Solutions to errors

This pages provides an overview of some common SilverStripe errors that have cryptic error messages. Hopefully these examples will help you out.

[User Warning] ModelAsController::getNestedController() returned bad object type 'Examples'

GET /examples/?flush=1
Line 70 in \sapphire\core\control\ModelAsController.php

Solution:

This error occurs if no controller is defined for a class based on Page / SiteTree. Define controller at bottom of your Example class as:

<?php
class Examples extends Page {
// Your Examples class
}

class Examples_Controller extends Page_Controller {

}

Relation DataObjectManagers (DOM module)

Issues with HasOneDataObjectManager HasManyDataObjectManager ManyManyDataObjectManager

Error: [User Warning] Can't figure out the data class of

       $manager = new ManyManyDataObjectManager($this->owner, "Expertise", "ExpertsHolder", array('Title' => 'Title'), "getCMSFields_forPopup", '', 'Title ASC');
        $manager->setPermissions(array(''));
        $manager->setPluralTitle('Expertise areas');
        $fields->addFieldToTab("Root.Expertise", $manager);