original_string: private function get_attachments_for_posts(array $groupedposts) : array {
          $attachmentsbypostid = [];
          $postattachmentvault = $this->vaultfactory->get_post_attachment_vault();
          $postsbyforum = array_reduce($groupedposts, function($carry, $grouping) {
              ['forum' => $forum, 'posts' => $posts] = $grouping;
  
              $forumid = $forum->get_id();
              if (!isset($carry[$forumid])) {
                  $carry[$forumid] = [
                      'forum' => $forum,
                      'posts' => []
                  ];
              }
  
              $carry[$forumid]['posts'] = array_merge($carry[$forumid]['posts'], $posts);
              return $carry;
          }, []);
  
          foreach ($postsbyforum as $grouping) {
              ['forum' => $forum, 'posts' => $posts] = $grouping;
              $attachments = $postattachmentvault->get_attachments_for_posts($forum->get_context(), $posts);
  
              // Have to loop in order to maintain the correct indexes since they are numeric.
              foreach ($attachments as $postid => $attachment) {
                  $attachmentsbypostid[$postid] = $attachment;
              }
          }
  
          return $attachmentsbypostid;
      }
code: private function get_attachments_for_posts(array $groupedposts) : array {
          $attachmentsbypostid = [];
          $postattachmentvault = $this->vaultfactory->get_post_attachment_vault();
          $postsbyforum = array_reduce($groupedposts, function($carry, $grouping) {
              ['forum' => $forum, 'posts' => $posts] = $grouping;
  
              $forumid = $forum->get_id();
              if (!isset($carry[$forumid])) {
                  $carry[$forumid] = [
                      'forum' => $forum,
                      'posts' => []
                  ];
              }
  
              $carry[$forumid]['posts'] = array_merge($carry[$forumid]['posts'], $posts);
              return $carry;
          }, []);
  
          foreach ($postsbyforum as $grouping) {
              ['forum' => $forum, 'posts' => $posts] = $grouping;
              $attachments = $postattachmentvault->get_attachments_for_posts($forum->get_context(), $posts);
  
              // Have to loop in order to maintain the correct indexes since they are numeric.
              foreach ($attachments as $postid => $attachment) {
                  $attachmentsbypostid[$postid] = $attachment;
              }
          }
  
          return $attachmentsbypostid;
      }
code_tokens: private function get_attachments_for_posts ( array $ groupedposts ) : array { $ attachmentsbypostid = [ ] ; $ postattachmentvault = $ this -> vaultfactory -> get_post_attachment_vault ( ) ; $ postsbyforum = array_reduce ( $ groupedposts , function ( $ carry , $ grouping ) { [ 'forum' => $ forum , 'posts' => $ posts ] = $ grouping ; $ forumid = $ forum -> get_id ( ) ; if ( ! isset ( $ carry [ $ forumid ] ) ) { $ carry [ $ forumid ] = [ 'forum' => $ forum , 'posts' => [ ] ] ; } $ carry [ $ forumid ] [ 'posts' ] = array_merge ( $ carry [ $ forumid ] [ 'posts' ] , $ posts ) ; return $ carry ; } , [ ] ) ; foreach ( $ postsbyforum as $ grouping ) { [ 'forum' => $ forum , 'posts' => $ posts ] = $ grouping ; $ attachments = $ postattachmentvault -> get_attachments_for_posts ( $ forum -> get_context ( ) , $ posts ) ; // Have to loop in order to maintain the correct indexes since they are numeric. foreach ( $ attachments as $ postid => $ attachment ) { $ attachmentsbypostid [ $ postid ] = $ attachment ; } } return $ attachmentsbypostid ; }
docstring: Load the list of all attachments for the posts. The list of attachments will be
  indexed by the post id.
  
  @param array $groupedposts List of posts grouped by discussions.
  @return stored_file[]
docstring_tokens: Load the list of all attachments for the posts . The list of attachments will be indexed by the post id .