<?php
class CustomFooter extends DataExtension {

static $db = array(
    'FooterContent' => 'HTMLText',
);

public static $has_one = array(
"Logo"=>"Image",
"BGImage"=>"Background Image"
);

public function getCMSFields() {
$this->extend('updateCMSFields', $fields);
return $fields;
}



public function updateCMSFields(FieldList $fields) {
$fields->addFieldToTab('Root.Footer', new HTMLEditorField('FooterContent', 'Footer Content'));
$fields->addFieldToTab('Root.Main', new UploadField('Logo','Company Logo'));
$fields->addFieldToTab("Root.Main", new UploadField('BGImage','Background image'));
    }
}