How to use the Zend_Log instance that was created using the Zend_Application_Resource_Log in a model class

Our Zend_Log is initialized by only adding the following lines to application.ini

resources.log.stream.writerName = "Stream"
resources.log.stream.writerParams.mode = "a"

So Zend_Application_Resource_Log will create the instance for us.

We are already able to access this instance in controllers via the following:

public function getLog()
{
    $bootstrap = $this->getInvokeArg('bootstrap');

    //if (is_null($bootstrap)) return false;

    if (!$bootstrap->hasPluginResource('Log')) {
        return false;
    }
    $log = $bootstrap->getResource('Log');
    return $log;
}   

So far, so good.

Now we want to use the same log instance in model classes, where we can not acce开发者_JAVA百科ss the bootstrap.

Our first idea was to register the very same Log instance in Zend_Registry to be able to use Zend_Registry::get('Zend_Log') everywhere we want:

in our Bootstrap class:

protected function _initLog() {      
    if (!$this->hasPluginResource('Log')) {
        throw new Zend_Exception('Log not enabled');
    }

$log = $this->getResource('Log');

    assert( $log != null);

    Zend_Registry::set('Zend_Log', $log);
}

Unfortunately this assertion fails ==> $log IS NULL --- but why??

It is clear that we could just initialize the Zend_Log manually during bootstrapping without using the automatism of Zend_Application_Resource_Log, so this kind of answers will not be accepted.

This is the final solution. We basically shall not call the function _initLog()

Big thanks to ArneRie!

// Do not call this function _initLog() ! 
protected function _initRegisterLogger() {
    $this->bootstrap('Log');

    if (!$this->hasPluginResource('Log')) {
        throw new Zend_Exception('Log not enabled in config.ini');
    }

    $logger = $this->getResource('Log');
    assert($logger != null);
    Zend_Registry::set('Zend_Log', $logger);
}

Possible it is not bootstraped at this time, try:

    try {
            $this->bootstrap('log'); // bootstrap log
            $logger = $this->getResource('log');
        } catch (Zend_Application_Bootstrap_Exception $e) {
            $logger = new Zend_Log();
            $writer = new Zend_Log_Writer_Null();
            $logger->addWriter($writer);
        }
        $registry = Zend_Registry::set('logger', $logger);