100 lines
3.4 KiB
PHP
100 lines
3.4 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\log;
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use Yii;
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use yii\base\InvalidConfigException;
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use yii\db\Connection;
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use yii\db\Exception;
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use yii\di\Instance;
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use yii\helpers\VarDumper;
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/**
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* DbTarget stores log messages in a database table.
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*
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* The database connection is specified by [[db]]. Database schema could be initialized by applying migration:
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*
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* ```
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* yii migrate --migrationPath=@yii/log/migrations/
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* ```
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*
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* If you don't want to use migration and need SQL instead, files for all databases are in migrations directory.
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*
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* You may change the name of the table used to store the data by setting [[logTable]].
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class DbTarget extends Target
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{
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/**
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* @var Connection|array|string the DB connection object or the application component ID of the DB connection.
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* After the DbTarget object is created, if you want to change this property, you should only assign it
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* with a DB connection object.
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* Starting from version 2.0.2, this can also be a configuration array for creating the object.
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*/
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public $db = 'db';
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/**
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* @var string name of the DB table to store cache content. Defaults to "log".
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*/
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public $logTable = '{{%log}}';
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/**
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* Initializes the DbTarget component.
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* This method will initialize the [[db]] property to make sure it refers to a valid DB connection.
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* @throws InvalidConfigException if [[db]] is invalid.
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*/
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public function init()
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{
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parent::init();
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$this->db = Instance::ensure($this->db, Connection::className());
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}
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/**
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* Stores log messages to DB.
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* Starting from version 2.0.14, this method throws LogRuntimeException in case the log can not be exported.
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* @throws Exception
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* @throws LogRuntimeException
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*/
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public function export()
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{
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if ($this->db->getTransaction()) {
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// create new database connection, if there is an open transaction
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// to ensure insert statement is not affected by a rollback
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$this->db = clone $this->db;
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}
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$tableName = $this->db->quoteTableName($this->logTable);
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$sql = "INSERT INTO $tableName ([[level]], [[category]], [[log_time]], [[prefix]], [[message]])
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VALUES (:level, :category, :log_time, :prefix, :message)";
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$command = $this->db->createCommand($sql);
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foreach ($this->messages as $message) {
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list($text, $level, $category, $timestamp) = $message;
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if (!is_string($text)) {
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// exceptions may not be serializable if in the call stack somewhere is a Closure
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if ($text instanceof \Throwable || $text instanceof \Exception) {
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$text = (string) $text;
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} else {
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$text = VarDumper::export($text);
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}
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}
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if ($command->bindValues([
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':level' => $level,
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':category' => $category,
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':log_time' => $timestamp,
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':prefix' => $this->getMessagePrefix($message),
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':message' => $text,
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])->execute() > 0) {
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continue;
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}
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throw new LogRuntimeException('Unable to export log through database!');
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}
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}
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}
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