From a7107dbd87aa92462a7348c1e73cd73da42cf4d8 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Mon, 12 Dec 2005 02:32:56 +0000
Subject: Modified rendering logic of hidden fields so that they are rendered
 at both the beginning and ending of the form.

---
 framework/Web/UI/TClientScriptManager.php | 14 +++++++++++---
 framework/Web/UI/TPage.php                |  4 +++-
 2 files changed, 14 insertions(+), 4 deletions(-)

(limited to 'framework/Web/UI')

diff --git a/framework/Web/UI/TClientScriptManager.php b/framework/Web/UI/TClientScriptManager.php
index 27029f56..cc5289c5 100644
--- a/framework/Web/UI/TClientScriptManager.php
+++ b/framework/Web/UI/TClientScriptManager.php
@@ -280,7 +280,9 @@ class TClientScriptManager extends TComponent
 
 	public function registerHiddenField($name,$value)
 	{
-		$this->_hiddenFields[$name]=$value;
+		// if the named hidden field exists and has a value null, it means the hidden field is rendered already
+		if(!isset($this->_hiddenFields[$name]) || $this->_hiddenFields[$name]!==null)
+			$this->_hiddenFields[$name]=$value;
 	}
 
 	public function registerOnSubmitStatement($key,$script)
@@ -365,8 +367,14 @@ class TClientScriptManager extends TComponent
 		$str='';
 		foreach($this->_hiddenFields as $name=>$value)
 		{
-			$value=THttpUtility::htmlEncode($value);
-			$str.="<input type=\"hidden\" name=\"$name\" id=\"$name\" value=\"$value\" />\n";
+			if($value!==null)
+			{
+				$value=THttpUtility::htmlEncode($value);
+				$str.="<input type=\"hidden\" name=\"$name\" id=\"$name\" value=\"$value\" />\n";
+				// set hidden field value to null to indicate this field is rendered
+				// Note, hidden field rendering is invoked twice (at the beginning and ending of TForm)
+				$this->_hiddenFields[$name]=null;
+			}
 		}
 		if($str!=='')
 			$writer->write("<div>\n".$str."</div>\n");
diff --git a/framework/Web/UI/TPage.php b/framework/Web/UI/TPage.php
index 2985e4d6..8d2c9686 100644
--- a/framework/Web/UI/TPage.php
+++ b/framework/Web/UI/TPage.php
@@ -694,7 +694,9 @@ class TPage extends TTemplateControl
 			throw new TInvalidConfigurationException('page_singleform_required');
 		$this->_formRendered=true;
 		$this->_inFormRender=true;
-		$this->getClientScript()->renderBeginScripts($writer);
+		$cs=$this->getClientScript();
+		$cs->renderHiddenFields($writer);
+		$cs->renderBeginScripts($writer);
 	}
 
 	/**
-- 
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