Add class to divisions schema

counterexamples/divisions/division/bad-class.yml

@@ -0,0 +1,18 @@
+---
+id: counterexample:division:bad-class
+type: Feature
+geometry:
+  type: Polygon
+  coordinates: [0, 1]
+properties:
+  theme: divisions
+  type: division
+  version: 0
+  subtype: country
+  class: mammalia
+  division_id: counterexample:division:some-class
+  names:
+    primary: A division area with an invalid class property.
+  country: ZZ
+  ext_expected_errors:
+    - "value must be one of 'megacity', 'city', 'town', 'village', 'hamlet'"

examples/divisions/division/class.yaml

@@ -0,0 +1,30 @@
+---
+id: example:division:locality:dk
+type: Feature
+geometry:
+  type: Point
+  coordinates: [12.0819247, 55.6433478]
+properties:
+  theme: divisions
+  type: division
+  version: 0
+  subtype: locality
+  local_type:
+    en: city
+  names:
+    primary: Roskilde
+  sources:
+    - property: ""
+      dataset: OpenStreetMap
+      record_id: N21040334
+  country: DK
+  hierarchies:
+    - - division_id: example:division:country:dk
+        subtype: country
+        name: Denmark
+  capital_of_divisions:
+    - division_id: example:division:country:dk
+      subtype: country
+  parent_division_id: example:division:country:dk
+  population: 50781
+  class: city

schema/divisions/division.yaml

@@ -32,6 +32,25 @@ properties:     # JSON Schema: Top-level object properties.
           required: [names, subtype, country, hierarchies, parent_division_id]
     properties: # JSON Schema: properties within GeoJSON top-level object 'properties' property
       subtype: { "$ref": "./defs.yaml#/$defs/propertyDefinitions/placetype" }
+      class:
+        type: string
+        enum:
+          - megacity      #A extensive, large human settlement.
+                          #Example: Tokyo, Japan.
+
+          - city          #A relatively large, permanent human settlement.
+                          #Example: Guadalajara, Mexico.
+
+          - town          #A medium-sized human settlement that is smaller than a city,
+                          #but larger than a village.
+                          #Example: Walldürn, Germany.
+
+          - village       #A smaller human settlement that is smaller than a town,
+                          #but larger than a hamlet.
+                          #Example: Wadi El Karm, Lebanon.
+
+          - hamlet        #A small, isolated human settlement in a rural area
+                          #Example: Tjarnabyggð, Iceland.
       local_type:
         description:
           Local name for the subtype property, optionally localized.