From e127f33e3af6ce5b93deba251b68dbd0189cc6d2 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Fri, 26 Aug 2011 01:58:07 -0400
Subject: [PATCH] TDB2::siblings

- TDB2 helper function to locate sibling tasks.
---
 src/TDB2.cpp | 36 ++++++++++++++++++++++++++++++++++++
 src/TDB2.h   |  1 +
 2 files changed, 37 insertions(+)

diff --git a/src/TDB2.cpp b/src/TDB2.cpp
index 54be1cf3f..a7bd92b0a 100644
--- a/src/TDB2.cpp
+++ b/src/TDB2.cpp
@@ -627,6 +627,42 @@ bool TDB2::get (const std::string& uuid, Task& task)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+const std::vector <Task> TDB2::siblings (Task& task)
+{
+  std::vector <Task> results;
+  if (task.has ("parent"))
+  {
+    std::string parent = task.get ("parent");
+
+    // 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)
+    {
+      // Do not include self in results.
+      if (i->id != task.id)
+      {
+        // Do not include completed or deleted tasks.
+        if (i->getStatus () != Task::completed &&
+            i->getStatus () != Task::deleted)
+        {
+          // If task has the same parent, it is a sibling.
+          if (i->has ("parent") &&
+              i->get ("parent") == parent)
+          {
+            results.push_back (*i);
+          }
+        }
+      }
+    }
+  }
+
+  return results;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool TDB2::verifyUniqueUUID (const std::string& uuid)
 {
diff --git a/src/TDB2.h b/src/TDB2.h
index 34a70d37a..db03dd23c 100644
--- a/src/TDB2.h
+++ b/src/TDB2.h
@@ -102,6 +102,7 @@ public:
   // Generalized task accessors.
   bool get (int, Task&);
   bool get (const std::string&, Task&);
+  const std::vector <Task> siblings (Task&);
 
   void dump ();