Copied all module handlers to new plugin folder structure

lib/Drupal/aggregator/Plugin/views/argument/views_handler_argument_aggregator_category_cid.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_argument_aggregator_category_cid.
+ */
+
+use Drupal\views\Plugins\views\argument\Numeric;
+
+/**
+ * Argument handler to accept an aggregator category id.
+ *
+ * @ingroup views_argument_handlers
+ */
+class views_handler_argument_aggregator_category_cid extends Numeric {
+  /**
+   * Override the behavior of title(). Get the title of the category.
+   */
+  function title_query() {
+    $titles = array();
+
+    $result = db_query("SELECT c.title FROM {aggregator_category} c WHERE c.cid IN (:cid)", array(':cid' => $this->value));
+    foreach ($result as $term) {
+      $titles[] = check_plain($term->title);
+    }
+    return $titles;
+  }
+}

lib/Drupal/aggregator/Plugin/views/argument/views_handler_argument_aggregator_fid.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_argument_aggregator_fid.
+ */
+
+use Drupal\views\Plugins\views\argument\Numeric;
+
+/**
+ * Argument handler to accept an aggregator feed id.
+ *
+ * @ingroup views_argument_handlers
+ */
+class views_handler_argument_aggregator_fid extends Numeric {
+  /**
+   * Override the behavior of title(). Get the title of the feed.
+   */
+  function title_query() {
+    $titles = array();
+
+    $result = db_query("SELECT f.title FROM {aggregator_feed} f WHERE f.fid IN (:fids)", array(':fids' => $this->value));
+    foreach ($result as $term) {
+      $titles[] = check_plain($term->title);
+    }
+    return $titles;
+  }
+}

lib/Drupal/aggregator/Plugin/views/argument/views_handler_argument_aggregator_iid.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_argument_aggregator_iid.
+ */
+
+use Drupal\views\Plugins\views\argument\Numeric;
+
+/**
+ * Argument handler to accept an aggregator item id.
+ *
+ * @ingroup views_argument_handlers
+ */
+class views_handler_argument_aggregator_iid extends Numeric {
+  /**
+   * Override the behavior of title(). Get the title of the category.
+   */
+  function title_query() {
+    $titles = array();
+    $placeholders = implode(', ', array_fill(0, sizeof($this->value), '%d'));
+
+    $result = db_select('aggregator_item')
+      ->condition('iid', $this->value, 'IN')
+      ->fields(array('title'))
+      ->execute();
+    foreach ($result as $term) {
+      $titles[] = check_plain($term->title);
+    }
+    return $titles;
+  }
+}

lib/Drupal/aggregator/Plugin/views/field/views_handler_field_aggregator_category.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_aggregator_category.
+ */
+
+use Drupal\views\Plugins\views\field\FieldPluginBase;
+
+/**
+ * Field handler to provide simple renderer that allows linking to aggregator
+ * category.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_aggregator_category extends FieldPluginBase {
+  /**
+   * Constructor to provide additional field to add.
+   */
+  function construct() {
+    parent::construct();
+    $this->additional_fields['cid'] = 'cid';
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['link_to_category'] = array('default' => FALSE, 'bool' => TRUE);
+    return $options;
+  }
+
+  /**
+   * Provide link to category option
+   */
+  function options_form(&$form, &$form_state) {
+    $form['link_to_category'] = array(
+      '#title' => t('Link this field to its aggregator category page'),
+      '#description' => t('This will override any other link you have set.'),
+      '#type' => 'checkbox',
+      '#default_value' => !empty($this->options['link_to_category']),
+    );
+    parent::options_form($form, $form_state);
+  }
+
+  /**
+   * Render whatever the data is as a link to the category.
+   *
+   * Data should be made XSS safe prior to calling this function.
+   */
+  function render_link($data, $values) {
+    $cid = $this->get_value($values, 'cid');
+    if (!empty($this->options['link_to_category']) && !empty($cid) && $data !== NULL && $data !== '') {
+      $this->options['alter']['make_link'] = TRUE;
+      $this->options['alter']['path'] = "aggregator/category/$cid";
+    }
+    return $data;
+  }
+
+  function render($values) {
+    $value = $this->get_value($values);
+    return $this->render_link($this->sanitize_value($value), $values);
+  }
+}

