add MapUpdate

src/c3nav/editor/migrations/0017_changeset_map_update.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-07-05 20:03
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0014_mapupdate'),
+        ('editor', '0016_auto_20170705_1938'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='changeset',
+            name='map_update',
+            field=models.OneToOneField(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='changeset', to='mapdata.MapUpdate', verbose_name='map update'),
+        ),
+    ]

src/c3nav/editor/models/changeset.py

@@ -13,7 +13,7 @@ from rest_framework.exceptions import PermissionDenied
 from c3nav.editor.models.changedobject import ChangedObject
 from c3nav.editor.utils import is_created_pk
 from c3nav.editor.wrappers import ModelWrapper
-from c3nav.mapdata.models import LocationSlug
+from c3nav.mapdata.models import LocationSlug, MapUpdate
 from c3nav.mapdata.models.locations import LocationRedirect
 from c3nav.mapdata.utils.models import get_submodels
 
@@ -41,6 +41,7 @@ class ChangeSet(models.Model):
     description = models.TextField(max_length=1000, default='', verbose_name=_('Description'))
     assigned_to = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, on_delete=models.PROTECT,
                                     related_name='assigned_changesets', verbose_name=_('assigned to'))
+    map_update = models.OneToOneField(MapUpdate, null=True, related_name='changeset', verbose_name=_('map update'))
 
     class Meta:
         verbose_name = _('Change Set')
@@ -366,9 +367,11 @@ class ChangeSet(models.Model):
 
     def apply(self, user):
         update = self.updates.create(user=user, state='applied')
+        map_update = MapUpdate.objects.create(user=user, type='changeset')
         self.state = 'applied'
         self.last_state_update = update
         self.last_update = update
+        self.map_update = map_update
         self.save()
 
     def activate(self, request):
@@ -425,6 +428,8 @@ class ChangeSet(models.Model):
         ))
 
     def save(self, *args, **kwargs):
+        if self.state == 'applied':
+            raise TypeError('Applied change sets can not be edited.')
         super().save(*args, **kwargs)
         if self._request is not None:
             self.activate(self._request)

src/c3nav/mapdata/migrations/0014_mapupdate.py

@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-07-05 20:03
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+def create_initial_mapupdate(apps, schema_editor):
+    MapUpdate = apps.get_model('mapdata', 'MapUpdate')
+    MapUpdate.objects.create(type='initial')
+
+def delete_initial_mapupdate(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('mapdata', '0013_auto_20170618_1934'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='MapUpdate',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('datetime', models.DateTimeField(auto_now_add=True, db_index=True)),
+                ('type', models.CharField(max_length=32)),
+                ('user', models.ForeignKey(null=True, on_delete=django.db.models.deletion.PROTECT, related_name='mapupdates', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name': 'Map update',
+                'verbose_name_plural': 'Map updates',
+                'get_latest_by': 'datetime',
+                'default_related_name': 'mapupdates',
+            },
+        ),
+        migrations.RunPython(create_initial_mapupdate, delete_initial_mapupdate),
+    ]

src/c3nav/mapdata/models/__init__.py

@@ -1,5 +1,6 @@
-from .level import Level  # noqa
-from .source import Source  # noqa
-from c3nav.mapdata.models.geometry.level import Building, Space, Door   # noqa
+from c3nav.mapdata.models.geometry.level import Building, Space, Door  # noqa
 from c3nav.mapdata.models.geometry.space import Area, Stair, Obstacle, LineObstacle, Hole  # noqa
-from .locations import Location, LocationSlug, LocationGroup  # noqa
+from c3nav.mapdata.models.level import Level  # noqa
+from c3nav.mapdata.models.locations import Location, LocationSlug, LocationGroup  # noqa
+from c3nav.mapdata.models.source import Source  # noqa
+from c3nav.mapdata.models.update import MapUpdate  # noqa

src/c3nav/mapdata/models/update.py

@@ -0,0 +1,22 @@
+from django.conf import settings
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+
+class MapUpdate(models.Model):
+    """
+    A map update. created whenever mapdata is changed.
+    """
+    datetime = models.DateTimeField(auto_now_add=True, db_index=True)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, on_delete=models.PROTECT)
+    type = models.CharField(max_length=32)
+
+    class Meta:
+        verbose_name = _('Map update')
+        verbose_name_plural = _('Map updates')
+        default_related_name = 'mapupdates'
+        get_latest_by = 'datetime'
+
+    def save(self, **kwargs):
+        if self.pk is not None:
+            raise TypeError