Add park labels layer

layers/park/layer.sql

@@ -4,7 +4,7 @@
 CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int)
 RETURNS TABLE(osm_id bigint, geometry geometry, class text) AS $$
     SELECT osm_id, geometry,
-        COALESCE(NULLIF(leisure, ''), NULLIF(boundary, '')) AS class
+        COALESCE(NULLIF(boundary, ''), NULLIF(leisure, '')) AS class
         FROM (
         -- etldoc: osm_park_polygon_gen8 -> layer_park:z6
         SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank

layers/park/mapping.yaml

@@ -57,6 +57,17 @@ tables:
       type: id
     - name: geometry
       type: validated_geometry
+    - name: name
+      key: name
+      type: string
+    - name: name_en
+      key: name:en
+      type: string
+    - name: name_de
+      key: name:de
+      type: string
+    - name: tags
+      type: hstore_tags
     - name: landuse
       key: landuse
       type: string

layers/park/park.yaml

@@ -14,6 +14,7 @@ layer:
     geometry_field: geometry
     query: (SELECT geometry, class FROM layer_park(!bbox!, z(!scale_denominator!))) AS t
 schema:
+  - ./update_park_polygon.sql
   - ./layer.sql
 datasources:
   - type: imposm3

layers/park/update_park_polygon.sql

@@ -0,0 +1,131 @@
+ALTER TABLE osm_park_polygon ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen1 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen2 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen3 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen4 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen5 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen6 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen7 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+ALTER TABLE osm_park_polygon_gen8 ADD COLUMN IF NOT EXISTS geometry_point geometry;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen1;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen2;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen3;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen4;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen5;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen6;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen7;
+DROP TRIGGER IF EXISTS update_row ON osm_park_polygon_gen8;
+
+-- etldoc:  osm_park_polygon ->  osm_park_polygon
+-- etldoc:  osm_park_polygon_gen1 ->  osm_park_polygon_gen1
+-- etldoc:  osm_park_polygon_gen2 ->  osm_park_polygon_gen2
+-- etldoc:  osm_park_polygon_gen3 ->  osm_park_polygon_gen3
+-- etldoc:  osm_park_polygon_gen4 ->  osm_park_polygon_gen4
+-- etldoc:  osm_park_polygon_gen5 ->  osm_park_polygon_gen5
+-- etldoc:  osm_park_polygon_gen6 ->  osm_park_polygon_gen6
+-- etldoc:  osm_park_polygon_gen7 ->  osm_park_polygon_gen7
+-- etldoc:  osm_park_polygon_gen8 ->  osm_park_polygon_gen8
+CREATE OR REPLACE FUNCTION update_osm_park_polygon() RETURNS VOID AS $$
+BEGIN
+  UPDATE osm_park_polygon
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen1
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen2
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen3
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen4
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen5
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen6
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen7
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+  UPDATE osm_park_polygon_gen8
+  SET tags = update_tags(tags, geometry),
+      geometry_point = st_centroid(geometry);
+
+END;
+$$ LANGUAGE plpgsql;
+
+SELECT update_osm_park_polygon();
+
+
+CREATE OR REPLACE FUNCTION update_osm_park_polygon_row()
+  RETURNS TRIGGER
+AS
+$BODY$
+BEGIN
+  NEW.tags = update_tags(NEW.tags, NEW.geometry);
+  NEW.geometry_point = NEW.st_centroid(geometry);
+  RETURN NEW;
+END;
+$BODY$
+LANGUAGE plpgsql;
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen1
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen2
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen3
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen4
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen5
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen6
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen7
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+CREATE TRIGGER update_row
+BEFORE INSERT OR UPDATE ON osm_park_polygon_gen8
+FOR EACH ROW
+EXECUTE PROCEDURE update_osm_park_polygon_row();
+
+
+