lib/Drupal/aggregator/Plugin/views/field/views_handler_field_aggregator_title_link.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_aggregator_title_link.
+ */
+
+use Drupal\views\Plugins\views\field\FieldPluginBase;
+
+/**
+ * Field handler that turns an item's title into a clickable link to the original
+ * source article.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_aggregator_title_link extends FieldPluginBase {
+  function construct() {
+    parent::construct();
+    $this->additional_fields['link'] = 'link';
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+
+    $options['display_as_link'] = array('default' => TRUE, 'bool' => TRUE);
+
+    return $options;
+  }
+
+  /**
+   * Provide link to the page being visited.
+   */
+  function options_form(&$form, &$form_state) {
+    $form['display_as_link'] = array(
+      '#title' => t('Display as link'),
+      '#type' => 'checkbox',
+      '#default_value' => !empty($this->options['display_as_link']),
+    );
+    parent::options_form($form, $form_state);
+  }
+
+  function render($values) {
+    $value = $this->get_value($values);
+    return $this->render_link($this->sanitize_value($value), $values);
+  }
+
+  function render_link($data, $values) {
+    $link = $this->get_value($values, 'link');
+    if (!empty($this->options['display_as_link'])) {
+      $this->options['alter']['make_link'] = TRUE;
+      $this->options['alter']['path'] = $link;
+      $this->options['alter']['html'] = TRUE;
+    }
+
+    return $data;
+  }
+}

lib/Drupal/aggregator/Plugin/views/field/views_handler_field_aggregator_xss.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_aggregator_xss.
+ */
+
+use Drupal\views\Plugins\views\field\FieldPluginBase;
+
+/**
+ * Filters htmls tags from item.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_aggregator_xss extends FieldPluginBase {
+  function render($values) {
+    $value = $this->get_value($values);
+    return aggregator_filter_xss($value);
+  }
+}

lib/Drupal/aggregator/Plugin/views/filter/views_handler_filter_aggregator_category_cid.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_filter_aggregator_category_cid.
+ */
+
+use Drupal\views\Plugins\views\filter\InOperator;
+
+/**
+ * Filter by aggregator category cid
+ *
+ * @ingroup views_filter_handlers
+ */
+class views_handler_filter_aggregator_category_cid extends InOperator {
+  function get_value_options() {
+    if (isset($this->value_options)) {
+      return;
+    }
+
+    $this->value_options = array();
+
+    $result = db_query('SELECT * FROM {aggregator_category} ORDER BY title');
+    foreach ($result as $category) {
+      $this->value_options[$category->cid] = $category->title;
+    }
+  }
+}

lib/Drupal/aggregator/Plugin/views/row/views_plugin_row_aggregator_rss.inc

+<?php
+
+/**
+ * @file
+ * Contains the Aggregator Item RSS row style plugin.
+ */
+
+use Drupal\views\Plugins\views\row\RowPluginBase;
+
+/**
+ * Plugin which loads an aggregator item and formats it as an RSS item.
+ */
+class views_plugin_row_aggregator_rss extends RowPluginBase {
+  var $base_table = 'aggregator_item';
+  var $base_field = 'iid';
+
+  function option_definition() {
+    $options = parent::option_definition();
+
+    $options['item_length'] = array('default' => 'default');
+
+    return $options;
+  }
+
+  function options_form(&$form, &$form_state) {
+    $form['item_length'] = array(
+      '#type' => 'select',
+      '#title' => t('Display type'),
+      '#options' => array(
+        'fulltext' => t('Full text'),
+        'teaser' => t('Title plus teaser'),
+        'title' => t('Title only'),
+        'default' => t('Use default RSS settings'),
+      ),
+      '#default_value' => $this->options['item_length'],
+    );
+  }
+
+  function render($row) {
+    $iid =  $row->{$this->field_alias};
+    $sql =  "SELECT ai.iid, ai.fid, ai.title, ai.link, ai.author, ai.description, ";
+    $sql .= "ai.timestamp, ai.guid, af.title AS feed_title, ai.link AS feed_LINK ";
+    $sql .= "FROM {aggregator_item} ai LEFT JOIN {aggregator_feed} af ON ai.fid = af.fid ";
+    $sql .= "WHERE ai.iid = :iid";
+
+    $item = db_query($sql, array(':iid' => $iid))->fetchObject();
+
+    $item->elements = array(
+      array(
+        'key' => 'pubDate',
+        'value' => gmdate('r', $item->timestamp),
+      ),
+      array(
+        'key' => 'dc:creator',
+        'value' => $item->author,
+      ),
+      array(
+        'key' => 'guid',
+        'value' => $item->guid,
+        'attributes' => array('isPermaLink' => 'false')
+      ),
+    );
+
+    foreach ($item->elements as $element) {
+      if (isset($element['namespace'])) {
+        $this->view->style_plugin->namespaces = array_merge($this->view->style_plugin->namespaces, $element['namespace']);
+      }
+    }
+
+    return theme($this->theme_functions(), array(
+      'view' => $this->view,
+      'options' => $this->options,
+      'row' => $item
+    ));
+  }
+}

lib/Drupal/book/Plugin/views/argument_default/views_plugin_argument_default_book_root.inc

