`.
 213   *
 214   * This is done to accommodate the changes introduced in #20781 that sought to
 215   * add support for multiple categories to the block. However, given that this
 216   * block is dynamic, the usual provisions for block migration are insufficient,
 217   * as they only act when a block is loaded in the editor.
 218   *
 219   * TODO: Remove when and if the bottom client-side deprecation for this block
 220   * is removed.
 221   *
 222   * @param array $block A single parsed block object.
 223   *
 224   * @return array The migrated block object.
 225   */
 226  function block_core_latest_posts_migrate_categories( $block ) {
 227      if (
 228          'core/latest-posts' === $block['blockName'] &&
 229          ! empty( $block['attrs']['categories'] ) &&
 230          is_string( $block['attrs']['categories'] )
 231      ) {
 232          $block['attrs']['categories'] = array(
 233              array( 'id' => absint( $block['attrs']['categories'] ) ),
 234          );
 235      }
 236  
 237      return $block;
 238  }
 239  add_filter( 'render_block_data', 'block_core_latest_posts_migrate_categories' );