From fdfe199f9b2b185ce95aa51a5d644be821d87d03 Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Wed, 16 Nov 2011 14:27:32 -0200
Subject: Optional uid parameter at muamba_check_availability()

---
 muamba.db.inc | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/muamba.db.inc b/muamba.db.inc
index f06e3be..1c1894e 100644
--- a/muamba.db.inc
+++ b/muamba.db.inc
@@ -169,10 +169,16 @@ function muamba_current_transactions($data, $uid = NULL) {
  * @param $data
  *   Item nid or node object.
  *
+ * @param $uid
+ *   Optional uid parameter to check if item is currently
+ *   available to the user.
+ *
  * @return
- *   TRUE if item is borrowed, FALSE otherwise.
+ *   TRUE if item is available, FALSE otherwise.
  */
-function muamba_check_availability($data) {
+function muamba_check_availability($data, $uid = NULL) {
+  global $user;
+
   if (is_object($data)) {
     $nid = (int) $data->nid;
   }
@@ -193,6 +199,9 @@ function muamba_check_availability($data) {
   if (empty($current)) {
     return TRUE;
   }
+  elseif ($uid !== NULL && $current['uid'] == $user->uid) {
+    return TRUE;
+  }
 
   return FALSE;
 }
-- 
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