+<?php
+/**
+ * @file
+ * Contains the book root from current node argument default plugin.
+ */
+
+use Drupal\views\Plugins\views\argument_default\Node;
+
+/**
+ * Default argument plugin to get the current node's book root.
+ */
+class views_plugin_argument_default_book_root extends Node {
+  function get_argument() {
+    // Use the argument_default_node plugin to get the nid argument.
+    $nid = parent::get_argument();
+    if (!empty($nid)) {
+      $node = node_load($nid);
+      if (isset($node->book['bid'])) {
+        return $node->book['bid'];
+      }
+    }
+  }
+}

lib/Drupal/comment/Plugin/views/argument/views_handler_argument_comment_user_uid.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_argument_comment_user_uid.
+ */
+
+/**
+ * Argument handler to accept a user id to check for nodes that
+ * user posted or commented on.
+ *
+ * @ingroup views_argument_handlers
+ */
+class views_handler_argument_comment_user_uid extends views_handler_argument {
+  function title() {
+    if (!$this->argument) {
+      $title = variable_get('anonymous', t('Anonymous'));
+    }
+    else {
+      $title = db_query('SELECT u.name FROM {users} u WHERE u.uid = :uid', array(':uid' => $this->argument))->fetchField();
+    }
+    if (empty($title)) {
+      return t('No user');
+    }
+
+    return check_plain($title);
+  }
+
+  function default_actions($which = NULL) {
+    // Disallow summary views on this argument.
+    if (!$which) {
+      $actions = parent::default_actions();
+      unset($actions['summary asc']);
+      unset($actions['summary desc']);
+      return $actions;
+    }
+
+    if ($which != 'summary asc' && $which != 'summary desc') {
+      return parent::default_actions($which);
+    }
+  }
+
+  function query($group_by = FALSE) {
+    $this->ensure_my_table();
+
+    $subselect = db_select('comment', 'c');
+    $subselect->addField('c', 'cid');
+    $subselect->condition('c.uid', $this->argument);
+    $subselect->where("c.nid = $this->table_alias.nid");
+
+    $condition = db_or()
+      ->condition("$this->table_alias.uid", $this->argument, '=')
+      ->exists($subselect);
+
+    $this->query->add_where(0, $condition);
+  }
+
+  function get_sort_name() {
+    return t('Numerical', array(), array('context' => 'Sort order'));
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment.
+ */
+
+use Drupal\views\Plugins\views\field\FieldPluginBase;
+
+/**
+ * Field handler to allow linking to a comment.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment extends FieldPluginBase {
+  /**
+   * Override init function to provide generic option to link to comment.
+   */
+  function init(&$view, &$options) {
+    parent::init($view, $options);
+    if (!empty($this->options['link_to_comment'])) {
+      $this->additional_fields['cid'] = 'cid';
+      $this->additional_fields['nid'] = 'nid';
+    }
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['link_to_comment'] = array('default' => TRUE, 'bool' => TRUE);
+    $options['link_to_node'] = array('default' => FALSE, 'bool' => TRUE);
+
+    return $options;
+  }
+
+  /**
+   * Provide link-to-comment option
+   */
+  function options_form(&$form, &$form_state) {
+    $form['link_to_comment'] = array(
+      '#title' => t('Link this field to its comment'),
+      '#description' => t("Enable to override this field's links."),
+      '#type' => 'checkbox',
+      '#default_value' => $this->options['link_to_comment'],
+    );
+    $form['link_to_node'] = array(
+      '#title' => t('Link field to the node if there is no comment.'),
+      '#type' => 'checkbox',
+      '#default_value' => $this->options['link_to_node'],
+    );
+    parent::options_form($form, $form_state);
+  }
+
+  function render_link($data, $values) {
+    if (!empty($this->options['link_to_comment'])) {
+      $this->options['alter']['make_link'] = TRUE;
+      $nid = $this->get_value($values, 'nid');
+      $cid = $this->get_value($values, 'cid');
+      if (!empty($cid)) {
+        $this->options['alter']['path'] = "comment/" . $cid;
+        $this->options['alter']['fragment'] = "comment-" . $cid;
+      }
+      // If there is no comment link to the node.
+      else if ($this->options['link_to_node']) {
+        $this->options['alter']['path'] = "node/" . $nid;
+      }
+    }
+
+    return $data;
+  }
+
+  function render($values) {
+    $value = $this->get_value($values);
+    return $this->render_link($this->sanitize_value($value), $values);
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_depth.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_depth.
+ */
+
+/**
+ * Field handler to display the depth of a comment.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_depth extends views_handler_field {
+  /**
+   * Work out the depth of this comment
+   */
+  function render($values) {
+    $comment_thread = $this->get_value($values);
+    return count(explode('.', $comment_thread)) - 1;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_link.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_link.
+ */
+
+/**
