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vendor/yiisoft/yii2/db/IntegrityException.php

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+<?php
+/**
+ * @link https://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license https://www.yiiframework.com/license/
+ */
+
+namespace yii\db;
+
+/**
+ * Exception represents an exception that is caused by violation of DB constraints.
+ *
+ * @author Alexander Makarov <sam@rmcreative.ru>
+ * @since 2.0
+ */
+class IntegrityException extends Exception
+{
+    /**
+     * @return string the user-friendly name of this exception
+     */
+    public function getName()
+    {
+        return 'Integrity constraint violation';
+    }
+}