From f1d06b7994d8b0aa31f86288183f46509bb78c19 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 30 Apr 2021 10:03:56 +0200
Subject: Add transaction::connection(database&) overload

---
 odb/transaction.hxx | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

(limited to 'odb/transaction.hxx')

diff --git a/odb/transaction.hxx b/odb/transaction.hxx
index 1298760..1958df3 100644
--- a/odb/transaction.hxx
+++ b/odb/transaction.hxx
@@ -61,9 +61,17 @@ namespace odb
 
     // Return the connection this transaction is on.
     //
+    // The second version verifies the connection is to the specified
+    // database. For database implementations that support attaching multiple
+    // databases it may also select the connection corresponding to the
+    // specified database.
+    //
     connection_type&
     connection ();
 
+    connection_type&
+    connection (database_type&);
+
     bool
     finalized () const {return finalized_;}
 
@@ -215,6 +223,7 @@ namespace odb
   class LIBODB_EXPORT transaction_impl
   {
   public:
+    typedef odb::tracer tracer_type;
     typedef odb::database database_type;
     typedef odb::connection connection_type;
 
@@ -236,11 +245,14 @@ namespace odb
       return database_;
     }
 
-    connection_type&
-    connection ()
-    {
-      return *connection_;
-    }
+    virtual connection_type&
+    connection (database_type*);
+
+    virtual void
+    tracer (tracer_type*);
+
+    virtual tracer_type*
+    tracer () const;
 
   protected:
     transaction_impl (database_type& db)
-- 
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