rename and refactor mapdata models

src/c3nav/editor/forms.py

@@ -100,6 +100,6 @@ def create_editor_form(mapitemtype):
 
 
 def create_editor_forms():
-    from c3nav.mapdata.models.base import MAPITEM_TYPES
-    for mapitemtype in MAPITEM_TYPES.values():
+    from c3nav.mapdata.models.base import FEATURE_TYPES
+    for mapitemtype in FEATURE_TYPES.values():
         create_editor_form(mapitemtype)

src/c3nav/editor/views.py

@@ -5,7 +5,7 @@ from django.shortcuts import get_object_or_404, redirect, render
 
 from c3nav.access.apply import can_access, filter_queryset_by_access
 from c3nav.mapdata.models import AreaLocation
-from c3nav.mapdata.models.base import MAPITEM_TYPES
+from c3nav.mapdata.models.base import FEATURE_TYPES
 
 
 def list_mapitemtypes(request, level):
@@ -26,13 +26,13 @@ def list_mapitemtypes(request, level):
                 'title': mapitemtype._meta.verbose_name_plural,
                 'has_level': hasattr(mapitemtype, 'level') or hasattr(mapitemtype, 'levels'),
                 'count': get_item_count(mapitemtype),
-            } for name, mapitemtype in MAPITEM_TYPES.items()
+            } for name, mapitemtype in FEATURE_TYPES.items()
         ],
     })
 
 
 def list_mapitems(request, mapitem_type, level=None):
-    mapitemtype = MAPITEM_TYPES.get(mapitem_type)
+    mapitemtype = FEATURE_TYPES.get(mapitem_type)
     if mapitemtype is None:
         raise Http404('Unknown mapitemtype.')
 
@@ -68,7 +68,7 @@ def list_mapitems(request, mapitem_type, level=None):
 
 
 def edit_mapitem(request, mapitem_type, name=None):
-    mapitemtype = MAPITEM_TYPES.get(mapitem_type)
+    mapitemtype = FEATURE_TYPES.get(mapitem_type)
     if mapitemtype is None:
         raise Http404()
 

src/c3nav/mapdata/api.py

@@ -10,7 +10,7 @@ from rest_framework.viewsets import ReadOnlyModelViewSet, ViewSet
 
 from c3nav.access.apply import filter_arealocations_by_access, filter_queryset_by_access
 from c3nav.mapdata.lastupdate import get_last_mapdata_update
-from c3nav.mapdata.models import GEOMETRY_MAPITEM_TYPES, AreaLocation, Level, LocationGroup, Source
+from c3nav.mapdata.models import GEOMETRY_FEATURE_TYPES, AreaLocation, Level, LocationGroup, Source
 from c3nav.mapdata.models.geometry import Stair
 from c3nav.mapdata.search import get_location
 from c3nav.mapdata.serializers.main import LevelSerializer, SourceSerializer
@@ -29,7 +29,7 @@ class GeometryTypeViewSet(ViewSet):
                 ('name', name),
                 ('title', str(mapitemtype._meta.verbose_name)),
                 ('title_plural', str(mapitemtype._meta.verbose_name_plural)),
-            )) for name, mapitemtype in GEOMETRY_MAPITEM_TYPES.items()
+            )) for name, mapitemtype in GEOMETRY_FEATURE_TYPES.items()
         ])
 
 
@@ -40,7 +40,7 @@ class GeometryViewSet(ViewSet):
     """
     def list(self, request):
         types = set(request.GET.getlist('type'))
-        valid_types = list(GEOMETRY_MAPITEM_TYPES.keys())
+        valid_types = list(GEOMETRY_FEATURE_TYPES.keys())
         if not types:
             types = valid_types
         else:
@@ -68,7 +68,7 @@ class GeometryViewSet(ViewSet):
     def _list(self, request, types, level):
         results = []
         for t in types:
-            mapitemtype = GEOMETRY_MAPITEM_TYPES[t]
+            mapitemtype = GEOMETRY_FEATURE_TYPES[t]
             queryset = mapitemtype.objects.all()
             if level:
                 if hasattr(mapitemtype, 'level'):

src/c3nav/mapdata/models/__init__.py

@@ -1,5 +1,6 @@
 from .level import Level  # noqa
 from .source import Source  # noqa
 from .collections import Elevator  # noqa
-from .geometry import GeometryMapItemWithLevel, GEOMETRY_MAPITEM_TYPES  # noqa
+from .geometry import LevelFeature  # noqa
+from c3nav.mapdata.models.base import GEOMETRY_FEATURE_TYPES
 from .locations import AreaLocation, LocationGroup  # noqa

src/c3nav/mapdata/models/base.py

@@ -4,21 +4,34 @@ from django.db import models
 from django.db.models.base import ModelBase
 from django.utils.translation import ugettext_lazy as _
 from django.utils.translation import get_language
+from shapely.geometry import mapping, Point
 
+from c3nav.mapdata.fields import GeometryField
 from c3nav.mapdata.lastupdate import set_last_mapdata_update
+from c3nav.mapdata.utils.json import format_geojson
 
