silverstripe-framework/Forms/CheckboxField_Readonly.php

<?php

namespace SilverStripe\Forms;

/**
 * Readonly version of a checkbox field - "Yes" or "No".
 */
class CheckboxField_Readonly extends ReadonlyField
{

	public function performReadonlyTransformation()
	{
		return clone $this;
	}

	public function Value()
	{
		return $this->value ?
			_t('CheckboxField.YESANSWER', 'Yes') :
			_t('CheckboxField.NOANSWER', 'No');
	}

	public function getValueCast()
	{
		return 'Text';
	}

}