Keeping Track of Changes¶

Since logging of database changes will inevitably cause some extra work, this feature is optional per site and per model.

Usage instructions for application developers:

Override the lino.Lino.on_site_startup() method of your Lino instance (in your application's settings.py) with something like this:
```
def on_site_startup(self):
    self.modules.contacts.Person.watch_changes()
    super(Lino,self).on_site_startup()
```
See lino.core.model.Model.watch_changes() for possible parameters.
In the lino.core.actors.Actor.detail_layout of your contact.Person include the lino.ChangesByObject slave table.

lino.models.ChangesByObject

Implementation