From e78db08d98d5adb4dee3006eea8c3569e383c562 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 15 Jun 2015 12:36:53 +0200
Subject: Add points_to pragma

Currently does not support containers.
---
 odb/relational/model.hxx     | 96 ++++++++++++++++++++++++++++++++------------
 odb/relational/validator.cxx |  4 +-
 2 files changed, 73 insertions(+), 27 deletions(-)

(limited to 'odb/relational')

diff --git a/odb/relational/model.hxx b/odb/relational/model.hxx
index 94f093a..77631e2 100644
--- a/odb/relational/model.hxx
+++ b/odb/relational/model.hxx
@@ -237,9 +237,6 @@ namespace relational
       virtual void
       traverse_pointer (semantics::data_member& m, semantics::class_& c)
       {
-        using sema_rel::column;
-        using sema_rel::foreign_key;
-
         // Ignore inverse object pointers.
         //
         if (inverse (m, key_prefix_))
@@ -254,6 +251,76 @@ namespace relational
           return;
         }
 
+        // Get the position of the last column.
+        //
+        sema_rel::table::names_iterator i (table_.names_end ());
+
+        while (i != table_.names_begin ())
+        {
+          --i;
+          if (i->nameable ().is_a<sema_rel::column> ())
+            break;
+        }
+
+        // Traverse the object pointer as columns.
+        //
+        object_columns_base::traverse_pointer (m, c);
+
+        // Get to the first column that we have added.
+        //
+        if (i != table_.names_end ())
+          ++i; // Next column.
+        else
+          i = table_.names_begin ();
+
+        foreign_key (m, c, i);
+      }
+
+      virtual void
+      traverse_points_to (semantics::data_member& m, semantics::class_& c)
+      {
+        if (deleted (member_path_))
+        {
+          // Still traverse it as columns so that we can populate the
+          // deleted map.
+          //
+          object_columns_base::traverse_points_to (m, c);
+          return;
+        }
+
+        // Get the position of the last column.
+        //
+        sema_rel::table::names_iterator i (table_.names_end ());
+
+        while (i != table_.names_begin ())
+        {
+          --i;
+          if (i->nameable ().is_a<sema_rel::column> ())
+            break;
+        }
+
+        // Traverse the data member as columns.
+        //
+        object_columns_base::traverse_points_to (m, c);
+
+        // Get to the first column that we have added.
+        //
+        if (i != table_.names_end ())
+          ++i; // Next column.
+        else
+          i = table_.names_begin ();
+
+        foreign_key (m, c, i);
+      }
+
+      virtual void
+      foreign_key (semantics::data_member& m,
+                   semantics::class_& c,
+                   sema_rel::table::names_iterator i)
+      {
+        using sema_rel::column;
+        using sema_rel::foreign_key;
+
         string id (id_prefix_ +
                    (key_prefix_.empty () ? m.name () : key_prefix_));
 
@@ -287,29 +354,8 @@ namespace relational
           simple = (fk.referenced_columns ().size () == 1);
         }
 
-        // Get the position of the last column.
+        // Get referencing columns.
         //
-        sema_rel::table::names_iterator i (table_.names_end ());
-
-        while (i != table_.names_begin ())
-        {
-          --i;
-
-          if (i->nameable ().is_a<column> ())
-            break;
-        }
-
-        // Traverse the object pointer as columns.
-        //
-        object_columns_base::traverse_pointer (m, c);
-
-        // Add the newly added columns to the foreign key.
-        //
-        if (i != table_.names_end ())
-          ++i;
-        else
-          i = table_.names_begin ();
-
         for (; i != table_.names_end (); ++i)
         {
           if (column* c = dynamic_cast<column*> (&i->nameable ()))
diff --git a/odb/relational/validator.cxx b/odb/relational/validator.cxx
index 47f089c..3b867f8 100644
--- a/odb/relational/validator.cxx
+++ b/odb/relational/validator.cxx
@@ -59,9 +59,9 @@ namespace relational
           const char* kp (container (m) ? "value" : "");
           location l (m.location ());
 
-          // Make sure it is a pointer.
+          // Make sure it is a pointer or a member with points_to pragma.
           //
-          if (!object_pointer (member_utype (m, kp)))
+          if (!object_pointer (member_utype (m, kp)) && !points_to (m))
           {
             error (l) << "on_delete specified for non-object pointer" << endl;
             valid_ = false;
-- 
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