EHN: Add ToString to ProtoMessageWrapper

include/caosdb/protobuf_helper.h

@@ -22,9 +22,11 @@
 #ifndef CAOSDB_PROTOBUF_HELPER_H
 #define CAOSDB_PROTOBUF_HELPER_H
 
-#include "caosdb/status_code.h"
+#include "caosdb/status_code.h"             // for StatusCode, SUCCESS
 #include <google/protobuf/arena.h>          // for Arena
 #include <google/protobuf/extension_set.h>  // for Arena
+#include <google/protobuf/util/json_util.h> // for JsonOptions, MessageToJs...
+#include <string>                           // for string
 
 #define CAOSDB_DEBUG_MESSAGE_STRING(message, out)                                                  \
   std::string out;                                                                                 \
@@ -47,6 +49,14 @@ public:
     return StatusCode::SUCCESS;
   }
 
+  /**
+   * Return a json representation of this object.
+   */
+  inline auto ToString() const noexcept -> const std::string {
+    CAOSDB_DEBUG_MESSAGE_STRING(*wrapped, out)
+    return out;
+  }
+
 protected:
   ProtoMessageWrapper() : ProtoMessageWrapper(Arena::CreateMessage<P>(get_arena())) {}
   ProtoMessageWrapper(P *wrapped) : wrapped(wrapped) {}

include/caosdb/value.h

@@ -22,13 +22,9 @@
 #ifndef CAOSDB_VALUE_H
 #define CAOSDB_VALUE_H
 #include "caosdb/protobuf_helper.h"         // for ProtoMessageWrapper
-#include "caosdb/logging.h"                 // IWYU pragma: keep
 #include "caosdb/entity/v1alpha1/main.pb.h" // for RepeatedPtrField, Message
-
 #include <cstdint>                          // for int64_t
 #include <google/protobuf/arena.h>          // for Arena
-#include <google/protobuf/generated_message_util.h> // for Arena
-#include <google/protobuf/util/json_util.h>         // IWYU pragma: keep
 #include <memory>                           // for unique_ptr
 #include <string>                           // for string, operator==
 #include <utility>                          // for move
@@ -412,11 +408,6 @@ public:
     return *this;
   }
 
-  inline auto ToString() const noexcept -> const std::string {
-    CAOSDB_DEBUG_MESSAGE_STRING(*wrapped, out)
-    return out;
-  }
-
   friend class Entity;
   friend class Property;
 

src/caosdb/entity.cpp

@@ -25,7 +25,6 @@
 #include "caosdb/protobuf_helper.h"         // for get_arena
 #include "caosdb/value.h"                   // for Value
 #include <google/protobuf/arena.h>          // for Arena
-#include <google/protobuf/generated_message_util.h> // for Arena::Create...
 #include <new>                              // for operator new
 
 namespace caosdb::entity {