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vendor/yiisoft/yii2/db/Exception.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db;
+
+/**
+ * Exception represents an exception that is caused by some DB-related operations.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class Exception extends \yii\base\Exception
+{
+    /**
+     * @var array the error info provided by a PDO exception. This is the same as returned
+     * by [PDO::errorInfo](http://www.php.net/manual/en/pdo.errorinfo.php).
+     */
+    public $errorInfo = [];
+
+
+    /**
+     * Constructor.
+     * @param string $message PDO error message
+     * @param array $errorInfo PDO error info
+     * @param int $code PDO error code
+     * @param \Exception $previous The previous exception used for the exception chaining.
+     */
+    public function __construct($message, $errorInfo = [], $code = 0, \Exception $previous = null)
+    {
+        $this->errorInfo = $errorInfo;
+        parent::__construct($message, $code, $previous);
+    }
+
+    /**
+     * @return string the user-friendly name of this exception
+     */
+    public function getName()
+    {
+        return 'Database Exception';
+    }
+
+    /**
+     * @return string readable representation of exception
+     */
+    public function __toString()
+    {
+        return parent::__toString() . PHP_EOL
+        . 'Additional Information:' . PHP_EOL . print_r($this->errorInfo, true);
+    }
+}