Fixed #24285 -- Made for_user argument optional for {% get_admin_log %} tag

    def render(self, context):

        if self.user is None:

            context[self.varname] = LogEntry.objects.all().select_related('content_type', 'user')[:self.limit]

            entries = LogEntry.objects.all()

        else:

            user_id = self.user

            if not user_id.isdigit():

                user_id = context[self.user].pk

            context[self.varname] = LogEntry.objects.filter(

                user__pk=user_id,

            ).select_related('content_type', 'user')[:int(self.limit)]

            entries = LogEntry.objects.filter(user__pk=user_id)

        context[self.varname] = entries.select_related('content_type', 'user')[:int(self.limit)]

        return ''

import datetime

from django.contrib import admin

from django.contrib.admin.models import LogEntry

from django.contrib.admin.options import IncorrectLookupParameters

from django.contrib.admin.templatetags.admin_list import pagination

from django.contrib.admin.tests import AdminSeleniumWebDriverTestCase

from django.contrib.admin.views.main import ALL_VAR, SEARCH_VAR, ChangeList

from django.contrib.auth.models import User

from django.contrib.contenttypes.models import ContentType

from django.core.urlresolvers import reverse

from django.template import Context, Template

from django.test import TestCase, override_settings

        # it doesn't render any string.

        self.assertEqual(template.render(context), '')

    def test_get_admin_log_templatetag_no_user(self):

        """

        The {% get_admin_log %} tag should work without specifying a user.

        """

        user = User(username='jondoe', password='secret', email='super@example.com')

        user.save()

        ct = ContentType.objects.get_for_model(User)

        LogEntry.objects.log_action(user.pk, ct.pk, user.pk, repr(user), 1)

        t = Template(

            '{% load log %}'

            '{% get_admin_log 100 as admin_log %}'

            '{% for entry in admin_log %}'

            '{{ entry|safe }}'

            '{% endfor %}'

        )

        self.assertEqual(t.render(Context({})), 'Added "<User: jondoe>".')

@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],

                   ROOT_URLCONF="admin_changelist.urls")