From ad79f7f35b154bf2123f85fde29745b7fb8d8455 Mon Sep 17 00:00:00 2001
From: Robert Adam <dev@robert-adam.de>
Date: Tue, 24 Oct 2023 19:24:53 +0200
Subject: [PATCH] Bind blobs to actual blob objects

This ensures that when binding blobs dynamically (e.g. in a row), they
are properly represented as a soci::blob object and not by a
std::string.
---
 include/soci/statement.h |  5 +++++
 src/core/statement.cpp   | 19 ++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/include/soci/statement.h b/include/soci/statement.h
index b356762e0..6d08187b8 100644
--- a/include/soci/statement.h
+++ b/include/soci/statement.h
@@ -16,6 +16,7 @@
 #include "soci/use.h"
 #include "soci/soci-backend.h"
 #include "soci/row.h"
+#include "soci/blob.h"
 // std
 #include <cstddef>
 #include <string>
@@ -164,6 +165,10 @@ class SOCI_DECL statement_impl
     SOCI_NOT_COPYABLE(statement_impl)
 };
 
+template<>
+void statement_impl::into_row<blob>();
+
+
 } // namespace details
 
 // Statement is a handle class for statement_impl
diff --git a/src/core/statement.cpp b/src/core/statement.cpp
index 4bf9f0e79..4a5dc9cc8 100644
--- a/src/core/statement.cpp
+++ b/src/core/statement.cpp
@@ -6,6 +6,8 @@
 //
 
 #define SOCI_SOURCE
+#include "soci/blob.h"
+#include "soci/blob-exchange.h"
 #include "soci/statement.h"
 #include "soci/session.h"
 #include "soci/into-type.h"
@@ -664,6 +666,12 @@ void statement_impl::bind_into<dt_date>()
     into_row<std::tm>();
 }
 
+template<>
+void statement_impl::bind_into<dt_blob>()
+{
+    into_row<blob>();
+}
+
 void statement_impl::describe()
 {
     row_->clean_up();
@@ -686,7 +694,7 @@ void statement_impl::describe()
             bind_into<dt_string>();
             break;
         case dt_blob:
-            bind_into<dt_string>();
+            bind_into<dt_blob>();
             break;
         case dt_xml:
             bind_into<dt_string>();
@@ -825,3 +833,12 @@ statement_impl::rethrow_current_exception_with_context(char const* operation)
         throw;
     }
 }
+
+template<>
+void statement_impl::into_row<blob>()
+{
+    blob * b = new blob(session_);
+    indicator * ind = new indicator(i_ok);
+    row_->add_holder(b, ind);
+    exchange_for_row(into(*b, *ind));
+}