mORMot Open Source

factor200x

Member

Registered: 2017-05-23

Posts: 15

Question / Problem with the inheritance of TSQLRecord and TSQLRecordHi

Hello, everyone,

first of all I would like to thank you for providing the framework! I have worked my way through a few weeks now and am more than enthusiastic!!

My question/problem:

I have the following definition for my table (here a simple example):

type
  TSQLRecordTimeStamped = class(
    TSQLRecord )
  private
    fUsername:  RawUtf8;
  published
    property Username: RawUtf8 read    fUsernamewrite   fUsername;
  end;


type
  TSQLTitle = class(
    TSQLRecordTimeStamped )
  private
    fName:   RawUtf8;
  published
    property Name: RawUtf8     read    fName     write   fName;
  end;


Create model:

model.create(    TSQLRecordHistory,    TSQLTitle);

Enable History:

database.TrackChanges( [ TSQLTitle ] );

Everything's going great. I just have a problem. When a record is changed, only the value of the Name field is logged. The value of the field "Username" (inherited field) is not logged.

Am I doing something wrong or do I have a mental error?

Thank you in advance
Olaf

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,660

Website

Re: Question / Problem with the inheritance of TSQLRecord and TSQLRecordHi

Only the changed field is stored, IIRC.
Are you sure the Username field was also changed during your tests?