From d85907da6679c80bd5f242e18aa47184310c445b Mon Sep 17 00:00:00 2001
From: Timm Fitschen <t.fitschen@indiscale.com>
Date: Fri, 6 Aug 2021 12:31:48 +0200
Subject: [PATCH] add empty result set when single count query
---
include/caosdb/transaction.h | 17 +++++++++++++++++
src/caosdb/transaction.cpp | 3 +++
2 files changed, 20 insertions(+)
diff --git a/include/caosdb/transaction.h b/include/caosdb/transaction.h
index f433288..c246bc5 100644
--- a/include/caosdb/transaction.h
+++ b/include/caosdb/transaction.h
@@ -389,6 +389,23 @@ public:
return this->request->requests_size();
}
+ /**
+ * Get a JSON representation of the respone.
+ *
+ * For debugging.
+ */
+ inline auto ResponseToString() const -> const std::string {
+ google::protobuf::util::JsonOptions options;
+ std::string out;
+ google::protobuf::util::MessageToJsonString(*this->response, &out, options);
+ return out;
+ }
+
+ /**
+ * Get a JSON representation of the request.
+ *
+ * For debugging.
+ */
inline auto RequestToString() const -> const std::string {
google::protobuf::util::JsonOptions options;
std::string out;
diff --git a/src/caosdb/transaction.cpp b/src/caosdb/transaction.cpp
index f866ca3..93b6f48 100644
--- a/src/caosdb/transaction.cpp
+++ b/src/caosdb/transaction.cpp
@@ -300,6 +300,9 @@ auto Transaction::WaitForIt() const noexcept -> TransactionStatus {
} break;
case QueryResponseCase::kCountResult: {
this->query_count = retrieve_response->count_result();
+ std::vector<std::unique_ptr<Entity>> entities;
+ this->result_set =
+ std::make_unique<MultiResultSet>(std::move(entities));
} break;
default:
// TODO(tf) Error
--
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