call a custom observer in fuelphp - orm

Question

i create a custom Observer :
class Observer_Test extends Orm\Observer
{
public function after_insert(Orm\Model $model)
{
\Log::info('Succesfully created new object of class '.get_class($model));
}
}
i put this code in app/classes/observer/test.php
and i called from my model in app/classes/model/
this my observer
protected static $_observers = array(
'Observer\Observer_Test' => array(
'events' => array('after_insert'),
),
);
and i got an error message like this
ErrorException [ Error ]: Uncaught exception 'Fuel\Core\FuelException'
with message 'Unable to create or write to the log file. Please check
the permissions on
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/app/logs/' in
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/classes/log.php:77
Stack trace: #0 [internal function]: Fuel\Core\Log::_init() #1
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/classes/autoloader.php(364):
call_user_func('Log::_init') #2
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/classes/autoloader.php(247):
Fuel\Core\Autoloader::init_class('Log') #3 [internal function]:
Fuel\Core\Autoloader::load('Log') #4
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/base.php(91):
spl_autoload_call('Log') #5
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/classes/error.php(117):
logger(400, 'Error - Observe...') #6
/Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER/fuel/core/bootstrap.php(71):
Fuel\Core\Error::exception_handler(Object(UnexpectedValueException))
i think i wrong when i called or put the observer, what is the best practices for creating an observer?

Answer 1

as I see, the error says that there is not enough permission to write to that directory, and observer itself is working. to make sure, just replace Log::() call with something like die('WORKS!'); instead.
To fix the problem, so the logs would start writing, try to fix the directory permissions. I'm not sure how MacOSX handles this but this might heenter code herelp you:
cd /Applications/XAMPP/xamppfiles/htdocs/MPOSSERVER
find . -type f -exec chmod 666 {} \;
find . -type d -exec chmod 777 {} \;
1st command will cd to you web project
2nd will make all files in that directory to chmod to 666 (read/write by everyone)
3rd command will make read/write/execute by everyone
Hope that helps
Good luck :)