manager: add preliminary page export to json (#6197)

combo/manager/templates/combo/page_view.html

@@ -4,6 +4,7 @@
 
 {% block appbar %}
 <h2>Page - {{ object.title }}</h2>
+<a href="{% url 'combo-manager-page-export' pk=object.id %}">export</a>
 <a rel="popup" href="{% url 'combo-manager-page-edit' pk=object.id %}">edit</a>
 {% endblock %}
 

combo/manager/urls.py

@@ -27,6 +27,8 @@ urlpatterns = patterns('combo.views',
             name='combo-manager-page-view'),
         url(r'^pages/(?P<pk>\w+)/edit$', views.page_edit,
             name='combo-manager-page-edit'),
+        url(r'^pages/(?P<pk>\w+)/export$', views.page_export,
+            name='combo-manager-page-export'),
         url(r'^pages/(?P<page_pk>\w+)/add-cell-to-(?P<ph_key>\w+)/(?P<cell_type>\w+)/(?P<variant>[\w-]+)/$',
             views.page_add_cell,
             name='combo-manager-page-add-cell'),

combo/manager/views.py

@@ -14,8 +14,11 @@
 # 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
+
 from django.conf import settings
 from django.contrib.contenttypes.models import ContentType
+from django.core import serializers
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.urlresolvers import reverse
 from django.forms import models as model_forms
@@ -106,6 +109,19 @@ class PageView(DetailView):
 page_view = requires_csrf_token(PageView.as_view())
 
 
+class PageExportView(DetailView):
+    model = Page
+
+    def render_to_response(self, context, **response_kwargs):
+        response = HttpResponse(content_type='application/json')
+        cells = CellBase.get_cells(page_id=self.object.id)
+        serialized_page = json.loads(serializers.serialize('json', [self.object]))[0]
+        serialized_page['cells'] = json.loads(serializers.serialize('json', cells))
+        json.dump(serialized_page, response, indent=2)
+        return response
+
+page_export = PageExportView.as_view()
+
 class PageAddCellView(RedirectView):
     def get_redirect_url(self, page_pk, cell_type, variant, ph_key):
         cell_class = ContentType.objects.get(id=cell_type).model_class()