From 0364e35e7d51d0cc31cccdc9c1067b277419ef27 Mon Sep 17 00:00:00 2001
From: "uwe.tews@googlemail.com" <uwe.tews@googlemail.com>
Date: Tue, 27 Mar 2012 17:07:32 +0000
Subject: [PATCH] - bugfix implement Smarty2's behaviour of variables assigned
 by reference in SmartyBC. {assign} will affect all references.   (issue 88)

---
 change_log.txt                                     | 2 ++
 libs/sysplugins/smarty_internal_compile_assign.php | 9 ++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/change_log.txt b/change_log.txt
index ec0b1115..26f76818 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -1,6 +1,8 @@
 ===== trunk  =====
 27.03.2012
 - bugfix prefilter did run multiple times on inline subtemplates compiled into several main templates (Forum Topic 21325)
+- bugfix implement Smarty2's behaviour of variables assigned by reference in SmartyBC. {assign} will affect all references.
+  (issue 88)
 
 21.03.2012
 - bugfix compileAllTemplates() and compileAllConfig() did not return the number of compiled files (Forum Topic 21286)
diff --git a/libs/sysplugins/smarty_internal_compile_assign.php b/libs/sysplugins/smarty_internal_compile_assign.php
index 40e46862..0ac3f68c 100644
--- a/libs/sysplugins/smarty_internal_compile_assign.php
+++ b/libs/sysplugins/smarty_internal_compile_assign.php
@@ -58,7 +58,14 @@ class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase {
         if (isset($parameter['smarty_internal_index'])) {
             $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];";
         } else {
-            $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);";
+            // implement Smarty2's behaviour of variables assigned by reference
+            if ($compiler->template->smarty instanceof SmartyBC) {
+                $output = "<?php if (isset(\$_smarty_tpl->tpl_vars[$_attr[var]])) {\$_smarty_tpl->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
+                $output .= "\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value = $_attr[value]; \$_smarty_tpl->tpl_vars[$_attr[var]]->nocache = $_nocache; \$_smarty_tpl->tpl_vars[$_attr[var]]->scope = $_scope;";
+                $output .= "\n} else \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);";
+            } else {
+                $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);";
+            }
         }
         if ($_scope == Smarty::SCOPE_PARENT) {
             $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";