general: add new export_site management command (#13540)

combo/data/management/commands/export_site.py

@@ -0,0 +1,32 @@
+# combo - content management system
+# Copyright (C) 2016  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 <http://www.gnu.org/licenses/>.
+
+import json
+import sys
+
+from django.core.management.base import BaseCommand
+
+from combo.data.models import Page
+
+class Command(BaseCommand):
+    args = ['...']
+
+    def handle(self, json_file='-', *args, **kwargs):
+        if json_file == '-':
+            output = sys.stdout
+        else:
+            output = open(json_file, 'w')
+        json.dump(Page.export_all_for_json(), output, indent=2)

combo/data/models.py

@@ -250,6 +250,11 @@ class Page(models.Model):
                 page.parent = Page.objects.get(slug=json_page.get('parent_slug'))
                 page.save()
 
+    @classmethod
+    def export_all_for_json(cls):
+        ordered_pages = Page.get_as_reordered_flat_hierarchy(cls.objects.all())
+        return [x.get_serialized_page() for x in ordered_pages]
+
 
 class CellMeta(MediaDefiningClass, ModelBase):
     pass

combo/manager/views.py

@@ -58,9 +58,7 @@ class SiteExportView(ListView):
 
     def render_to_response(self, context, **response_kwargs):
         response = HttpResponse(content_type='application/json')
-        ordered_pages = Page.get_as_reordered_flat_hierarchy(self.object_list)
+        json.dump(Page.export_all_for_json(), response, indent=2)
-        json.dump([x.get_serialized_page() for x in ordered_pages],
-                response, indent=2)
         return response
 
 site_export = SiteExportView.as_view()

tests/test_pages.py

@@ -1,7 +1,13 @@
+from StringIO import StringIO
+import os
 import pytest
+import sys
 
+from django.conf import settings
 from django.contrib.auth.models import User, Group
 from combo.data.models import Page, CellBase, TextCell, LinkCell
+from combo.data.management.commands.import_site import Command as ImportSiteCommand
+from combo.data.management.commands.export_site import Command as ExportSiteCommand
 
 pytestmark = pytest.mark.django_db
 
@@ -197,3 +203,45 @@ def test_next_previous():
     page3.public = False
     page3.save()
     assert page.get_next_page(None) is None
+
+def test_import_export_management_commands():
+    page = Page(title=u'foo', slug='foo', order=0)
+    page.save()
+
+    cell = TextCell(page=page, text='foo', order=0)
+    cell.save()
+
+    page2 = Page(title=u'bar', slug='bar', order=1, parent=page)
+    page2.save()
+
+    cell = TextCell(page=page2, text='bar', order=0)
+    cell.save()
+
+    export_filename = os.path.join(settings.MEDIA_ROOT, 'site-export.json')
+    if os.path.exists(export_filename):
+        os.unlink(export_filename)
+
+    cmd = ExportSiteCommand()
+    cmd.handle(export_filename)
+    assert os.path.exists(export_filename)
+
+    stdout = sys.stdout
+    try:
+        sys.stdout = StringIO()
+        cmd.handle('-')
+        assert sys.stdout.getvalue() == open(export_filename).read()
+    finally:
+        sys.stdout = stdout
+
+    Page.objects.all().delete()
+
+    cmd = ImportSiteCommand()
+    cmd.handle(export_filename)
+
+    new_page_1 = Page.objects.all().order_by('order')[0]
+    new_page_2 = Page.objects.all().order_by('order')[1]
+    assert new_page_1.title == 'foo'
+    assert new_page_2.title == 'bar'
+    assert len(CellBase.get_cells(page_id=new_page_1.id)) == 1
+    assert isinstance(CellBase.get_cells(page_id=new_page_1.id)[0], TextCell)
+    assert CellBase.get_cells(page_id=new_page_1.id)[0].text == 'foo'