-MAPITEM_TYPES = OrderedDict()
+FEATURE_TYPES = OrderedDict()
+GEOMETRY_FEATURE_TYPES = OrderedDict()
+LEVEL_FEATURE_TYPES = OrderedDict()
+AREA_FEATURE_TYPES = OrderedDict()
 
 
-class MapItemMeta(ModelBase):
+class FeatureBase(ModelBase):
     def __new__(mcs, name, bases, attrs):
         cls = super().__new__(mcs, name, bases, attrs)
         if not cls._meta.abstract and name != 'Source':
-            MAPITEM_TYPES[name.lower()] = cls
+            FEATURE_TYPES[name.lower()] = cls
+            if hasattr(cls, 'geometry'):
+                GEOMETRY_FEATURE_TYPES[name.lower()] = cls
+            if hasattr(cls, 'level'):
+                LEVEL_FEATURE_TYPES[name.lower()] = cls
+            if hasattr(cls, 'area'):
+                AREA_FEATURE_TYPES[name.lower()] = cls
+
         return cls
 
 
-class MapItem(models.Model, metaclass=MapItemMeta):
+class Feature(models.Model, metaclass=FeatureBase):
     name = models.SlugField(_('Name'), unique=True, max_length=50)
 
     EditorForm = None
@@ -42,3 +55,34 @@ class MapItem(models.Model, metaclass=MapItemMeta):
 
     class Meta:
         abstract = True
+
+
+class GeometryFeature(Feature):
+    """
+    A map feature with a geometry
+    """
+    geometry = GeometryField()
+
+    geomtype = None
+
+    class Meta:
+        abstract = True
+
+    def get_geojson_properties(self):
+        return OrderedDict((
+            ('type', self.__class__.__name__.lower()),
+            ('name', self.name),
+        ))
+
+    def to_geojson(self):
+        return OrderedDict((
+            ('type', 'Feature'),
+            ('properties', self.get_geojson_properties()),
+            ('geometry', format_geojson(mapping(self.geometry), round=False)),
+        ))
+
+    def get_shadow_geojson(self):
+        return None
+
+    def contains(self, x, y):
+        return self.geometry.contains(Point(x, y))

src/c3nav/mapdata/models/collections.py

@@ -1,9 +1,9 @@
 from django.utils.translation import ugettext_lazy as _
 
-from c3nav.mapdata.models.base import MapItem
+from c3nav.mapdata.models.base import Feature
 
 
-class Elevator(MapItem):
+class Elevator(Feature):
     """
     An elevator.
     """

src/c3nav/mapdata/models/geometry.py

@@ -1,61 +1,18 @@
 from collections import OrderedDict
-
 from django.db import models
 from django.utils.functional import cached_property
 from django.utils.translation import ugettext_lazy as _
-from shapely.geometry import CAP_STYLE, JOIN_STYLE, Point
+from shapely.geometry import CAP_STYLE, JOIN_STYLE
 from shapely.geometry.geo import mapping
 
-from c3nav.mapdata.fields import GeometryField
 from c3nav.mapdata.models import Elevator
-from c3nav.mapdata.models.base import MapItem, MapItemMeta
+from c3nav.mapdata.models.base import GeometryFeature
 from c3nav.mapdata.utils.json import format_geojson
 
-GEOMETRY_MAPITEM_TYPES = OrderedDict()
 
-
-class GeometryMapItemMeta(MapItemMeta):
-    def __new__(mcs, name, bases, attrs):
-        cls = super().__new__(mcs, name, bases, attrs)
-        if not cls._meta.abstract:
-            GEOMETRY_MAPITEM_TYPES[name.lower()] = cls
-        return cls
-
-
-class GeometryMapItem(MapItem, metaclass=GeometryMapItemMeta):
+class LevelFeature(GeometryFeature):
     """
-    A map feature
-    """
-    geometry = GeometryField()
-
-    geomtype = None
-
-    class Meta:
-        abstract = True
-
-    def get_geojson_properties(self):
-        return OrderedDict((
-            ('type', self.__class__.__name__.lower()),
-            ('name', self.name),
-        ))
-
-    def to_geojson(self):
-        return OrderedDict((
-            ('type', 'Feature'),
-            ('properties', self.get_geojson_properties()),
-            ('geometry', format_geojson(mapping(self.geometry), round=False)),
-        ))
-
-    def get_shadow_geojson(self):
-        return None
-
-    def contains(self, x, y):
-        return self.geometry.contains(Point(x, y))
-
-
-class GeometryMapItemWithLevel(GeometryMapItem):
-    """
-    A map feature
+    a map feature that has a geometry and belongs to a level
     """
     level = models.ForeignKey('mapdata.Level', on_delete=models.CASCADE, verbose_name=_('level'))
 
@@ -68,9 +25,9 @@ class GeometryMapItemWithLevel(GeometryMapItem):
         return result
 
 
-class GeometryMapItemWithArea(GeometryMapItem):
+class AreaFeature(GeometryFeature):
     """
-    A map feature
+    a map feature that has a geometry and belongs to an area
     """
     area = models.ForeignKey('mapdata.Area', on_delete=models.CASCADE, verbose_name=_('area'))
 
