If you need to show data within a gridfield including raw HTML...
<?php
class ObjectA extends DataObject {
static $db = array(
"Name" => "Varchar",
);
static $has_many = array(
"ObjectBs" => "ObjectB",
);
function getCMSFields(){
$fields = parent::getCMSFields();
if ($grid = $fields->dataFieldByName('ObjectBs')) {
$dataColumns = $grid->getConfig()->getComponentByType('GridFieldDataColumns');
$dataColumns->setFieldCasting(array('Name' => 'HTMLText->RAW'));
}
return $fields;
}
}
class ObjectB extends DataObject {
static $db = array(
"Name" => "HTMLText",
);
static $has_one = array(
"ObjectAs" => "ObjectA",
);
}