display grid cell for POIs

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

@@ -11,6 +11,7 @@ from django.utils.translation import ugettext_lazy as _
 from shapely.geometry import CAP_STYLE, JOIN_STYLE, mapping
 
 from c3nav.mapdata.fields import GeometryField, I18nField, JSONField
+from c3nav.mapdata.grid import grid
 from c3nav.mapdata.models import Space
 from c3nav.mapdata.models.base import SerializableMixin
 from c3nav.mapdata.models.geometry.base import GeometryMixin
@@ -231,6 +232,10 @@ class POI(SpaceGeometryMixin, SpecificLocation, models.Model):
             result['editor_url'] = reverse('editor.pois.edit', kwargs={'space': self.space_id, 'pk': self.pk})
         return result
 
+    @property
+    def grid_cell(self):
+        return grid.get_cell_for_point(self.x, self.y) or ''
+
     @property
     def x(self):
         return self.geometry.x

src/c3nav/mapdata/models/locations.py

@@ -115,6 +115,10 @@ class Location(LocationSlug, AccessRestrictionMixin, TitledMixin, models.Model):
     def subtitle(self):
         return ''
 
+    @property
+    def grid_cell(self):
+        return None
+
     def get_color(self, instance=None):
         # dont filter in the query here so prefetch_related works
         if instance is None:
@@ -167,7 +171,10 @@ class SpecificLocation(Location, models.Model):
     def subtitle(self):
         groups = tuple(self.groups.all() if 'groups' in getattr(self, '_prefetched_objects_cache', ()) else ())
         groups = tuple(group for group in groups if group.can_describe)
-        return groups[0].title if groups else self.__class__._meta.verbose_name
+        subtitle = groups[0].title if groups else self.__class__._meta.verbose_name
+        if self.grid_cell:
+            return '%s, %s' % (subtitle, self.grid_cell)
+        return subtitle
 
     @cached_property
     def order(self):

src/c3nav/mapdata/utils/locations.py

@@ -366,10 +366,14 @@ class CustomLocation:
     def near_poi(self):
         return self.description.near_poi
 
+    @cached_property
+    def grid_cell(self):
+        return grid.get_cell_for_point(self.x, self.y) or ''
+
     @cached_property
     def title_subtitle(self):
-        grid_cell = grid.get_cell_for_point(self.x, self.y)
+        grid_cell = self.grid_cell
-        level_subtitle = self.level.title if grid_cell is None else ','.join((grid_cell, str(self.level.title)))
+        level_subtitle = self.level.title if not grid_cell else ','.join((grid_cell, str(self.level.title)))
 
         title = _('In %(level)s') % {'level': self.level.title}
         if not self.space:
@@ -392,7 +396,7 @@ class CustomLocation:
             return _('In %(space)s') % {'space': self.space.title}, level_subtitle
 
         subtitle_segments = chain((grid_cell, ), subtitle, (self.space.title, self.level.title))
-        subtitle = ', '.join(str(title) for title in subtitle_segments if title is not None)
+        subtitle = ', '.join(str(title) for title in subtitle_segments if title)
         return title, subtitle
 
     @cached_property