dbModel read resource does not implement Zend_Db_Adapter_Abstract admin January 10, 2017 Magento 280 Comments It is very simple just clear the cache /var/cache/folder Related Posts Disable compilation from command line admin October 11, 2016 Magento Compilation – Compile, Clear, Enable and Disable from Command Line If you have shell .. How to add checkbox field in Admin custom module form and populate the checkbox zendnwar June 16, 2015 $fieldset->addField(‘checkbox_name’, ‘checkbox’, array( ‘name& ..