Method get_changelist_instance

django/contrib/admin/options.py:905–949

Return a `ChangeList` instance based on `request`. May raise `IncorrectLookupParameters`.

(self, request)

        return ChangeList

    def get_changelist_instance(self, request):
        """
        Return a `ChangeList` instance based on `request`. May raise
        `IncorrectLookupParameters`.
        """
        list_display = self.get_list_display(request)
        list_display_links = self.get_list_display_links(request, list_display)
        # Add the action checkboxes if any actions are available.
        # RemovedInDjango70Warning: When the deprecation ends, replace with:
        # if self.get_actions(
        #     request, action_location=ActionLocation.CHANGE_LIST
        # ):
        if self._get_actions_with_action_location(
            request, action_location=ActionLocation.CHANGE_LIST
        ):
            list_display = ["action_checkbox", *list_display]
        sortable_by = self.get_sortable_by(request)
        ChangeList = self.get_changelist(request)
        list_select_related = self.get_list_select_related(request)
        if list_select_related is True:
            # RemovedInDjango70Warning: when the deprecation ends, remove the
            # below 'if' clause and raise a ValueError here.
            if self.list_select_related is not True:
                warnings.warn(
                    "Returning True from ModelAdmin.get_list_select_related() is "
                    "deprecated. Return False or a list or tuple of fields to "
                    "fetch instead.",
                    RemovedInDjango70Warning,
                )
        return ChangeList(
            request,
            self.model,
            list_display,
            list_display_links,
            self.get_list_filter(request),
            self.date_hierarchy,
            self.get_search_fields(request),
            list_select_related,
            self.list_per_page,
            self.list_max_show_all,
            self.list_editable,
            self,
            sortable_by,
            self.search_help_text,
        )

    def get_object(self, request, object_id, from_field=None):
        """