Method RestoreAttribute

lib/base/configobject.cpp:213–324

}

void ConfigObject::RestoreAttribute(const String& attr, bool updateVersion)
{
	Type::Ptr type = GetReflectionType();

	std::vector<String> tokens = attr.Split(".");

	String fieldName = tokens[0];

	int fid = type->GetFieldId(fieldName);

	Value currentValue = GetField(fid);

	Dictionary::Ptr original_attributes = GetOriginalAttributes();

	if (!original_attributes)
		return;

	Value oldValue = original_attributes->Get(attr);
	Value newValue;

	if (tokens.size() > 1) {
		newValue = currentValue.Clone();
		Value current = newValue;

		if (current.IsEmpty())
			BOOST_THROW_EXCEPTION(std::invalid_argument("Cannot restore non-existent object attribute"));

		String prefix = tokens[0];

		for (std::vector<String>::size_type i = 1; i < tokens.size() - 1; i++) {
			if (!current.IsObjectType<Dictionary>())
				BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));

			Dictionary::Ptr dict = current;

			const String& key = tokens[i];
			prefix += "." + key;

			if (!dict->Contains(key))
				BOOST_THROW_EXCEPTION(std::invalid_argument("Cannot restore non-existent object attribute"));

			current = dict->Get(key);
		}

		if (!current.IsObjectType<Dictionary>())
			BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));

		Dictionary::Ptr dict = current;

		const String& key = tokens[tokens.size() - 1];
		prefix += "." + key;

		std::vector<String> restoredAttrs;

		{
			ObjectLock olock(original_attributes);
			for (const auto& kv : original_attributes) {
				std::vector<String> originalTokens = String(kv.first).Split(".");