From 363268ab990454feec7d88f148716af04d42014c Mon Sep 17 00:00:00 2001
From: plegall <plg@piwigo.org>
Date: Mon, 22 Mar 2010 15:03:43 +0000
Subject: ture 1514: improvement, impossible to activate a theme is a parent is
 missing (a parent includes grand father and his own father, and his own
 father, and so on... until the root theme is "default" or has no parent
 declared)

git-svn-id: http://piwigo.org/svn/trunk@5259 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 admin/include/themes.class.php | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'admin/include')

diff --git a/admin/include/themes.class.php b/admin/include/themes.class.php
index ad32b6f7f..82622d878 100644
--- a/admin/include/themes.class.php
+++ b/admin/include/themes.class.php
@@ -80,6 +80,20 @@ class themes
           // the theme is already active
           break;
         }
+
+        $missing_parent = $this->missing_parent_theme($theme_id);
+        if (isset($missing_parent))
+        {
+          array_push(
+            $errors, 
+            sprintf(
+              l10n('Impossible to activate this theme, the parent theme is missing: %s'),
+              $missing_parent
+              )
+            );
+          
+          break;
+        }
         
         $query = "
 INSERT INTO ".THEMES_TABLE."
@@ -168,6 +182,28 @@ DELETE
     return $errors;
   }
 
+  function missing_parent_theme($theme_id)
+  {
+    if (!isset($this->fs_themes[$theme_id]['parent']))
+    {
+      return null;
+    }
+    
+    $parent = $this->fs_themes[$theme_id]['parent'];
+      
+    if ('default' == $parent)
+    {
+      return null;
+    }
+      
+    if (!isset($this->fs_themes[$parent]))
+    {
+      return $parent;
+    }
+
+    return $this->missing_parent_theme($parent);
+  }
+
   function get_children_themes($theme_id)
   {
     $children = array();
-- 
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