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   1  <?php
   2  /**
   3   * Server-side rendering of the `core/post-date` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Renders the `core/post-date` block on the server.
  10   *
  11   * @since 5.8.0
  12   * @since 6.9.0 Added `datetime` attribute and Block Bindings support.
  13   *
  14   * @param array    $attributes Block attributes.
  15   * @param string   $content    Block default content.
  16   * @param WP_Block $block      Block instance.
  17   * @return string Returns the filtered post date for the current post wrapped inside "time" tags.
  18   */
  19  function render_block_core_post_date( $attributes, $content, $block ) {
  20      $classes = array();
  21  
  22      if (
  23          ! isset( $attributes['datetime'] ) && ! (
  24              isset( $attributes['metadata']['bindings']['datetime']['source'] ) &&
  25              isset( $attributes['metadata']['bindings']['datetime']['args'] )
  26          )
  27      ) {
  28          /*
  29           * This is the legacy version of the block that didn't have the `datetime` attribute.
  30           * This branch needs to be kept for backward compatibility.
  31           */
  32          $source = get_block_bindings_source( 'core/post-data' );
  33          if ( isset( $attributes['displayType'] ) && 'modified' === $attributes['displayType'] ) {
  34              $source_args = array(
  35                  'field' => 'modified',
  36              );
  37          } else {
  38              $source_args = array(
  39                  'field' => 'date',
  40              );
  41          }
  42          $attributes['datetime'] = $source->get_value( $source_args, $block, 'datetime' );
  43      }
  44  
  45      if ( isset( $source_args['field'] ) && 'modified' === $source_args['field'] ) {
  46          $classes[] = 'wp-block-post-date__modified-date';
  47      }
  48  
  49      if ( empty( $attributes['datetime'] ) ) {
  50          // If the `datetime` attribute is set but empty, it could be because Block Bindings
  51          // set it that way. This can happen e.g. if the block is bound to the
  52          // post's last modified date, and the latter lies before the publish date.
  53          // (See https://github.com/WordPress/gutenberg/pull/46839 where this logic was originally
  54          // implemented.)
  55          // In this case, we have to respect and return the empty value.
  56          return '';
  57      }
  58  
  59      $unformatted_date = $attributes['datetime'];
  60      $post_timestamp   = strtotime( $unformatted_date );
  61  
  62      if ( isset( $attributes['format'] ) && 'human-diff' === $attributes['format'] ) {
  63          if ( $post_timestamp > time() ) {
  64              // translators: %s: human-readable time difference.
  65              $formatted_date = sprintf( __( '%s from now' ), human_time_diff( $post_timestamp ) );
  66          } else {
  67              // translators: %s: human-readable time difference.
  68              $formatted_date = sprintf( __( '%s ago' ), human_time_diff( $post_timestamp ) );
  69          }
  70      } else {
  71          $format         = empty( $attributes['format'] ) ? get_option( 'date_format' ) : $attributes['format'];
  72          $formatted_date = wp_date( $format, $post_timestamp );
  73      }
  74  
  75      if ( isset( $attributes['textAlign'] ) ) {
  76          $classes[] = 'has-text-align-' . $attributes['textAlign'];
  77      }
  78      if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {
  79          $classes[] = 'has-link-color';
  80      }
  81  
  82      $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );
  83  
  84      $time_tag = sprintf( '<time datetime="%1$s">%2$s</time>', $unformatted_date, $formatted_date );
  85  
  86      if ( isset( $attributes['isLink'] ) && $attributes['isLink'] && isset( $block->context['postId'] ) ) {
  87          $time_tag = sprintf( '<a href="%1s">%2s</a>', get_the_permalink( $block->context['postId'] ), $time_tag );
  88      }
  89  
  90      return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $time_tag );
  91  }
  92  
  93  /**
  94   * Registers the `core/post-date` block on the server.
  95   *
  96   * @since 5.8.0
  97   */
  98  function register_block_core_post_date() {
  99      register_block_type_from_metadata(
 100          __DIR__ . '/post-date',
 101          array(
 102              'render_callback' => 'render_block_core_post_date',
 103          )
 104      );
 105  }
 106  add_action( 'init', 'register_block_core_post_date' );