From 85245e4a7f941657c2236e0afacd10bc9cb0b140 Mon Sep 17 00:00:00 2001
From: Gautier Bureau <gautier.bureau@rte-france.com>
Date: Fri, 16 Dec 2022 13:56:11 +0100
Subject: [PATCH] Fix SlackTerminal optional side attribute.

Signed-off-by: Gautier Bureau <gautier.bureau@rte-france.com>
---
 src/iidm/extensions/SlackTerminalXmlSerializer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/iidm/extensions/SlackTerminalXmlSerializer.cpp b/src/iidm/extensions/SlackTerminalXmlSerializer.cpp
index a132f818..47213d63 100644
--- a/src/iidm/extensions/SlackTerminalXmlSerializer.cpp
+++ b/src/iidm/extensions/SlackTerminalXmlSerializer.cpp
@@ -56,7 +56,7 @@ Extension& SlackTerminalXmlSerializer::read(Extendable& extendable, converter::x
     }
     auto& voltageLevel = dynamic_cast<VoltageLevel&>(extendable);
     const std::string& id = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(converter::ID));
-    const std::string& side = context.getReader().getAttributeValue(converter::SIDE);
+    const std::string& side = context.getReader().getOptionalAttributeValue(converter::SIDE, "");
     Terminal& terminal = converter::xml::TerminalRefXml::readTerminalRef(voltageLevel.getNetwork(), id, side);
     extendable.newExtension<SlackTerminalAdder>().withTerminal(terminal).add();
     return extendable.getExtension<iidm::extensions::SlackTerminal>();