BysinessDetails.php

<?php

class BusinessDetails extends DataExtension {

    private static $db = array(
        'BusinessName' => 'text',
        'BusinessAddress' => 'text',
        'BusinessLandPhone' => 'text',
        'BusinessMobilePhone' => 'text',
        'BusinessFax' => 'text',
        'BusinessEmail' => 'text',
        'BusinessID' => 'int',
    );
    private static $has_one = array(
        "logo_portrait" => "image",
        "logo_landscape" => "image",
        "brand_image" => "image",
    );

    public function updateCMSFields(FieldList $fields) {

        $newFields = array(
            TextField::Create('BusinessName')->setRightTitle('If different from Site Title'),
            TextField::Create('BusinessAddress'),
            TextField::Create('BusinessLandPhone'),
            TextField::Create('BusinessMobilePhone'),
            TextField::Create('BusinessFax'),
            EmailField::Create('BusinessEmail'),
            NumericField::create("BusinessID", 'Business ID (ABN/ACN)'),
        );
        $fields->addFieldsToTab("Root.BusinessDetails.GeneralDetails", $newFields);

        $newFields = array(
//            UploadField::Create("brand_image"),
//            UploadField::Create("logo_landscape"),
//            UploadField::Create("logo_portrait"),
            UploadField::Create("brand_image", "Brand Image"),
            UploadField::Create("logo_landscape", "Logo (Landscape)"),
            UploadField::Create("logo_portrait", "Logo (Portrait)"),
        );
        $fields->addFieldsToTab("Root.BusinessDetails.Images", $newFields);

    }

}