To add a field with access limited to specific security groups, perform the following steps:
- Edit the model file to add the field:
private_notes = fields.Text(groups='base.group_system')
- Edit the view in the XML file to add the field:
<field name="private_notes" />
That's it. Now, upgrade the addon module for the changes in the model to take place. If you sign in with a user with no system configuration access, such as demo in a database with demonstration data, the Library Books form won't display the field.