Faciliter la maintenance d’une application Zend en combinant Zend_Log et ErrorController

SetEnv APPLICATION_ENV development
...

defined('APPLICATION_ENV') || define('APPLICATION_ENV',
    (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV') : 'production'));

[production]
...
logging.enabled = 1
logging.level = 3
logging.filename = /tmp/exploit.log
[development : production]
...
logging.level = 7

EMERG   = 0;  // Emergency: system is unusable
ALERT   = 1;  // Alert: action must be taken immediately
CRIT    = 2;  // Critical: critical conditions
ERR     = 3;  // Error: error conditions
WARN    = 4;  // Warning: warning conditions
NOTICE  = 5;  // Notice: normal but significant condition
INFO    = 6;  // Informational: informational messages
DEBUG   = 7;  // Debug: debug messages

    protected function _initLogging()
    {
        $logger = new Zend_Log();
        // récupérer et filtrer sur le niveau de log
        $optionLevel = (int) $this->_options["logging"]["level"];
        $filter = new Zend_Log_Filter_Priority($optionLevel);
        $logger->addFilter($filter);
        // ajouter un rédacteur qui écrit dans le fichier défini
        $optionPath = $this->_options["logging"]["filename"];
        $writer = new Zend_Log_Writer_Stream($optionPath);
        $logger->addWriter($writer);
        Zend_Registry::set("logger", $logger);
    }

    public function errorAction()
    {
        $this->_helper->layout->setLayout('layouts/site');
        $errors = $this->_getParam('error_handler');
        switch ($errors->type) { 
            case Zend_Controller_Plugin_ErrorHandler::EXCEPTION_NO_CONTROLLER:
            case Zend_Controller_Plugin_ErrorHandler::EXCEPTION_NO_ACTION:
                // 404 error -- controller or action not found
                $this->getResponse()->setHttpResponseCode(404);
                $this->view->message = 'Page not found';
                break;
            default:
                // application error 
                $this->getResponse()->setHttpResponseCode(500);
                $this->view->message = 'Application error';
                // logging
                $logger = Zend_Registry::get("logger");
                // logger le type d'exception et sa trace
                $logger->err($errors->exception->getMessage());
                $logger->err($errors->exception->getTraceAsString());
                // rediriger la sortie var_dump dans le fichier de log
                ob_start();
                var_export($errors->request->getParams());
                $formatedParams = ob_get_contents();
                ob_end_clean();
                $logger->err($formatedParams);
                break;
        }
        $this->view->exception = $errors->exception;
        $this->view->request   = $errors->request;
    }

    public function indexAction()
    {
        // ...    
        throw new Exception('Division by zero.'); 
    }

2009-12-03T22:37:38+01:00 ERR (3): Division by zero.
2009-12-03T22:37:38+01:00 ERR (3): #0 /usr/share/php/Zend/Controller/Action.php(513): IndexController->indexAction()
#1 /usr/share/php/Zend/Controller/Dispatcher/Standard.php(289): Zend_Controller_Action->dispatch('indexAction')
#2 /usr/share/php/Zend/Controller/Front.php(946): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#3 /usr/share/php/Zend/Application/Bootstrap/Bootstrap.php(77): Zend_Controller_Front->dispatch()
#4 /usr/share/php/Zend/Application.php(358): Zend_Application_Bootstrap_Bootstrap->run()
#5 /var/www/monprojet/public/index.php(26): Zend_Application->run()
#6 {main}
2009-12-03T22:37:38+01:00 ERR (3): array (
  'controller' => 'index',
  'action' => 'index',
  'module' => 'default',
)