+ * Base field handler to present a link.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_link extends views_handler_field_entity {
+  function construct() {
+    parent::construct();
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['text'] = array('default' => '', 'translatable' => TRUE);
+    $options['link_to_node'] = array('default' => FALSE, 'bool' => TRUE);
+    return $options;
+  }
+
+  function options_form(&$form, &$form_state) {
+    $form['text'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Text to display'),
+      '#default_value' => $this->options['text'],
+    );
+    $form['link_to_node'] = array(
+      '#title' => t('Link field to the node if there is no comment.'),
+      '#type' => 'checkbox',
+      '#default_value' => $this->options['link_to_node'],
+    );
+    parent::options_form($form, $form_state);
+  }
+
+  function query() {
+    $this->ensure_my_table();
+    $this->add_additional_fields();
+  }
+
+  function render($values) {
+    $value = $this->get_value($values, 'cid');
+    return $this->render_link($this->sanitize_value($value), $values);
+  }
+
+  function render_link($data, $values) {
+    $text = !empty($this->options['text']) ? $this->options['text'] : t('view');
+    $comment = $this->get_value($values);
+    $nid = $comment->nid;
+    $cid = $comment->cid;
+
+    $this->options['alter']['make_link'] = TRUE;
+    $this->options['alter']['html'] = TRUE;
+
+    if (!empty($cid)) {
+      $this->options['alter']['path'] = "comment/" . $cid;
+      $this->options['alter']['fragment'] = "comment-" . $cid;
+    }
+    // If there is no comment link to the node.
+    else if ($this->options['link_to_node']) {
+      $this->options['alter']['path'] = "node/" . $nid;
+    }
+
+    return $text;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_link_approve.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_link_approve.
+ */
+
+/**
+ * Provides a comment approve link.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_link_approve extends views_handler_field_comment_link {
+  function access() {
+    //needs permission to administer comments in general
+    return user_access('administer comments');
+  }
+
+  function render_link($data, $values) {
+    $status = $this->get_value($values, 'status');
+
+    // Don't show an approve link on published nodes.
+    if ($status == COMMENT_PUBLISHED) {
+      return;
+    }
+
+    $text = !empty($this->options['text']) ? $this->options['text'] : t('approve');
+    $cid =  $this->get_value($values, 'cid');
+
+    $this->options['alter']['make_link'] = TRUE;
+    $this->options['alter']['path'] = "comment/" . $cid . "/approve";
+    $this->options['alter']['query'] = drupal_get_destination() + array('token' => drupal_get_token("comment/$cid/approve"));
+
+    return $text;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_link_delete.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_link_delete.
+ */
+
+/**
+ * Field handler to present a link to delete a node.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_link_delete extends views_handler_field_comment_link {
+  function access() {
+    //needs permission to administer comments in general
+    return user_access('administer comments');
+  }
+
+  function render_link($data, $values) {
+    $text = !empty($this->options['text']) ? $this->options['text'] : t('delete');
+    $cid =  $this->get_value($values, 'cid');
+
+    $this->options['alter']['make_link'] = TRUE;
+    $this->options['alter']['path'] = "comment/" . $cid . "/delete";
+    $this->options['alter']['query'] = drupal_get_destination();
+
+    return $text;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_link_edit.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_link_edit.
+ */
+
+/**
+ * Field handler to present a link node edit.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_link_edit extends views_handler_field_comment_link {
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['destination'] = array('default' => FALSE, 'bool' => TRUE);
+
+    return $options;
+  }
+
+  function options_form(&$form, &$form_state) {
+    parent::options_form($form, $form_state);
+
+    $form['destination'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Use destination'),
+      '#description' => t('Add destination to the link'),
+      '#default_value' => $this->options['destination'],
+      '#fieldset' => 'more',
+    );
+  }
+
+  function render_link($data, $values) {
+    parent::render_link($data, $values);
+    // ensure user has access to edit this comment.
+    $comment = $this->get_value($values);
+    if (!comment_access('edit', $comment)) {
+      return;
+    }
+
+    $text = !empty($this->options['text']) ? $this->options['text'] : t('edit');
+    unset($this->options['alter']['fragment']);
+
+    if (!empty($this->options['destination'])) {
+      $this->options['alter']['query'] = drupal_get_destination();
+    }
+
+    $this->options['alter']['path'] = "comment/" . $comment->cid . "/edit";
+
+    return $text;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_link_reply.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_link_reply.
