proxy lazy resolve progress

source/orm/CMakeLists.txt

@@ -70,6 +70,7 @@ add_library(matador-orm STATIC
   ../../include/matador/sql/statement.hpp
   ../../include/matador/sql/table.hpp
   orm/error_code.cpp
+  orm/query_builder_exception.cpp
   orm/session.cpp
   orm/session_insert_builder.cpp
   orm/session_query_builder.cpp

source/orm/orm/query_builder_exception.cpp

@@ -0,0 +1,17 @@
+#include "matador/orm/query_builder_exception.hpp"
+
+namespace matador::orm {
+
+query_builder_exception::query_builder_exception( const query_build_error error, utils::error&& err )
+: error_type_(error)
+, error_( std::move(err) ) {}
+
+query_build_error query_builder_exception::error_type() const {
+  return error_type_;
+}
+
+const utils::error& query_builder_exception::error() const {
+  return error_;
+}
+
+}