From d11f8b5e9e49b10bf1c688426fbd9b32692877cc Mon Sep 17 00:00:00 2001
From: Bernhard Schussek <bschussek@gmail.com>
Date: Mon, 16 Jul 2012 16:44:31 +0200
Subject: [PATCH] [Form] Fixed passing of variables in the FormRenderer

---
 src/Symfony/Component/Form/FormRenderer.php | 32 +++++++++++++++++++--
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Component/Form/FormRenderer.php b/src/Symfony/Component/Form/FormRenderer.php
index 05c77d3aff64..ca85ff477f70 100644
--- a/src/Symfony/Component/Form/FormRenderer.php
+++ b/src/Symfony/Component/Form/FormRenderer.php
@@ -155,7 +155,19 @@ public function renderBlock($block, array $variables = array())
             throw new FormException(sprintf('No block "%s" found while rendering the form.', $block));
         }
 
-        $variables = array_replace_recursive($scopeVariables, $variables);
+        // Merge the passed with the existing attributes
+        if (isset($variables['attr']) && isset($scopeVariables['attr'])) {
+            $variables['attr'] = array_replace($scopeVariables['attr'], $variables['attr']);
+        }
+
+        // Merge the passed with the exist *label* attributes
+        if (isset($variables['label_attr']) && isset($scopeVariables['label_attr'])) {
+            $variables['label_attr'] = array_replace($scopeVariables['label_attr'], $variables['label_attr']);
+        }
+
+        // Do not use array_replace_recursive(), otherwise array variables
+        // cannot be overwritten
+        $variables = array_replace($scopeVariables, $variables);
 
         return $this->engine->renderBlock($view, $resource, $block, $variables);
     }
@@ -253,7 +265,7 @@ protected function renderSection(FormViewInterface $view, $section, array $varia
 
             // The default variable scope contains all view variables, merged with
             // the variables passed explicitely to the helper
-            $variables = array_replace_recursive($view->getVars(), $variables);
+            $scopeVariables = $view->getVars();
         } else {
             // RECURSIVE CALL
             // If a block recursively calls renderSection() again, resume rendering
@@ -262,7 +274,7 @@ protected function renderSection(FormViewInterface $view, $section, array $varia
             $hierarchyLevel = $this->hierarchyLevelMap[$mapKey] - 1;
 
             // Reuse the current scope and merge it with the explicitely passed variables
-            $variables = array_replace_recursive($this->variableMap[$mapKey], $variables);
+            $scopeVariables = $this->variableMap[$mapKey];
         }
 
         // Load the resource where this block can be found
@@ -285,6 +297,20 @@ protected function renderSection(FormViewInterface $view, $section, array $varia
             ));
         }
 
+        // Merge the passed with the existing attributes
+        if (isset($variables['attr']) && isset($scopeVariables['attr'])) {
+            $variables['attr'] = array_replace($scopeVariables['attr'], $variables['attr']);
+        }
+
+        // Merge the passed with the exist *label* attributes
+        if (isset($variables['label_attr']) && isset($scopeVariables['label_attr'])) {
+            $variables['label_attr'] = array_replace($scopeVariables['label_attr'], $variables['label_attr']);
+        }
+
+        // Do not use array_replace_recursive(), otherwise array variables
+        // cannot be overwritten
+        $variables = array_replace($scopeVariables, $variables);
+
         // In order to make recursive calls possible, we need to store the block hierarchy,
         // the current level of the hierarchy and the variables so that this method can
         // resume rendering one level higher of the hierarchy when it is called recursively.