+ */
+
+/**
+ * Field handler to present a link to delete a node.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_link_reply extends views_handler_field_comment_link {
+  function access() {
+    //check for permission to reply to comments
+    return user_access('post comments');
+  }
+
+  function render_link($data, $values) {
+    $text = !empty($this->options['text']) ? $this->options['text'] : t('reply');
+    $nid =  $this->get_value($values, 'nid');
+    $cid =  $this->get_value($values, 'cid');
+
+    $this->options['alter']['make_link'] = TRUE;
+    $this->options['alter']['path'] = "comment/reply/" . $nid . '/' . $cid;
+
+    return $text;
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_node_link.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_node_link.
+ */
+
+/**
+ * Handler for showing comment module's node link.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_node_link extends views_handler_field_entity {
+  function construct() {
+    parent::construct();
+
+    // Add the node fields that comment_link will need..
+    $this->additional_fields['nid'] = array(
+      'field' => 'nid',
+    );
+    $this->additional_fields['type'] = array(
+      'field' => 'type',
+    );
+    $this->additional_fields['comment'] = array(
+      'field' => 'comment',
+    );
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['teaser'] = array('default' => FALSE, 'bool' => TRUE);
+    return $options;
+  }
+
+  function options_form(&$form, &$form_state) {
+    $form['teaser'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Show teaser-style link'),
+      '#default_value' => $this->options['teaser'],
+      '#description' => t('Show the comment link in the form used on standard node teasers, rather than the full node form.'),
+    );
+
+    parent::options_form($form, $form_state);
+  }
+
+  function query() {
+    $this->ensure_my_table();
+    $this->add_additional_fields();
+  }
+
+  function render($values) {
+    // Build fake $node.
+    $node = $this->get_value($values);
+
+    // Call comment.module's hook_link: comment_link($type, $node = NULL, $teaser = FALSE)
+    // Call node by reference so that something is changed here
+    comment_node_view($node, $this->options['teaser'] ? 'teaser' : 'full');
+    // question: should we run these through:    drupal_alter('link', $links, $node);
+    // might this have unexpected consequences if these hooks expect items in $node that we don't have?
+
+    // Only render the links, if they are defined.
+    return !empty($node->content['links']['comment']) ? drupal_render($node->content['links']['comment']) : '';
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_comment_username.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_comment_username.
+ */
+
+/**
+ * Field handler to allow linking to a user account or homepage.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_comment_username extends views_handler_field {
+  /**
+   * Override init function to add uid and homepage fields.
+   */
+  function init(&$view, &$data) {
+    parent::init($view, $data);
+    $this->additional_fields['uid'] = 'uid';
+    $this->additional_fields['homepage'] = 'homepage';
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+    $options['link_to_user'] = array('default' => TRUE, 'bool' => TRUE);
+    return $options;
+  }
+
+  function options_form(&$form, &$form_state) {
+    $form['link_to_user'] = array(
+      '#title' => t("Link this field to its user or an author's homepage"),
+      '#type' => 'checkbox',
+      '#default_value' => $this->options['link_to_user'],
+    );
+    parent::options_form($form, $form_state);
+  }
+
+  function render_link($data, $values) {
+    if (!empty($this->options['link_to_user'])) {
+      $account = entity_create('user', array());
+      $account->uid = $this->get_value($values, 'uid');
+      $account->name = $this->get_value($values);
+      $account->homepage = $this->get_value($values, 'homepage');
+
+      return theme('username', array(
+        'account' => $account
+      ));
+    }
+    else {
+      return $data;
+    }
+  }
+
+  function render($values) {
+    $value = $this->get_value($values);
+    return $this->render_link($this->sanitize_value($value), $values);
+  }
+}

lib/Drupal/comment/Plugin/views/field/views_handler_field_last_comment_timestamp.inc

+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_last_comment_timestamp.
+ */
+
+/**
+ * Field handler to display the timestamp of a comment with the count of comments.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_last_comment_timestamp extends views_handler_field_date {
+  function construct() {
+    parent::construct();
+    $this->additional_fields['comment_count'] = 'comment_count';
+  }
+
+  function render($values) {
+    $comment_count = $this->get_value($values, 'comment_count');
+    if (empty($this->options['empty_zero']) || $comment_count) {
+      return parent::render($values);
+    }
+    else {
+      return NULL;
+    }
+  }
+}