From 1058f045b01b7db8d44ba1c044d68a891487dd7e Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Wed, 10 Sep 2014 22:54:17 -0400
Subject: [PATCH] TDB2

- Added ::has methods to determine whether a UUID is known.
---
 src/TDB2.cpp | 25 ++++++++++++++++++++++---
 src/TDB2.h   |  2 ++
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/src/TDB2.cpp b/src/TDB2.cpp
index c957e7b72..a1a76e61b 100644
--- a/src/TDB2.cpp
+++ b/src/TDB2.cpp
@@ -134,6 +134,20 @@ bool TF2::get (const std::string& uuid, Task& task)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool TF2::has (const std::string& uuid)
+{
+  if (! _loaded_tasks)
+    load_tasks ();
+
+  std::vector <Task>::iterator i;
+  for (i = _tasks.begin (); i != _tasks.end (); ++i)
+    if (i->get ("uuid") == uuid)
+      return true;
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 void TF2::add_task (Task& task)
 {
@@ -589,9 +603,6 @@ void TDB2::modify (Task& task, bool add_to_backlog /* = true */)
   // Ensure the task is consistent, and provide defaults if necessary.
   task.validate (false);
 
-  // All modified tasks are timestamped.
-  task.setModified ();
-
   // Find task, overwrite it.
   Task original;
   get (task.get ("uuid"), original);
@@ -1287,6 +1298,14 @@ bool TDB2::get (const std::string& uuid, Task& task)
          completed.get (uuid, task);
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// Locate task by UUID, wherever it is.
+bool TDB2::has (const std::string& uuid)
+{
+  return pending.has (uuid) ||
+         completed.has (uuid);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 const std::vector <Task> TDB2::siblings (Task& task)
 {
diff --git a/src/TDB2.h b/src/TDB2.h
index 3071fab72..20ead02f7 100644
--- a/src/TDB2.h
+++ b/src/TDB2.h
@@ -49,6 +49,7 @@ public:
 
   bool get (int, Task&);
   bool get (const std::string&, Task&);
+  bool has (const std::string&);
 
   void add_task (Task&);
   bool modify_task (const Task&);
@@ -110,6 +111,7 @@ public:
   const std::vector <Task> all_tasks ();
   bool get (int, Task&);
   bool get (const std::string&, Task&);
+  bool has (const std::string&);
   const std::vector <Task> siblings (Task&);
   const std::vector <Task> children (Task&);