.. index::
   pair: Performance; list_select_related
   !  list_select_related

.. _list_select_related:

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**list_select_related**
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Django documentation
========================

- https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.list_select_related


Set list_select_related to tell Django to use select_related() in retrieving the list of objects on the admin change list page. This can save you a bunch of database queries.

The value should be either a boolean, a list or a tuple. Default is False.

When value is True, select_related() will always be called. When value is set to False, Django will look at list_display and call select_related() if any ForeignKey is present.

If you need more fine-grained control, use a tuple (or list) as value for list_select_related. Empty tuple will prevent Django from calling select_related at all. Any other tuple will be passed directly to select_related as parameters. For example:

class ArticleAdmin(admin.ModelAdmin):
    list_select_related = ('author', 'category')

will call select_related('author', 'category').

If you need to specify a dynamic value based on the request, you can implement a get_list_select_related() method.