From ec9f5f1995209ff9f1f19968c4f642f5cfed532a Mon Sep 17 00:00:00 2001
From: crynobone <crynobone@gmail.com>
Date: Mon, 7 May 2012 20:43:40 +0800
Subject: [PATCH] Add support for Form::select with optgroup, solved #526

---
 laravel/form.php | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/laravel/form.php b/laravel/form.php
index a768f503..619043ef 100644
--- a/laravel/form.php
+++ b/laravel/form.php
@@ -397,12 +397,39 @@ public static function select($name, $options = array(), $selected = null, $attr
 
 		foreach ($options as $value => $display)
 		{
-			$html[] = static::option($value, $display, $selected);
+			if (is_array($display)) 
+			{
+				$html[] = static::optgroup($display, $value, $selected);
+			}
+			else
+			{
+				$html[] = static::option($value, $display, $selected);
+			}
 		}
 
 		return '<select'.HTML::attributes($attributes).'>'.implode('', $html).'</select>';
 	}
 
+	/**
+	 * Create a HTML select element optgroup.
+	 *
+	 * @param  array   $options
+	 * @param  string  $label
+	 * @param  string  $selected
+	 * @return string
+	 */
+	protected static function optgroup($options, $label, $selected)
+	{
+		$html = array();
+
+		foreach ($options as $value => $display)
+		{
+			$html[] = static::option($value, $display, $selected);
+		}
+
+		return '<optgroup label="'.HTML::entities($label).'">'.implode('', $html).'</option>';
+	}
+
 	/**
 	 * Create a HTML select element option.
 	 *