Fatal error: Class 'CRM_Core_Resources' not found in

Question

 if ($formName == 'CRM_Contribute_Form_Contribution_Confirm' && $form->_id == 1) {


   CRM_Core_Resources::singleton()->addScriptFile(drupal_get_path('module','custom_water') .'/',
     'custom_water.js');

}

When I use the above code as mentioned in the link https://wiki.civicrm.org/confluence/display/CRMDOC43/Resource+Reference#ResourceReference-Introduction

Add a Javascript file PHP CRM_Core_Resources::singleton()->addScriptFile('com.example.foo', 'bar.js');

I get an error : Fatal error: Class 'CRM_Core_Resources' not found in

I am using drupal 7 with CiviCRM

Answer 1

if it is on drupal module add civicrm_initialize(); method above that line