Blank UID = friend

Signed-off-by: Denis Roy <denis.roy@eclipse.org>
diff --git a/web-api/friends_decorator.php b/web-api/friends_decorator.php
index 9c69596..fe2b397 100644
--- a/web-api/friends_decorator.php
+++ b/web-api/friends_decorator.php
@@ -30,14 +30,15 @@
 
   $ldap = new LDAPConnection();
   $uid = $ldap->getUIDFromMail($id);
-
-  # Can't use Friends class for this as efficiently
-  $sql = "SELECT COUNT(1) AS RecordCount FROM friends where uid = " . $App->returnQuotedString($uid) . " and is_benefit = 1"; 
-  $result = $App->eclipse_sql($sql);
-  if($myrow = mysql_fetch_array($result)) {
-    if ($myrow["RecordCount"] > 0) {
-      $file_name = "../images/friend-on.png";
-    }
+  
+  if($uid !== "") {
+	  $sql = "SELECT COUNT(1) AS RecordCount FROM friends where uid = " . $App->returnQuotedString($uid) . " and is_benefit = 1"; 
+	  $result = $App->eclipse_sql($sql);
+	  if($myrow = mysql_fetch_array($result)) {
+	    if ($myrow["RecordCount"] > 0) {
+	      $file_name = "../images/friend-on.png";
+	    }
+	  }
   }
 }