Version 1
[yaffs-website] / web / core / modules / comment / src / Plugin / views / sort / StatisticsLastCommentName.php
diff --git a/web/core/modules/comment/src/Plugin/views/sort/StatisticsLastCommentName.php b/web/core/modules/comment/src/Plugin/views/sort/StatisticsLastCommentName.php
new file mode 100644 (file)
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+<?php
+
+namespace Drupal\comment\Plugin\views\sort;
+
+use Drupal\views\Plugin\views\sort\SortPluginBase;
+
+/**
+ * Sort handler to sort by last comment name which might be in 2 different
+ * fields.
+ *
+ * @ingroup views_sort_handlers
+ *
+ * @ViewsSort("comment_ces_last_comment_name")
+ */
+class StatisticsLastCommentName extends SortPluginBase {
+
+  public function query() {
+    $this->ensureMyTable();
+    $definition = [
+      'table' => 'users_field_data',
+      'field' => 'uid',
+      'left_table' => 'comment_entity_statistics',
+      'left_field' => 'last_comment_uid',
+    ];
+    $join = \Drupal::service('plugin.manager.views.join')->createInstance('standard', $definition);
+
+    // @todo this might be safer if we had an ensure_relationship rather than guessing
+    // the table alias. Though if we did that we'd be guessing the relationship name
+    // so that doesn't matter that much.
+    $this->user_table = $this->query->ensureTable('ces_users', $this->relationship, $join);
+    $this->user_field = $this->query->addField($this->user_table, 'name');
+
+    // Add the field.
+    $this->query->addOrderBy(NULL, "LOWER(COALESCE($this->user_table.name, $this->tableAlias.$this->field))", $this->options['order'], $this->tableAlias . '_' . $this->field);
+  }
+
+}