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   1  <?php
   2  /**
   3   * Server-side rendering of the `core/latest-posts` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Renders the `core/latest-posts` block on server.
  10   *
  11   * @param array $attributes The block attributes.
  12   *
  13   * @return string Returns the post content with latest posts added.
  14   */
  15  function render_block_core_latest_posts( $attributes ) {
  16      $args = array(
  17          'posts_per_page'   => $attributes['postsToShow'],
  18          'post_status'      => 'publish',
  19          'order'            => $attributes['order'],
  20          'orderby'          => $attributes['orderBy'],
  21          'suppress_filters' => false,
  22      );
  23  
  24      if ( isset( $attributes['categories'] ) ) {
  25          $args['category'] = $attributes['categories'];
  26      }
  27  
  28      $recent_posts = get_posts( $args );
  29  
  30      $list_items_markup = '';
  31  
  32      $excerpt_length = $attributes['excerptLength'];
  33  
  34      foreach ( $recent_posts as $post ) {
  35          $title = get_the_title( $post );
  36          if ( ! $title ) {
  37              $title = __( '(no title)' );
  38          }
  39          $list_items_markup .= sprintf(
  40              '<li><a href="%1$s">%2$s</a>',
  41              esc_url( get_permalink( $post ) ),
  42              $title
  43          );
  44  
  45          if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
  46              $list_items_markup .= sprintf(
  47                  '<time datetime="%1$s" class="wp-block-latest-posts__post-date">%2$s</time>',
  48                  esc_attr( get_the_date( 'c', $post ) ),
  49                  esc_html( get_the_date( '', $post ) )
  50              );
  51          }
  52  
  53          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
  54              && isset( $attributes['displayPostContentRadio'] ) && 'excerpt' === $attributes['displayPostContentRadio'] ) {
  55              $post_excerpt = $post->post_excerpt;
  56              if ( ! ( $post_excerpt ) ) {
  57                  $post_excerpt = $post->post_content;
  58              }
  59              $trimmed_excerpt = esc_html( wp_trim_words( $post_excerpt, $excerpt_length, ' &hellip; ' ) );
  60  
  61              $list_items_markup .= sprintf(
  62                  '<div class="wp-block-latest-posts__post-excerpt">%1$s',
  63                  $trimmed_excerpt
  64              );
  65  
  66              if ( strpos( $trimmed_excerpt, ' &hellip; ' ) !== false ) {
  67                  $list_items_markup .= sprintf(
  68                      '<a href="%1$s">%2$s</a></div>',
  69                      esc_url( get_permalink( $post ) ),
  70                      __( 'Read more' )
  71                  );
  72              } else {
  73                  $list_items_markup .= sprintf(
  74                      '</div>'
  75                  );
  76              }
  77          }
  78  
  79          if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
  80              && isset( $attributes['displayPostContentRadio'] ) && 'full_post' === $attributes['displayPostContentRadio'] ) {
  81              $list_items_markup .= sprintf(
  82                  '<div class="wp-block-latest-posts__post-full-content">%1$s</div>',
  83                  wp_kses_post( html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) ) )
  84              );
  85          }
  86  
  87          $list_items_markup .= "</li>\n";
  88      }
  89  
  90      $class = 'wp-block-latest-posts wp-block-latest-posts__list';
  91      if ( isset( $attributes['align'] ) ) {
  92          $class .= ' align' . $attributes['align'];
  93      }
  94  
  95      if ( isset( $attributes['postLayout'] ) && 'grid' === $attributes['postLayout'] ) {
  96          $class .= ' is-grid';
  97      }
  98  
  99      if ( isset( $attributes['columns'] ) && 'grid' === $attributes['postLayout'] ) {
 100          $class .= ' columns-' . $attributes['columns'];
 101      }
 102  
 103      if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
 104          $class .= ' has-dates';
 105      }
 106  
 107      if ( isset( $attributes['className'] ) ) {
 108          $class .= ' ' . $attributes['className'];
 109      }
 110  
 111      return sprintf(
 112          '<ul class="%1$s">%2$s</ul>',
 113          esc_attr( $class ),
 114          $list_items_markup
 115      );
 116  }
 117  
 118  /**
 119   * Registers the `core/latest-posts` block on server.
 120   */
 121  function register_block_core_latest_posts() {
 122      register_block_type(
 123          'core/latest-posts',
 124          array(
 125              'attributes'      => array(
 126                  'align'                   => array(
 127                      'type' => 'string',
 128                      'enum' => array( 'left', 'center', 'right', 'wide', 'full' ),
 129                  ),
 130                  'className'               => array(
 131                      'type' => 'string',
 132                  ),
 133                  'categories'              => array(
 134                      'type' => 'string',
 135                  ),
 136                  'postsToShow'             => array(
 137                      'type'    => 'number',
 138                      'default' => 5,
 139                  ),
 140                  'displayPostContent'      => array(
 141                      'type'    => 'boolean',
 142                      'default' => false,
 143                  ),
 144                  'displayPostContentRadio' => array(
 145                      'type'    => 'string',
 146                      'default' => 'excerpt',
 147                  ),
 148                  'excerptLength'           => array(
 149                      'type'    => 'number',
 150                      'default' => 55,
 151                  ),
 152                  'displayPostDate'         => array(
 153                      'type'    => 'boolean',
 154                      'default' => false,
 155                  ),
 156                  'postLayout'              => array(
 157                      'type'    => 'string',
 158                      'default' => 'list',
 159                  ),
 160                  'columns'                 => array(
 161                      'type'    => 'number',
 162                      'default' => 3,
 163                  ),
 164                  'order'                   => array(
 165                      'type'    => 'string',
 166                      'default' => 'desc',
 167                  ),
 168                  'orderBy'                 => array(
 169                      'type'    => 'string',
 170                      'default' => 'date',
 171                  ),
 172              ),
 173              'render_callback' => 'render_block_core_latest_posts',
 174          )
 175      );
 176  }
 177  add_action( 'init', 'register_block_core_latest_posts' );