クラス yii\log\DbTarget

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            

                public function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

            

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

            

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        // read property, e.g. getName()
        return $this->$getter();
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name;
        }
    }
    if (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}

            

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name !== null;
        }
    }
    return false;
}

            

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        // set property
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        // on event: attach event handler
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        // as behavior: attach behavior
        $name = trim(substr($name, 3));
        $this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = $value;
            return;
        }
    }
    if (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}

            

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = null;
            return;
        }
    }
    throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}

            

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            

                public function behaviors()
{
    return [];
}

            

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canSetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public static function className()
{
    return get_called_class();
}

            

                public function collect($messages, $final)
{
    $this->messages = array_merge($this->messages, static::filterMessages($messages, $this->getLevels(), $this->categories, $this->except));
    $count = count($this->messages);
    if ($count > 0 && ($final || $this->exportInterval > 0 && $count >= $this->exportInterval)) {
        if (($context = $this->getContextMessage()) !== '') {
            $this->messages[] = [$context, Logger::LEVEL_INFO, 'application', YII_BEGIN_TIME, [], 0];
        }
        // set exportInterval to 0 to avoid triggering export again while exporting
        $oldExportInterval = $this->exportInterval;
        $this->exportInterval = 0;
        $this->export();
        $this->exportInterval = $oldExportInterval;
        $this->messages = [];
    }
}

            

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            

                public static function filterMessages($messages, $levels = 0, $categories = [], $except = [])
{
    foreach ($messages as $i => $message) {
        if ($levels && !($levels & $message[1])) {
            unset($messages[$i]);
            continue;
        }
        $matched = empty($categories);
        foreach ($categories as $category) {
            if ($message[2] === $category || !empty($category) && substr_compare($category, '*', -1, 1) === 0 && strpos($message[2], rtrim($category, '*')) === 0) {
                $matched = true;
                break;
            }
        }
        if ($matched) {
            foreach ($except as $category) {
                $prefix = rtrim($category, '*');
                if (($message[2] === $category || $prefix !== $category) && strpos($message[2], $prefix) === 0) {
                    $matched = false;
                    break;
                }
            }
        }
        if (!$matched) {
            unset($messages[$i]);
        }
    }
    return $messages;
}

            

                public function formatMessage($message)
{
    list($text, $level, $category, $timestamp) = $message;
    $level = Logger::getLevelName($level);
    if (!is_string($text)) {
        // exceptions may not be serializable if in the call stack somewhere is a Closure
        if ($text instanceof \Exception || $text instanceof \Throwable) {
            $text = (string) $text;
        } else {
            $text = VarDumper::export($text);
        }
    }
    $traces = [];
    if (isset($message[4])) {
        foreach ($message[4] as $trace) {
            $traces[] = "in {$trace['file']}:{$trace['line']}";
        }
    }
    $prefix = $this->getMessagePrefix($message);
    return $this->getTime($timestamp) . " {$prefix}[$level][$category] $text"
        . (empty($traces) ? '' : "\n    " . implode("\n    ", $traces));
}

            

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            

                protected function getContextMessage()
{
    $context = ArrayHelper::filter($GLOBALS, $this->logVars);
    foreach ($this->maskVars as $var) {
        if (ArrayHelper::getValue($context, $var) !== null) {
            ArrayHelper::setValue($context, $var, '***');
        }
    }
    $result = [];
    foreach ($context as $key => $value) {
        $result[] = "\${$key} = " . VarDumper::dumpAsString($value);
    }
    return implode("\n\n", $result);
}

            

                public function getEnabled()
{
    if (is_callable($this->_enabled)) {
        return call_user_func($this->_enabled, $this);
    }
    return $this->_enabled;
}

            

                public function getLevels()
{
    return $this->_levels;
}

            

                public function getMessagePrefix($message)
{
    if ($this->prefix !== null) {
        return call_user_func($this->prefix, $message);
    }
    if (Yii::$app === null) {
        return '';
    }
    $request = Yii::$app->getRequest();
    $ip = $request instanceof Request ? $request->getUserIP() : '-';
    /* @var $user \yii\web\User */
    $user = Yii::$app->has('user', true) ? Yii::$app->get('user') : null;
    if ($user && ($identity = $user->getIdentity(false))) {
        $userID = $identity->getId();
    } else {
        $userID = '-';
    }
    /* @var $session \yii\web\Session */
    $session = Yii::$app->has('session', true) ? Yii::$app->get('session') : null;
    $sessionID = $session && $session->getIsActive() ? $session->getId() : '-';
    return "[$ip][$userID][$sessionID]";
}

            

                protected function getTime($timestamp)
{
    $parts = explode('.', sprintf('%F', $timestamp));
    return date('Y-m-d H:i:s', $parts[0]) . ($this->microtime ? ('.' . $parts[1]) : '');
}

            

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    // plain event names
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    // wildcard event names
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            // remove empty wildcards to save future redundant regex checks:
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            

                public function setEnabled($value)
{
    $this->_enabled = $value;
}

            

                public function setLevels($levels)
{
    static $levelMap = [
        'error' => Logger::LEVEL_ERROR,
        'warning' => Logger::LEVEL_WARNING,
        'info' => Logger::LEVEL_INFO,
        'trace' => Logger::LEVEL_TRACE,
        'profile' => Logger::LEVEL_PROFILE,
    ];
    if (is_array($levels)) {
        $this->_levels = 0;
        foreach ($levels as $level) {
            if (isset($levelMap[$level])) {
                $this->_levels |= $levelMap[$level];
            } else {
                throw new InvalidConfigException("Unrecognized level: $level");
            }
        }
    } else {
        $bitmapValues = array_reduce($levelMap, function ($carry, $item) {
            return $carry | $item;
        });
        if (!($bitmapValues & $levels) && $levels !== 0) {
            throw new InvalidConfigException("Incorrect $levels value");
        }
        $this->_levels = $levels;
    }
}

            

                public function trigger($name, Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            // stop further handling if the event is handled
            if ($event->handled) {
                return;
            }
        }
    }
    // invoke class-level attached handlers
    Event::trigger($this, $name, $event);
}