move Space.category into Location Groups

src/c3nav/mapdata/migrations/0022_remove_space_category.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-07-11 15:10
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+def convert_space_category_to_location_group(apps, schema_editor):
+    Space = apps.get_model('mapdata', 'Space')
+    LocationGroupCategory = apps.get_model('mapdata', 'LocationGroupCategory')
+    category = LocationGroupCategory.objects.create(name='spacecategory', titles={
+        'en': 'Space Category',
+        'de': 'Raumkategorie',
+    }, single=True, allow_levels=False, allow_spaces=True, allow_areas=False, allow_pois=False, priority=-1)
+    space_categories = (
+        ('stairs', {'en': 'Stairs', 'de': 'Treppe'}, '#dddddd'),
+        ('escalator', {'en': 'Escalator', 'de': 'Rolltreppe'}, '#bbbbbb'),
+        ('elevator', {'en': 'Elevator', 'de': 'Aufzug'}, '#00ffff')
+    )
+    for i, (name, titles, color) in enumerate(space_categories):
+        group = category.groups.create(titles=titles, can_search=False, can_describe=False, color=color, priority=i+1)
+        group.spaces.set(Space.objects.filter(category=name))
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0021_auto_20170710_1916'),
+    ]
+
+    operations = [
+        migrations.RunPython(convert_space_category_to_location_group),
+        migrations.RemoveField(
+            model_name='space',
+            name='category',
+        ),
+    ]

src/c3nav/mapdata/models/geometry/level.py

@@ -55,7 +55,6 @@ class Space(SpecificLocation, LevelGeometryMixin, models.Model):
         ('elevator', _('elevator')),
     )
     geometry = GeometryField('polygon')
-    category = models.CharField(verbose_name=_('category'), choices=CATEGORIES, default='normal', max_length=16)
     outside = models.BooleanField(default=False, verbose_name=_('only outside of building'))
 
     class Meta:
@@ -70,16 +69,6 @@ class Space(SpecificLocation, LevelGeometryMixin, models.Model):
             result['public'] = self.public
         return result
 
-    def get_color(self, *args, **kwargs):
-        color = super().get_color(*args, **kwargs)
-        if not color:
-            color = {
-                'stairs': '#dddddd',
-                'escalator': '#bbbbbb',
-                'elevator': '#00ffff',
-            }.get(self.category)
-        return color
-
 
 class Door(LevelGeometryMixin, models.Model):
     """