Commerce Bug error

commerce_bug_error

Magento 1.4.1.1
URL: .../catalogsearch/result/?q=test

Fatal error: Call to undefined method Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Flat::getEntityType() in /var/www/html/products/app/code/local/[redacted]/Commercebug/Model/Collectorcollections.php on line 36

This error in a known issue with Commerce Bug and the "Flat" catalog that will be fixed in a future release. In the meantime, you can manually patch the error yourself to get a working extension

In the following file

Commercebug/Collectorcollections.php

replace the _getModelNameFromModel method with the following.

protected function _getModelNameFromModel($model)
{
    if(method_exists($model, 'getModelName'))
    {
        return $model->getModelName();
    }
    if(is_object($model->getResource()) && method_exists($model->getResource(), 'getEntityType'))
    {
        return $model->getResource()->getEntityType()->getEntityModel();
    }
    if(is_object($model->getResource()))
    {
        return 'Method getEntityType not found on ' . get_class($model->getResource());
    }        
    return 'UNKNOWN';
}

that should take care of your problems.

If any other problems crop up or need help applying the above patch please don't hesitate to reply.

For the curious, this error came about because there's no official interface to Magento collections, and the collections of flat items don't implement either a getModelName method or a getResource method, which makes things explode.