silverstripe-framework/forms/EditableRadioOption.php

<?php
	/**
	 * EditableDropdownOption
	 * Represents a single entry in an EditableRadioField
   */
  
  class EditableRadioOption extends DataObject {
  	
  	protected $readonly;
  	
  	function ReadonlyOption() {
  		$this->readonly = true;
  		return $this->EditSegment();
  	}
  	
  	function isReadonly() {
  		return $this->readonly;
  	}
  	
  	static $default_sort = "Sort";
	
	// add required here?
	static $db = array(
		"Name" => "Varchar",
		"Title" => "Varchar",
		"Default" => "Boolean",
           "Value" => "Varchar",
		"Sort" => "Int"
	);
	static $has_one = array(
		"Parent" => "EditableRadioField",
	);
	
	static $singular_name = 'Radio option';
	static $plural_name = 'Radio options';

	function EditSegment() {
		return $this->renderWith('EditableFormFieldOption');
	}

	function TitleField() {
		return new TextField( "Fields[{$this->ParentID}][{$this->ID}][Title]", null, $this->Title );
	}

	function Name() {
		return "Fields[{$this->ParentID}][{$this->ID}]";
	}

	function populateFromPostData( $data ) {
		$this->Title = $data['Title'];
		$this->Sort = $data['Sort'];
		$this->write();
	}
  	
  	function Option() {
  		// return new radio field
  		/*$title = Convert::raw2att( $this->Title );
  		
  		$default = "";
  		
  		if( $this->getField('Default') )
  			$default = '+';
  		else
  			$default = '-';
  		 
  		//Debug::show($this);
  		return '<input type="text" name="Fields['.$this->ParentID.']['.$this->ID.'][Title]" value="'.$default.$title.'" />';*/
  		
  		return $this->EditSegment();
  	}
  	
  	function DefaultSelect() {
  		$disabled = ($this->readonly) ? " disabled=\"disabled\"" : '';
  			
  		if($this->Parent()->getField('Default') == $this->ID)
  			$default = " checked=\"checked\"";
  		
  		return "<input class=\"radio\" type=\"radio\" name=\"Fields[{$this->ParentID}][Default]\" value=\"{$this->ID}\"".$disabled.$default." />";
  	}
  }
?>