From d4be234991f2a2e6abd8b2c0d585eb4ae6216979 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 29 Apr 2021 18:36:16 +0200
Subject: Add prepared_query_impl::verify_connection()

---
 odb/prepared-query.cxx | 7 +++++++
 odb/prepared-query.hxx | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/odb/prepared-query.cxx b/odb/prepared-query.cxx
index 65779aa..70bcaa1 100644
--- a/odb/prepared-query.cxx
+++ b/odb/prepared-query.cxx
@@ -2,6 +2,7 @@
 // license   : GNU GPL v2; see accompanying LICENSE file
 
 #include <odb/connection.hxx>
+#include <odb/transaction.hxx>
 #include <odb/prepared-query.hxx>
 
 namespace odb
@@ -26,6 +27,12 @@ namespace odb
       next_->prev_ = this;
   }
 
+  bool prepared_query_impl::
+  verify_connection (transaction& t)
+  {
+    return &t.connection () == &stmt->connection ();
+  }
+
   void prepared_query_impl::
   list_remove ()
   {
diff --git a/odb/prepared-query.hxx b/odb/prepared-query.hxx
index 37d2b76..7cac6da 100644
--- a/odb/prepared-query.hxx
+++ b/odb/prepared-query.hxx
@@ -24,6 +24,12 @@ namespace odb
 
     prepared_query_impl (connection&);
 
+    // Verify this prepared query and the specified transaction use the
+    // same connection.
+    //
+    virtual bool
+    verify_connection (transaction&);
+
     bool cached;
     connection& conn;
     const char* name;
-- 
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