diff --git a/combo/apps/kb/__init__.py b/combo/apps/kb/__init__.py
new file mode 100644
index 00000000..6336152c
--- /dev/null
+++ b/combo/apps/kb/__init__.py
@@ -0,0 +1,26 @@
+# combo - content management system
+# Copyright (C) 2020 Entr'ouvert
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .
+
+import django.apps
+from django.utils.translation import ugettext_lazy as _
+
+
+class AppConfig(django.apps.AppConfig):
+ name = 'combo.apps.kb'
+ verbose_name = _('Knowledge Base')
+
+
+default_app_config = 'combo.apps.kb.AppConfig'
diff --git a/combo/apps/kb/migrations/0001_initial.py b/combo/apps/kb/migrations/0001_initial.py
new file mode 100644
index 00000000..f84ff4bd
--- /dev/null
+++ b/combo/apps/kb/migrations/0001_initial.py
@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.18 on 2020-01-31 15:40
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+ initial = True
+
+ dependencies = [
+ ('data', '0042_page_creation_timestamp'),
+ ('auth', '0008_alter_user_username_max_length'),
+ ]
+
+ operations = [
+ migrations.CreateModel(
+ name='LatestPageUpdatesCell',
+ fields=[
+ ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+ ('placeholder', models.CharField(max_length=20)),
+ ('order', models.PositiveIntegerField()),
+ ('slug', models.SlugField(blank=True, verbose_name='Slug')),
+ ('extra_css_class', models.CharField(blank=True, max_length=100, verbose_name='Extra classes for CSS styling')),
+ ('public', models.BooleanField(default=True, verbose_name='Public')),
+ ('restricted_to_unlogged', models.BooleanField(default=False, verbose_name='Restrict to unlogged users')),
+ ('last_update_timestamp', models.DateTimeField(auto_now=True)),
+ ('limit', models.PositiveSmallIntegerField(blank=True, null=True, verbose_name='Maximum number of entries')),
+ ('groups', models.ManyToManyField(blank=True, to='auth.Group', verbose_name='Groups')),
+ ('page', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='data.Page')),
+ ('root_page', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='kb_latest_page_updates_cell_root_page', to='data.Page', verbose_name='Root Page')),
+ ],
+ options={
+ 'verbose_name': 'Latest Page Updates',
+ },
+ ),
+ ]
diff --git a/combo/apps/kb/migrations/__init__.py b/combo/apps/kb/migrations/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/combo/apps/kb/models.py b/combo/apps/kb/models.py
new file mode 100644
index 00000000..2714e063
--- /dev/null
+++ b/combo/apps/kb/models.py
@@ -0,0 +1,46 @@
+# combo - content management system
+# Copyright (C) 2020 Entr'ouvert
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .
+
+import datetime
+
+from django.db import models
+from django.utils import timezone
+from django.utils.translation import ugettext_lazy as _
+
+from combo.data.models import CellBase, Page
+from combo.data.library import register_cell_class
+
+@register_cell_class
+class LatestPageUpdatesCell(CellBase):
+ root_page = models.ForeignKey(
+ Page, on_delete=models.SET_NULL, null=True, blank=True,
+ verbose_name=_('Root Page'), related_name='kb_latest_page_updates_cell_root_page')
+ limit = models.PositiveSmallIntegerField(
+ _('Maximum number of entries'), null=True, blank=True)
+
+ template_name = 'combo/latest-page-updates-cell.html'
+
+ class Meta:
+ verbose_name = _('Latest Page Updates')
+
+ def get_cell_extra_context(self, context):
+ extra_context = super(LatestPageUpdatesCell, self).get_cell_extra_context(context)
+ if self.root_page:
+ pages = self.root_page.get_descendants_and_me()
+ else:
+ pages = Page.objects.all()
+ extra_context['pages'] = pages.order_by('-last_update_timestamp')[:self.limit]
+ return extra_context
diff --git a/combo/apps/kb/templates/combo/latest-page-updates-cell.html b/combo/apps/kb/templates/combo/latest-page-updates-cell.html
new file mode 100644
index 00000000..ae71080f
--- /dev/null
+++ b/combo/apps/kb/templates/combo/latest-page-updates-cell.html
@@ -0,0 +1,22 @@
+{% load i18n %}
+{% block cell-content %}
+
+{% endblock %}
diff --git a/combo/settings.py b/combo/settings.py
index 7f63e3f7..8d71475e 100644
--- a/combo/settings.py
+++ b/combo/settings.py
@@ -76,6 +76,7 @@ INSTALLED_APPS = (
'combo.apps.calendar',
'combo.apps.pwa',
'combo.apps.gallery',
+ 'combo.apps.kb',
'haystack',
'xstatic.pkg.josefinsans',
'xstatic.pkg.leaflet',
diff --git a/tests/test_kb.py b/tests/test_kb.py
new file mode 100644
index 00000000..4e126d72
--- /dev/null
+++ b/tests/test_kb.py
@@ -0,0 +1,137 @@
+# combo - content management system
+# Copyright (C) 2020 Entr'ouvert
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see .import pytest
+
+import pytest
+import re
+
+from combo.data.models import CellBase, Page, TextCell
+from combo.apps.kb.models import LatestPageUpdatesCell
+
+pytestmark = pytest.mark.django_db
+
+
+def login(app, username='admin', password='admin'):
+ login_page = app.get('/login/')
+ login_form = login_page.forms[0]
+ login_form['username'] = username
+ login_form['password'] = password
+ resp = login_form.submit()
+ assert resp.status_int == 302
+ return app
+
+
+@pytest.mark.freeze_time('2020-01-01')
+def test_manage_updated_pages_cell(app, admin_user):
+ page = Page(title='example page', slug='example-page')
+ page.save()
+ app = login(app)
+ resp = app.get('/manage/pages/%s/' % page.id, status=200)
+
+ optgroup = resp.html.find('optgroup', attrs={'label': 'Knowledge Base'})
+ add_cell_url = optgroup.findChild().attrs['data-add-url']
+ assert 'kb_latestpageupdatescell' in add_cell_url
+ resp = app.get(add_cell_url, status=302)
+ resp = resp.follow()
+ cells = CellBase.get_cells(page_id=page.id)
+ assert ('data-cell-reference="%s"' % cells[0].get_reference()) in resp.text
+ resp = resp.forms[0].submit()
+ assert resp.status_int == 302
+
+ resp = app.get('/example-page/', status=200)
+ div = resp.html.find('div', attrs={'class': 'latest-page-updates-cell'})
+ assert 'on Jan. 1, 2020' in div.findChild('time').text
+
+def test_updated_pages_cell_new_page(freezer):
+ freezer.move_to('2020-01-01')
+ page = Page(title='example page', slug='example-page')
+ page.save()
+ cell = LatestPageUpdatesCell(page=page, order=0)
+ cell.save()
+ ctx = {}
+ assert 'on Jan. 1, 2020' in cell.render(ctx)
+ assert page.snapshot is None
+ assert '(new page)' in cell.render(ctx)
+
+ freezer.move_to('2020-01-08')
+ assert '(new page)' not in cell.render(ctx)
+
+def test_updated_pages_cell_limit(freezer):
+ for number in range(1, 4):
+ page = Page(title='page %s' % number, slug='page-%i' % number)
+ page.save()
+ cell = LatestPageUpdatesCell(page=page, order=0)
+ cell.save()
+ ctx = {}
+ assert cell.render(ctx).count('