@@ -83,7 +40,7 @@ class GeometryMapItemWithArea(GeometryMapItem):
         return result
 
 
-class Building(GeometryMapItemWithLevel):
+class Building(LevelFeature):
     """
     The outline of a building on a specific level
     """
@@ -95,7 +52,7 @@ class Building(GeometryMapItemWithLevel):
         default_related_name = 'buildings'
 
 
-class Area(GeometryMapItemWithLevel):
+class Area(LevelFeature):
     """
     An accessible area. Shouldn't overlap.
     """
@@ -128,7 +85,7 @@ class Area(GeometryMapItemWithLevel):
         return result
 
 
-class StuffedArea(GeometryMapItemWithArea):
+class StuffedArea(AreaFeature):
     """
     A slow area with many tables or similar. Avoid it from routing by slowing it a bit down
     """
@@ -140,7 +97,7 @@ class StuffedArea(GeometryMapItemWithArea):
         default_related_name = 'stuffedareas'
 
 
-class Escalator(GeometryMapItemWithArea):
+class Escalator(AreaFeature):
     """
     An escalator area
     """
@@ -163,7 +120,7 @@ class Escalator(GeometryMapItemWithArea):
         return result
 
 
-class Stair(GeometryMapItemWithArea):
+class Stair(AreaFeature):
     """
     A stair
     """
@@ -197,7 +154,7 @@ class Stair(GeometryMapItemWithArea):
         ))
 
 
-class Obstacle(GeometryMapItemWithArea):
+class Obstacle(AreaFeature):
     """
     An obstacle
     """
@@ -218,7 +175,7 @@ class Obstacle(GeometryMapItemWithArea):
         return result
 
 
-class LineObstacle(GeometryMapItemWithArea):
+class LineObstacle(AreaFeature):
     """
     An obstacle that is a line with a specific width
     """
@@ -248,7 +205,7 @@ class LineObstacle(GeometryMapItemWithArea):
         return result
 
 
-class Door(GeometryMapItemWithLevel):
+class Door(LevelFeature):
     """
     A connection between two rooms
     """
@@ -260,7 +217,7 @@ class Door(GeometryMapItemWithLevel):
         default_related_name = 'doors'
 
 
-class Hole(GeometryMapItemWithLevel):
+class Hole(LevelFeature):
     """
     A hole in the ground of a room, e.g. for stairs.
     """
@@ -272,7 +229,7 @@ class Hole(GeometryMapItemWithLevel):
         default_related_name = 'holes'
 
 
-class ElevatorLevel(GeometryMapItemWithLevel):
+class ElevatorLevel(LevelFeature):
     """
     An elevator Level
     """

src/c3nav/mapdata/models/level.py

@@ -4,11 +4,11 @@ from django.utils.translation import ugettext_lazy as _
 from shapely.geometry import CAP_STYLE, JOIN_STYLE
 from shapely.ops import cascaded_union
 
-from c3nav.mapdata.models.base import MapItem
+from c3nav.mapdata.models.base import Feature
 from c3nav.mapdata.utils.geometry import assert_multilinestring, assert_multipolygon
 
 
-class Level(MapItem):
+class Level(Feature):
     """
     A map level (-1, 0, 1, 2…)
     """

src/c3nav/mapdata/models/locations.py

@@ -10,8 +10,8 @@ from django.utils.translation import ungettext_lazy
 from c3nav.mapdata.fields import JSONField, validate_bssid_lines
 from c3nav.mapdata.lastupdate import get_last_mapdata_update
 from c3nav.mapdata.models import Level
-from c3nav.mapdata.models.base import MapItem
-from c3nav.mapdata.models.geometry import GeometryMapItemWithLevel
+from c3nav.mapdata.models.base import Feature
+from c3nav.mapdata.models.geometry import LevelFeature
 
 
 class Location:
@@ -43,7 +43,7 @@ class LocationModelMixin(Location):
         return self._meta.verbose_name
 
 
-class LocationGroup(LocationModelMixin, MapItem):
+class LocationGroup(LocationModelMixin, Feature):
     titles = JSONField()
     can_search = models.BooleanField(default=True, verbose_name=_('can be searched'))
     can_describe = models.BooleanField(default=True, verbose_name=_('can be used to describe a position'))
@@ -99,7 +99,7 @@ class LocationGroup(LocationModelMixin, MapItem):
         return result
 
 
-class AreaLocation(LocationModelMixin, GeometryMapItemWithLevel):
+class AreaLocation(LocationModelMixin, LevelFeature):
     LOCATION_TYPES = (
         ('level', _('Level')),
         ('area', _('General Area')),

src/c3nav/mapdata/models/source.py

@@ -1,10 +1,10 @@
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
-from c3nav.mapdata.models.base import MapItem
+from c3nav.mapdata.models.base import Feature
 
 
-class Source(MapItem):
+class Source(Feature):
     """
     A map source, images of levels that can be useful as backgrounds for the map editor
     """