Display tick and cross icons for a property in the Django administration console

Question

In the Django admin if the field is a BooleanField or NullBooleanField, Django will display a pretty "on" or "off" icon instead of True or False.

Now, I don't really have a BooleanField in my model by I do have a property fior which I'd like to display the icons but when I try doing so, Django screams that 'SomeAdmin.list_filter[0]' refers to 'is_activated' which does not refer to a Field.

Is it possible to display those nice little icons for this field without hacking Django too much.

Thanks

Answer 1

You don't want to use list_filter. The property you're looking for is list_display. The documentation offers an example of how you can create a column that behaves like a boolean in the display. In short, you do something like this:

1. Create a method in the class:

   def is_activated(self)
       if self.bar == 'something':
           return True
       return False
   

2. add the .boolean method attribute directly below the is_activated method:

   is_activated.boolean = True
   

3. Add the method as a field in list_display:

   class MyAdmin(ModelAdmin): list_display = ['name', 'is_activated']

4. You'll notice the column name is probably now "Is Activated" or something like that. If you want the column heading to change, you use the short_description method attribute:

   is_activated.short_description = "Activated"