How to position inlines in Django Admin in the list_display property?

Question

I have two tables related Quiz and Difficulty_level:

I have created inline in admin.py like this:

class DifficultyLevelInline(admin.TabularInline):
    model = DifficultyLevel

and included in QuizAdmin

To arrange the list order, I would do:

  list_display = ('name', 'description', 'publication_date', 'category', 'is_active', 'is_premium')

How can I add inlines in the list_display order. I want to display The DifficultyLevelInline before category.

Answer 1

Unfortunately this is not possible using the default template.

If you take a look at change_form template:

https://github.com/django/django/blob/master/django/contrib/admin/templates/admin/change_form.html

You can see that inlines are always rendered after fieldsets.

One way to get around this would be to use other template:

class MyAdmin(admin.ModelAdmin):
    list_display = ('name', 'description', 'publication_date', 'category', 'is_active', 'is_premium')
    inlines = (DifficultyLevelInline,)
    change_form_template = "my_change_form.html"

Answer 2

Grapelli supports it: https://django-grappelli.readthedocs.org/en/latest/customization.html#rearrange-inlines

Basically, it uses a placeholder via fieldsets and then moves them HTML via JavaScript: https://github.com/sehmaschine/django-grappelli/blob/master/grappelli/templates/admin/change_form.html#L90-96 (search for placeholder, if the lines do not match anymore).

The same can be done by injecting custom javascript yourself (with or without using fieldsets as placeholders).