7 files changed, 15 insertions, 23 deletions

diff --git a/odb/mysql/database.cxx b/odb/mysql/database.cxx
index d1ba3fd..6c0f1d6 100644
--- a/odb/mysql/database.cxx
+++ b/odb/mysql/database.cxx
@@ -305,7 +305,9 @@ namespace odb
         cp = factory_->connect ();
 
       mysql::connection& c (
-        cp != 0 ? *cp : transaction::current ().connection ());
+        cp != 0
+        ? *cp
+        : transaction::current ().connection (const_cast<database&> (*this)));
 
       try
       {
diff --git a/odb/mysql/database.ixx b/odb/mysql/database.ixx
index 711dd46..f9b62dd 100644
--- a/odb/mysql/database.ixx
+++ b/odb/mysql/database.ixx
@@ -601,7 +601,7 @@ namespace odb
     {
       // Throws if not in transaction.
       //
-      mysql::connection& c (transaction::current ().connection ());
+      mysql::connection& c (transaction::current ().connection (*this));
       return c.prepare_query<T> (n, q);
     }
 
diff --git a/odb/mysql/polymorphic-object-statements.txx b/odb/mysql/polymorphic-object-statements.txx
index 1217a0a..5899bc0 100644
--- a/odb/mysql/polymorphic-object-statements.txx
+++ b/odb/mysql/polymorphic-object-statements.txx
@@ -116,7 +116,7 @@ namespace odb
                     root_type& robj,
                     const schema_version_migration* svm)
     {
-      connection_type& conn (transaction::current ().connection ());
+      connection_type& conn (transaction::current ().connection (db));
       polymorphic_derived_object_statements& sts (
         conn.statement_cache ().find_object<object_type> ());
       root_statements_type& rsts (sts.root_statements ());
diff --git a/odb/mysql/transaction-impl.hxx b/odb/mysql/transaction-impl.hxx
index a83f68d..d87ad35 100644
--- a/odb/mysql/transaction-impl.hxx
+++ b/odb/mysql/transaction-impl.hxx
@@ -38,17 +38,12 @@ namespace odb
       virtual void
       rollback ();
 
-      connection_type&
-      connection ();
-
     private:
       connection_ptr connection_;
     };
   }
 }
 
-#include <odb/mysql/transaction-impl.ixx>
-
 #include <odb/post.hxx>
 
 #endif // ODB_MYSQL_TRANSACTION_IMPL_HXX
diff --git a/odb/mysql/transaction-impl.ixx b/odb/mysql/transaction-impl.ixx
deleted file mode 100644
index 3951aed..0000000
--- a/odb/mysql/transaction-impl.ixx
+++ /dev/null
@@ -1,14 +0,0 @@
-// file      : odb/mysql/transaction-impl.ixx
-// license   : GNU GPL v2; see accompanying LICENSE file
-
-namespace odb
-{
-  namespace mysql
-  {
-    inline transaction_impl::connection_type& transaction_impl::
-    connection ()
-    {
-      return *connection_;
-    }
-  }
-}
diff --git a/odb/mysql/transaction.hxx b/odb/mysql/transaction.hxx
index 3cfd042..0f5ae6f 100644
--- a/odb/mysql/transaction.hxx
+++ b/odb/mysql/transaction.hxx
@@ -41,6 +41,9 @@ namespace odb
       connection_type&
       connection ();
 
+      connection_type&
+      connection (odb::database&);
+
       // Return current transaction or throw if there is no transaction
       // in effect.
       //
diff --git a/odb/mysql/transaction.ixx b/odb/mysql/transaction.ixx
index 068b184..15af6a5 100644
--- a/odb/mysql/transaction.ixx
+++ b/odb/mysql/transaction.ixx
@@ -39,7 +39,13 @@ namespace odb
     inline transaction::connection_type& transaction::
     connection ()
     {
-      return implementation ().connection ();
+      return static_cast<connection_type&> (odb::transaction::connection ());
+    }
+
+    inline transaction::connection_type& transaction::
+    connection (odb::database& db)
+    {
+      return static_cast<connection_type&> (odb::transaction::connection (db));
     }
 
     inline void transaction::