Re: Getting Error for CakePHP 2.0 ComboSession Example From Online Book

Not sure if its the same problem, havent read through all your explanation...

However I had same error:

Error: Table sessions for model Session was not found in datasource default.

My solution was adding following line to my /app/Controller/AppController.php:

  public $components = array('Session');

Den fredag den 6. juli 2012 18.22.23 UTC+2 skrev harrije:

I posted this problem on stackoverflow  because it has lots of cakePHP discussion and I usually get an answer in a few hours, but I've gotten no quick answers on the issue below. Read on...

I need to implement a custom session that is very similar to the ComboSession example used in the cakePHP online book at http://book.cakephp.org/2.0/en/development/sessions.html . After making the changes shown in the book, I get the following error: 

Missing Database Table
Error: Table sessions for model Session was not found in datasource default.

Stack Trace
CORE\Cake\Model\Model.php line 3180 ? Model->setSource(string)
CORE\Cake\Model\Model.php line 2631 ? Model->getDataSource() 
CORE\Cake\Model\Datasource\Session\DatabaseSession.php line 95 ? Model->find(string, array) 
APP\Model\Datasource\Session\ComboSession.php line 18 ? DatabaseSession->read(string) 
[internal function] ? ComboSession->read(string) 
CORE\Cake\Model\Datasource\CakeSession.php line 615 ? session_start() 
CORE\Cake\Model\Datasource\CakeSession.php line 189 ? CakeSession::_startSession() 
CORE\Cake\Model\Datasource\CakeSession.php line 399 ? CakeSession::start() 
CORE\Cake\Controller\Component\SessionComponent.php line 56 ? CakeSession::write(string, integer) 
APP\Controller\ProductsController.php line 12 ? SessionComponent->write(string, integer) 
[internal function] ? ProductsController->index() 
CORE\Cake\Controller\Controller.php line 485 ? ReflectionMethod->invokeArgs(ProductsController, array) 
CORE\Cake\Routing\Dispatcher.php line 186 ? Controller->invokeAction(CakeRequest) 
CORE\Cake\Routing\Dispatcher.php line 161 ? Dispatcher->_invoke(ProductsController, CakeRequest, CakeResponse) 
APP\webroot\index.php line 92 ? Dispatcher->dispatch(Ca keRequest, CakeResponse) 

CakePHP doesn't like the 'model' entry in the core.php changes that the book example says to do: 

Configure::write('Session', array(
    'defaults' => 'database',
    'handler' => array(
        'engine' => 'ComboSession',
        'model' => 'Session',
        'cache' => 'apc'
     )
));

The only way I could get ComboSession to work was to add a new default entry in lib/Cake/Model/Datasource/CakeSession.php in function _defaultConfig as: 

'combo' => array(
    'cookie' => 'CAKEPHP',
    'timeout' => 240,
    'ini' => array('session.use_trans_sid' => 0, 'url_rewriter.tags' => '', 'session.auto_start' => 0, 'session.use_cookies' => 1, 'session.cookie_path' => self::$path, 'session.save_handler' => 'user', 'session.serialize_handler' => 'php'),
    'handler' => array(
        'engine' => 'ComboSession',
        'model' => 'Session',
        'cache' => 'apc',
    )
)

The above combo default entry is the same as the database default entry, except that the engine is change to ComboSession and cache is also included.

After making the cake lib change, I was able to use the ComboSession after changing core.php to:

Configure::write('Session', array(
    'defaults' => 'combo',
));

I also tried using the DatabaseSession, which uses model Session, and it worked just fine with no error.

So why can't I get ComboSession working with the core.php changes described in the online book? Why does it work after making lib changes, instead of app only changes? I understand that app only changes are preferred and lib changes are to be avoided.

Please advise!

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