Internal Server Error after adding CMS fields in php file

Question

I have created Homepage.ss for the template and Homepage.php for the page type and after adding some codes to add a field in the php file, i am getting an internal server error message that pops up in a small window at the top right corner of the page and i also couldn’t get to the edit mode nor preview mode of the admin page.

Already flushed the cache and run dev/build also but doesnt work.

Below is the screenshot of admin when going into the Homepage

Answer 1

i am getting an internal server error message that pops up in a small window at the top right corner of the page

First of all, when you get a system error you will usually be able to do some basic debugging to work out what the actual problem is. This can involve setting the SS_ENVIRONMENT_TYPE .env var to "dev" so that exception traces are printed (either directly to the screen or in your network requests browser monitor for AJAX requests).

Once you know what the problem is you can work out how to fix it.

---

Your problem is that you aren't handling any of the class namespaces in your code. Page and PageController exist in the global namespace, but everything else is namespaced. Try this:

<?php

use SilverStripe\Forms\HTMLEditor\HTMLEditorField;

class Homepage extends Page
{
    private static $db = [
        'BottomContent' => 'HTMLText',
    ];

    public function getCMSFields()
    {
        $fields = parent::getCMSFields();
        $fields->addFieldToTab('Root.Main', HTMLEditorField::create('BottomContent', 'Bottom Content'));
        return $fields;
    }
}