Enhancement - undo

- Removed obsolete undelete command.
- Removed obsolete undo command.
- Implemented new undo command as a call to the stubbed TDB::undo call.

src/command.cpp

@@ -206,107 +206,9 @@ std::string handleTags ()
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// If a task is deleted, but is still in the pending file, then it may be
-// undeleted simply by changing it's status.
-std::string handleUndelete ()
+void handleUndo ()
 {
-  std::stringstream out;
-
-  std::vector <Task> tasks;
-  context.tdb.lock (context.config.get ("locking", true));
-  context.tdb.loadPending (tasks, context.filter);
-
-  // Filter sequence.
-  context.filter.applySequence (tasks, context.sequence);
-
-  foreach (task, tasks)
-  {
-    if (task->getStatus () == Task::deleted)
-    {
-      if (task->has ("recur"))
-        out << "Task does not support 'undelete' for recurring tasks.\n";
-
-      task->setStatus (Task::pending);
-      task->remove ("end");
-      context.tdb.update (*task);
-
-      out << "Task "
-          << task->id
-          << " '"
-          << task->get ("description")
-          << "' successfully undeleted.\n";
-    }
-    else
-    {
-      out << "Task "
-          << task->id
-          << " '"
-          << task->get ("description")
-          << "' is not deleted - therefore cannot be undeleted.\n";
-    }
-  }
-
-  context.tdb.commit ();
-  context.tdb.unlock ();
-
-  out << "\n"
-      << "Please note that tasks can only be reliably undeleted if the undelete "
-      << "command is run immediately after the errant delete command."
-      << std::endl;
-
-  return out.str ();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// If a task is done, but is still in the pending file, then it may be undone
-// simply by changing it's status.
-std::string handleUndo ()
-{
-  std::stringstream out;
-
-  std::vector <Task> tasks;
-  context.tdb.lock (context.config.get ("locking", true));
-  context.tdb.loadPending (tasks, context.filter);
-
-  // Filter sequence.
-  context.filter.applySequence (tasks, context.sequence);
-
-  foreach (task, tasks)
-  {
-    if (task->getStatus () == Task::completed)
-    {
-      if (task->has ("recur"))
-        out << "Task does not support 'undo' for recurring tasks.\n";
-
-      task->setStatus (Task::pending);
-      task->remove ("end");
-      context.tdb.update (*task);
-
-      out << "Task "
-          << task->id
-          << " '"
-          << task->get ("description")
-          << "' successfully undone.\n";
-    }
-    else
-    {
-      out << "Task "
-          << task->id
-          << " '"
-          << task->get ("description")
-          << "' is not completed - therefore cannot be undone.\n";
-    }
-  }
-
-  context.tdb.commit ();
-  context.tdb.unlock ();
-
-  out << "\n"
-      << "Please note that tasks can only be reliably undone if the undo "
-      << "command is run immediately after the errant done command."
-      << std::endl;
-
-  return out.str ();
+  context.tdb.undo ();
 }
 
 ////////////////////////////////////////////////////////////////////////////////