From 3bde64e03338416142458f4727f6159a685ef409 Mon Sep 17 00:00:00 2001
From: Tomasz Sowa <t.sowa@ttmath.org>
Date: Thu, 12 May 2022 00:21:42 +0200
Subject: [PATCH] add possibility to set save status for the whole tree

add method:
void Model::set_save_mode2(SaveMode save_mode, bool update_whole_tree = true)
in the future it may be renamed to set_save_mode()
---
 src/dbexpression.cpp |  2 +-
 src/model.cpp        | 22 +++++++++++++++++++-
 src/model.h          | 49 +++++++++++++++++++++++++++++++++++++++++++-
 src/morm_types.h     |  4 ++--
 4 files changed, 72 insertions(+), 5 deletions(-)

diff --git a/src/dbexpression.cpp b/src/dbexpression.cpp
index 9841299..ed63b9b 100644
--- a/src/dbexpression.cpp
+++ b/src/dbexpression.cpp
@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (c) 2018-2021, Tomasz Sowa
+ * Copyright (c) 2018-2022, Tomasz Sowa
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/model.cpp b/src/model.cpp
index c1f99d9..9caf383 100644
--- a/src/model.cpp
+++ b/src/model.cpp
@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (c) 2018-2021, Tomasz Sowa
+ * Copyright (c) 2018-2022, Tomasz Sowa
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -74,6 +74,21 @@ Model::SaveMode Model::get_save_mode()
 }
 
 
+void Model::set_save_mode2(SaveMode save_mode, bool update_whole_tree)
+{
+	this->save_mode = save_mode;
+
+	if( update_whole_tree )
+	{
+		ModelEnv model_env_local;
+		model_env = &model_env_local;
+		model_env->model_work_mode = MORM_MODEL_WORK_MODE_PROPAGATE_SAVE_STATUS;
+		fields();
+		model_env = nullptr;
+	}
+}
+
+
 void Model::set_has_primary_key_set(bool has_primary_key)
 {
 	this->has_primary_key_set = has_primary_key;
@@ -1578,6 +1593,11 @@ void Model::field_model(const wchar_t * db_field_name, const wchar_t * flat_fiel
 			}
 		}
 
+		if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_PROPAGATE_SAVE_STATUS )
+		{
+			field_model.set_save_mode2(save_mode, true);
+		}
+
 		field_model.model_env = nullptr;
 	}
 }
diff --git a/src/model.h b/src/model.h
index 7c4de9d..15ce0a9 100644
--- a/src/model.h
+++ b/src/model.h
@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (c) 2018-2021, Tomasz Sowa
+ * Copyright (c) 2018-2022, Tomasz Sowa
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -153,6 +153,9 @@ public:
 	virtual void     set_save_mode(SaveMode save_mode);
 	virtual SaveMode get_save_mode();
 
+	// set_save_mode() will be changed to set_save_mode2() in the future
+	virtual void     set_save_mode2(SaveMode save_mode, bool update_whole_tree = true);
+
 	virtual void set_has_primary_key_set(bool has_primary_key);
 	virtual bool get_has_primary_key_set();
 
@@ -1188,6 +1191,45 @@ protected:
 	}
 
 
+	template<typename ModelContainer, typename ModelContainerType, typename IsContainerByValueRenameMe>
+	void field_list_propagate_save_status(ModelContainer & field_container, ModelContainerType * model_container_type, IsContainerByValueRenameMe * foo)
+	{
+		if constexpr (std::is_base_of<Model, ModelContainerType>())
+		{
+			if constexpr (std::is_base_of<Model, IsContainerByValueRenameMe>())
+			{
+				field_list_propagate_save_status_in_container_by_value(field_container, model_container_type);
+			}
+			else
+			{
+				field_list_propagate_save_status_in_container_by_pointer(field_container, model_container_type);
+			}
+		}
+	}
+
+
+	template<typename ModelContainer, typename ModelContainerType>
+	void field_list_propagate_save_status_in_container_by_value(ModelContainer & field_container, ModelContainerType * model_container_type)
+	{
+		for(ModelContainerType & item : field_container)
+		{
+			item.set_connector(model_connector);
+			item.set_save_mode2(save_mode, true);
+		}
+	}
+
+
+	template<typename ModelContainer, typename ModelContainerType>
+	void field_list_propagate_save_status_in_container_by_pointer(ModelContainer & field_container, ModelContainerType * model_container_type)
+	{
+		for(ModelContainerType * item : field_container)
+		{
+			item->set_connector(model_connector);
+			item->set_save_mode2(save_mode, true);
+		}
+	}
+
+
 	template<typename ContainerItemType>
 	void field_vector(const wchar_t * db_field_name, const wchar_t * flat_field_name, std::vector<ContainerItemType> & field_value, const FT & field_type)
 	{
@@ -1372,6 +1414,11 @@ protected:
 			{
 				field_list_clearing_values(field_container, model_container_type, foo);
 			}
+
+			if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_PROPAGATE_SAVE_STATUS )
+			{
+				field_list_propagate_save_status(field_container, model_container_type, foo);
+			}
 		}
 	}
 
diff --git a/src/morm_types.h b/src/morm_types.h
index d764171..78d385d 100644
--- a/src/morm_types.h
+++ b/src/morm_types.h
@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (c) 2018-2021, Tomasz Sowa
+ * Copyright (c) 2018-2022, Tomasz Sowa
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,7 +48,7 @@
 #define MORM_MODEL_WORK_MODE_GET_FIELD_MODEL 10
 #define MORM_MODEL_WORK_MODE_GET_MODEL_WRAPPER 11
 #define MORM_MODEL_WORK_MODE_PUT_FIELD_RAW_VALUE_TO_STREAM 12
-
+#define MORM_MODEL_WORK_MODE_PROPAGATE_SAVE_STATUS 13
 
 
 // submodes used in some cases