TDB2::get

- Implemented high-level accessors for tasks, by ID and UUID.  This
  permits full DOM implementation.

src/TDB2.cpp

@@ -555,6 +555,78 @@ int TDB2::next_id ()
   return _id++;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// Locate task by ID.
+bool TDB2::get (int id, Task& task)
+{
+  // First load and scan pending.
+  if (! pending._loaded_tasks)
+    pending.load_tasks ();
+
+  std::vector <Task>::iterator i;
+  for (i = pending._tasks.begin (); i != pending._tasks.end (); ++i)
+  {
+    if (i->id == id)
+    {
+      task = *i;
+      return true;
+    }
+  }
+
+  // Next load and scan completed.
+  // Note that this is harmless, because it is only performed if the above
+  // load and search fails.
+  if (! completed._loaded_tasks)
+    completed.load_tasks ();
+
+  for (i = completed._tasks.begin (); i != completed._tasks.end (); ++i)
+  {
+    if (i->id == id)
+    {
+      task = *i;
+      return true;
+    }
+  }
+
+  return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Locate task by UUID.
+bool TDB2::get (const std::string& uuid, Task& task)
+{
+  // First load and scan pending.
+  if (! pending._loaded_tasks)
+    pending.load_tasks ();
+
+  std::vector <Task>::iterator i;
+  for (i = pending._tasks.begin (); i != pending._tasks.end (); ++i)
+  {
+    if (i->get ("uuid") == uuid)
+    {
+      task = *i;
+      return true;
+    }
+  }
+
+  // Next load and scan completed.
+  // Note that this is harmless, because it is only performed if the above
+  // load and search fails.
+  if (! completed._loaded_tasks)
+    completed.load_tasks ();
+
+  for (i = completed._tasks.begin (); i != completed._tasks.end (); ++i)
+  {
+    if (i->get ("uuid") == uuid)
+    {
+      task = *i;
+      return true;
+    }
+  }
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool TDB2::verifyUniqueUUID (const std::string& uuid)
 {

src/TDB2.h

@@ -59,6 +59,7 @@ public:
   void load_lines ();
   void load_contents ();
 
+  // ID <--> UUID mapping.
   std::string uuid (int);
   int id (const std::string&);
 
@@ -98,6 +99,10 @@ public:
   int  gc ();
   int  next_id ();
 
+  // Generalized task accessors.
+  bool get (int, Task&);
+  bool get (const std::string&, Task&);
+
   void dump ();
 
 private: