public function NodeNewComments::preRender in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/comment/src/Plugin/views/field/NodeNewComments.php \Drupal\comment\Plugin\views\field\NodeNewComments::preRender()
2. 10 core/modules/comment/src/Plugin/views/field/NodeNewComments.php \Drupal\comment\Plugin\views\field\NodeNewComments::preRender()

Runs before any fields are rendered.

This gives the handlers some time to set up before any handler has been rendered.

Parameters

\Drupal\views\ResultRow[] $values: An array of all ResultRow objects returned from the query.

Overrides FieldPluginBase::preRender

File

core/modules/comment/src/Plugin/views/field/NodeNewComments.php, line 139

Class

NodeNewComments

Field handler to display the number of new comments.

Namespace

Drupal\comment\Plugin\views\field

Code

public function preRender(&$values) {
  $user = \Drupal::currentUser();
  if ($user
    ->isAnonymous() || empty($values)) {
    return;
  }
  $nids = [];
  $ids = [];
  foreach ($values as $id => $result) {
    $nids[] = $result->{$this->aliases['nid']};
    $values[$id]->{$this->field_alias} = 0;

    // Create a reference so we can find this record in the values again.
    if (empty($ids[$result->{$this->aliases['nid']}])) {
      $ids[$result->{$this->aliases['nid']}] = [];
    }
    $ids[$result->{$this->aliases['nid']}][] = $id;
  }
  if ($nids) {
    $result = $this->database
      ->query("SELECT [n].[nid], COUNT([c].[cid]) AS [num_comments] FROM {node} [n] INNER JOIN {comment_field_data} [c] ON [n].[nid] = [c].[entity_id] AND [c].[entity_type] = 'node' AND [c].[default_langcode] = 1\n        LEFT JOIN {history} [h] ON [h].[nid] = [n].[nid] AND [h].[uid] = :h_uid WHERE [n].[nid] IN ( :nids[] )\n        AND [c].[changed] > GREATEST(COALESCE([h].[timestamp], :timestamp1), :timestamp2) AND [c].[status] = :status GROUP BY [n].[nid]", [
      ':status' => CommentInterface::PUBLISHED,
      ':h_uid' => $user
        ->id(),
      ':nids[]' => $nids,
      ':timestamp1' => HISTORY_READ_LIMIT,
      ':timestamp2' => HISTORY_READ_LIMIT,
    ]);
    foreach ($result as $node) {
      foreach ($ids[$node->nid] as $id) {
        $values[$id]->{$this->field_alias} = $node->num_comments;
      }
    }
  }
}