create new ChangeSet API

src/c3nav/editor/models/changedobject.py

@@ -1,4 +1,5 @@
 import typing
+from collections import OrderedDict
 from itertools import chain
 
 from django.contrib.contenttypes.models import ContentType
@@ -284,3 +285,14 @@ class ChangedObject(models.Model):
 
     def __repr__(self):
         return '<ChangedObject #%s on ChangeSet #%s>' % (str(self.pk), str(self.changeset_id))
+
+    def serialize(self):
+        return OrderedDict((
+            ('type', self.model_class.__name__.lower()),
+            ('is_created', self.is_created),
+            ('is_deleted', self.deleted),
+            ('pk', self.obj_pk),
+            ('updated_fields', self.updated_fields),
+            ('m2m_added', self.m2m_added),
+            ('m2m_removed', self.m2m_removed),
+        ))

src/c3nav/editor/models/changeset.py

@@ -74,6 +74,8 @@ class ChangeSet(models.Model):
         """
         if request.user.is_authenticated:
             return ChangeSet.objects.filter(author=request.user)
+        elif 'changeset' in request.session:
+            return ChangeSet.objects.filter(pk=request.session['changeset'])
         return ChangeSet.objects.none()
 
     @classmethod
@@ -447,7 +449,18 @@ class ChangeSet(models.Model):
         return OrderedDict((
             ('id', self.pk),
             ('author', self.author_id),
+            ('state', self.state),
+            ('assigned_to', self.assigned_to_id),
+            ('changed_objects_count', self.changed_objects_count),
             ('created', None if self.created is None else self.created.isoformat()),
+            ('last_change', None if self.last_change is None else self.last_change.datetime.isoformat()),
+            ('last_update', None if self.last_update is None else self.last_update.datetime.isoformat()),
+            ('last_state_update', (None if self.last_state_update is None else
+                                   self.last_state_update.datetime.isoformat())),
+            ('last_state_update_user', (None if self.last_state_update is None else
+                                        self.last_state_update.user_id)),
+            ('last_state_update_comment', (None if self.last_state_update is None else
+                                           self.last_state_update.comment)),
         ))
 
     def save(self, *args, **kwargs):

src/c3nav/editor/models/changesetupdate.py

@@ -1,3 +1,5 @@
+from collections import OrderedDict
+
 from django.conf import settings
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
@@ -25,3 +27,10 @@ class ChangeSetUpdate(models.Model):
 
     def __repr__(self):
         return '<Update #%s on ChangeSet #%s>' % (str(self.pk), str(self.changeset_id))
+
+    def serialize_tiny(self):
+        return OrderedDict((
+            ('datetime', self.datetime.isoformat()),
+            ('comment', self.comment),
+            ('user', self.user_id),
+        ))