From 7cadb4b21b90864b4151481da9aba244d7083788 Mon Sep 17 00:00:00 2001
From: Tim Almdal <tnalmdal@shaw.ca>
Date: Tue, 3 Mar 2009 05:59:38 +0000
Subject: Refactored the batch Api: 1) created a small batch helper class:
 Starting a batch call batch::operation(name, item). In the case of adding
 photos name = add and item is the parent of the new items. When the operation
 is finished the batch::end_operation(name) is called. operation and
 end_operation events are called.  Handlers (i.e. item_created) can call
 batch::in_progress(name) to determine if a batch is being processed.

---
 core/helpers/batch.php | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 core/helpers/batch.php

(limited to 'core/helpers/batch.php')

diff --git a/core/helpers/batch.php b/core/helpers/batch.php
new file mode 100644
index 00000000..4411b1b0
--- /dev/null
+++ b/core/helpers/batch.php
@@ -0,0 +1,40 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2008 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 batch_Core {
+  static function operation($name, $item) {
+    if (self::in_progress($name) === false) {
+      Session::instance()->set("operation_$name", "1");
+      module::event("operation", $name, $item);
+    }
+  }
+
+  static function end_operation($name) {
+    if (self::in_progress($name) === true) {
+      module::event("end_operation", $name);
+      Session::instance()->set("operation_$name", null);
+    }
+  }
+
+  static function in_progress($name) {
+    $value = Session::instance()->get("operation_$name", null);
+    return !empty($value);
+  }
+}
-- 
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