From 10f5fd22caedf03c257f1e23ea4bf4ee0f9a57c6 Mon Sep 17 00:00:00 2001
From: rWatcher <rwatcher@australia.edu>
Date: Sat, 25 Jul 2009 00:34:05 -0400
Subject: [PATCH] Require Tags module.

---
 modules/tagsmap/helpers/tagsmap_event.php     | 32 +++++++++++++++++++
 modules/tagsmap/helpers/tagsmap_installer.php |  4 +++
 2 files changed, 36 insertions(+)
 create mode 100644 modules/tagsmap/helpers/tagsmap_event.php

diff --git a/modules/tagsmap/helpers/tagsmap_event.php b/modules/tagsmap/helpers/tagsmap_event.php
new file mode 100644
index 00000000..c752993b
--- /dev/null
+++ b/modules/tagsmap/helpers/tagsmap_event.php
@@ -0,0 +1,32 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2009 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class tagsmap_event_Core {
+  static function module_change($changes) {
+    if (!module::is_active("tag") || in_array("tag", $changes->deactivate)) {
+      site_status::warning(
+        t("The TagsMap module requires the Tags module.  " .
+          "<a href=\"%url\">Activate the Tags module now</a>",
+          array("url" => url::site("admin/modules"))),
+        "tagsmap_needs_tag");
+    } else {
+      site_status::clear("tagsmap_needs_tag");
+    }
+  }
+}
\ No newline at end of file
diff --git a/modules/tagsmap/helpers/tagsmap_installer.php b/modules/tagsmap/helpers/tagsmap_installer.php
index f984f7c9..8a46def5 100644
--- a/modules/tagsmap/helpers/tagsmap_installer.php
+++ b/modules/tagsmap/helpers/tagsmap_installer.php
@@ -34,6 +34,10 @@ class tagsmap_installer {
     module::set_version("tagsmap", 1);
   }
 
+  static function deactivate() {
+    site_status::clear("tagsmap_needs_tag");
+  }
+
   static function uninstall() {
     $db = Database::instance();
     $db->query("DROP TABLE IF EXISTS {tags_gpses};");