gistfile1.txt

<?php

class TestPage extends Page{
	private static $db = array(
		'Caption' => 'Text'
	);


	function getCMSFields(){
		$fields = parent::getCMSFields();

		$config = GridFieldConfig_RecordEditor::create();

		$fields->addFieldToTab('Root.Slider', 
			TextareaField::create('Caption')
		);

		return $fields;
	}

	public function getColour() {

	    // Try returning banners for this page
	    $Caption = $this->fieldByName('Caption');
	    if ( $Caption ) {
	        return $Caption;
	    }

	    // No colour for this page? Loop through the parents.
	    $parent = $this->Parent();
	    if ( $parent->ID ) {
	        return $parent->getColour();
	    }

	    // Still need a fallback position (handled by template)
	    return null;
	}
}


class TestPage_Controller extends Page_Controller {
	
}