--- /dev/null
+<?php
+
+namespace Drupal\comment\Plugin\views\wizard;
+
+use Drupal\views\Plugin\views\wizard\WizardPluginBase;
+
+/**
+ * @todo: replace numbers with constants.
+ */
+
+/**
+ * Tests creating comment views with the wizard.
+ *
+ * @ViewsWizard(
+ * id = "comment",
+ * base_table = "comment_field_data",
+ * title = @Translation("Comments")
+ * )
+ */
+class Comment extends WizardPluginBase {
+
+ /**
+ * Set the created column.
+ */
+ protected $createdColumn = 'created';
+
+ /**
+ * Set default values for the filters.
+ */
+ protected $filters = [
+ 'status' => [
+ 'value' => TRUE,
+ 'table' => 'comment_field_data',
+ 'field' => 'status',
+ 'plugin_id' => 'boolean',
+ 'entity_type' => 'comment',
+ 'entity_field' => 'status',
+ ],
+ 'status_node' => [
+ 'value' => TRUE,
+ 'table' => 'node_field_data',
+ 'field' => 'status',
+ 'plugin_id' => 'boolean',
+ 'relationship' => 'node',
+ 'entity_type' => 'node',
+ 'entity_field' => 'status',
+ ],
+ ];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function rowStyleOptions() {
+ $options = [];
+ $options['entity:comment'] = $this->t('comments');
+ $options['fields'] = $this->t('fields');
+ return $options;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function defaultDisplayOptions() {
+ $display_options = parent::defaultDisplayOptions();
+
+ // Add permission-based access control.
+ $display_options['access']['type'] = 'perm';
+ $display_options['access']['options']['perm'] = 'access comments';
+
+ // Add a relationship to nodes.
+ $display_options['relationships']['node']['id'] = 'node';
+ $display_options['relationships']['node']['table'] = 'comment_field_data';
+ $display_options['relationships']['node']['field'] = 'node';
+ $display_options['relationships']['node']['entity_type'] = 'comment_field_data';
+ $display_options['relationships']['node']['required'] = 1;
+ $display_options['relationships']['node']['plugin_id'] = 'standard';
+
+ // Remove the default fields, since we are customizing them here.
+ unset($display_options['fields']);
+
+ /* Field: Comment: Title */
+ $display_options['fields']['subject']['id'] = 'subject';
+ $display_options['fields']['subject']['table'] = 'comment_field_data';
+ $display_options['fields']['subject']['field'] = 'subject';
+ $display_options['fields']['subject']['entity_type'] = 'comment';
+ $display_options['fields']['subject']['entity_field'] = 'subject';
+ $display_options['fields']['subject']['label'] = '';
+ $display_options['fields']['subject']['alter']['alter_text'] = 0;
+ $display_options['fields']['subject']['alter']['make_link'] = 0;
+ $display_options['fields']['subject']['alter']['absolute'] = 0;
+ $display_options['fields']['subject']['alter']['trim'] = 0;
+ $display_options['fields']['subject']['alter']['word_boundary'] = 0;
+ $display_options['fields']['subject']['alter']['ellipsis'] = 0;
+ $display_options['fields']['subject']['alter']['strip_tags'] = 0;
+ $display_options['fields']['subject']['alter']['html'] = 0;
+ $display_options['fields']['subject']['hide_empty'] = 0;
+ $display_options['fields']['subject']['empty_zero'] = 0;
+ $display_options['fields']['subject']['plugin_id'] = 'field';
+ $display_options['fields']['subject']['type'] = 'string';
+ $display_options['fields']['subject']['settings'] = ['link_to_entity' => TRUE];
+
+ return $display_options;
+ }
+
+}