SOLVED Django historical records not showing up in admin

Question

I am setting historical record for some of my models. It works, the table is created and behaves as expected, however, I can not get it to appear in my admin tables.

models.py

class Test(models.Model):
    ...
    history = HistoricalRecords()

In admin.py I have a TestAdmin(admin.ModelAdmin) such as:

class TestAdmin(admin.ModelAdmin):
    list_display = ('test', 'id')
    list_filter = ['test']


admin.site.register(Test, TestAdmin) #1
# admin.site.register(Test, SimpleHistoryAdmin) #2

When I use the #1 line I have everything working well except that I don't have the historical table. When I use the #2 line I don't get it neither and my format doesn't work anymore. When I set both I get an error django.contrib.admin.sites.AlreadyRegistered: The model Test is already registered with 'test.TestAdmin' (that makes sens).

What am I missing to get the historical record table appears in my admin?

Thanks for your time.

Answer 1

You should subclass the SimpleHistoryAdmin as is specified in the Displaying custom columns in the admin history list view section of the documentation:

class TestAdmin(SimpleHistoryAdmin):
    list_display = ('test', 'id')
    history_list_display = ['test']
    list_filter = ['test']

admin.site.register(Test, TestAdmin)