Modify the Result class

orm_lib/inc/drogon/orm/Field.h

@@ -158,7 +158,7 @@ class Field
     Field(const Row &row, Row::size_type columnNum) noexcept;
 
   private:
-    Result _result;
+    const Result _result;
 };
 template <>
 std::string Field::as<std::string>() const;

orm_lib/inc/drogon/orm/Result.h

@@ -76,8 +76,6 @@ class Result
     row_size_type columns() const noexcept;
     /// Name of column with this number (throws exception if it doesn't exist)
     const char *columnName(row_size_type number) const;
-    const std::string &errorDescription() const { return _errString; }
-    void setError(const std::string &description) { _errString = description; }
 
     size_type affectedRows() const noexcept;
 
@@ -88,8 +86,7 @@ class Result
 
   private:
     ResultImplPtr _resultPtr;
-    
-    std::string _errString;
+
     friend class Field;
     friend class Row;
     /// Number of given column (throws exception if it doesn't exist).

orm_lib/inc/drogon/orm/Row.h

@@ -55,7 +55,7 @@ class Row
     ConstReverseIterator crend() const;
 
   private:
-    Result _result;
+    const Result _result;
 
   protected:
     friend class Field;

orm_lib/src/Result.cc

@@ -114,7 +114,6 @@ Result::size_type Result::size() const noexcept
 void Result::swap(Result &other) noexcept
 {
     _resultPtr.swap(other._resultPtr);
-    _errString.swap(other._errString);
 }
 Result::row_size_type Result::columns() const noexcept
 {

orm_lib/src/sqlite3_impl/test/test1.cc

@@ -9,11 +9,9 @@ using namespace drogon::orm;
 int main()
 {
     trantor::Logger::setLogLevel(trantor::Logger::TRACE);
-    drogon::app().createDbClient("sqlite3", "", 0, "", "", "", 3, "test.db");
-    //auto clientPtr = DbClient::newSqlite3Client("filename=test.db", 3);
-
+    auto clientPtr = DbClient::newSqlite3Client("filename=test.db", 3);
     sleep(1);
-    auto clientPtr = app().getDbClient();
+    
     LOG_DEBUG << "start!";
     // *clientPtr << "Drop table groups;" << Mode::Blocking >>
     //     [](const Result &r) {