From f6aba9147dabf9308e191afda5e1c533eeb52203 Mon Sep 17 00:00:00 2001
From: Andrew O'Neil <andy@andyofniall.net>
Date: Wed, 22 Oct 2008 03:42:57 +0000
Subject: [PATCH] Add ability to disable 'None' option and to choose the title
 field in TypeDropdown

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.2@64635 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 forms/TypeDropdown.php | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/forms/TypeDropdown.php b/forms/TypeDropdown.php
index 630938576..edecd5cbc 100755
--- a/forms/TypeDropdown.php
+++ b/forms/TypeDropdown.php
@@ -11,15 +11,23 @@
  * @subpackage fields-relational
  */
 class TypeDropdown extends DropdownField {
-	
-	function __construct( $name, $title, $className, $value = null, $form = null ) {
+	/** 
+	 * Create a type dropdown field. 
+	 * @param string $name The field name 
+	 * @param string $title The field title 
+	 * @param string $className The class name of the related class 
+	 * @param int $value The current value 
+	 * @param Form $form The parent form 
+	 * @param boolean $includeNone Include 'None' in the dropdown 
+	 * @param string $titleField The field on the object to use as the title in the dropdown 
+	 */
+	 function __construct($name, $title, $className, $value = null, $form = null, $includeNone = true, $titleField = 'Title') {
+		$options = DataObject::get($className);
 		
-		$options = DataObject::get( $className );
-		
-		$optionArray = array( '0' => _t('TypeDropdown.NONE', 'None') );
+		$optionArray = $includeNone ? array('0' => _t('TypeDropdown.NONE', 'None')) : array();
 		
 		if($options) foreach($options as $option) {
-			$optionArray[$option->ID] = $option->Title;
+			$optionArray[$option->ID] = $option->$titleField;
 		}
 			
 		parent::__construct( $name, $title, $optionArray, $value, $form );