From 67be896e0a005a6c4b700d4c4a747dfe59783490 Mon Sep 17 00:00:00 2001
From: lukasmartinelli <me@lukasmartinelli.ch>
Date: Sun, 30 Oct 2016 10:44:21 +0100
Subject: [PATCH] Fallback to name for name_en

---
 layers/place/city.sql    | 8 ++++++--
 layers/place/country.sql | 4 ++--
 layers/place/state.sql   | 3 ++-
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/layers/place/city.sql b/layers/place/city.sql
index 5093eb66..75f74d03 100644
--- a/layers/place/city.sql
+++ b/layers/place/city.sql
@@ -1,13 +1,17 @@
 CREATE OR REPLACE FUNCTION layer_city(bbox geometry, zoom_level int, pixel_width numeric)
 RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class city_class, "rank" int) AS $$
-    SELECT osm_id, geometry, name, name_en, place, "rank"
+    SELECT osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en, place AS class, "rank"
     FROM osm_city_point
     WHERE geometry && bbox
       AND ((zoom_level = 2 AND "rank" = 1)
         OR (zoom_level BETWEEN 3 AND 7 AND "rank" <= zoom_level)
       )
     UNION ALL
-    SELECT osm_id, geometry, name, name_en, place, COALESCE("rank", gridrank + 10) FROM (
+    SELECT osm_id, geometry, name,
+        COALESCE(NULLIF(name_en, ''), name) AS name_en,
+        place AS class,
+        COALESCE("rank", gridrank + 10)
+    FROM (
       SELECT osm_id, geometry, name, name_en, place, "rank",
       row_number() OVER (
         PARTITION BY LabelGrid(geometry, 150 * pixel_width)
diff --git a/layers/place/country.sql b/layers/place/country.sql
index 82511b64..896e38e9 100644
--- a/layers/place/country.sql
+++ b/layers/place/country.sql
@@ -1,6 +1,6 @@
 CREATE OR REPLACE FUNCTION layer_country(bbox geometry, zoom_level int)
 RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, "rank" int) AS $$
-    SELECT osm_id, geometry, name, name_en, "rank" FROM osm_country_point
-    WHERE geometry && bbox AND "rank" <= zoom_level
+    SELECT osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en, "rank" FROM osm_country_point
+    WHERE geometry && bbox AND "rank" <= zoom_level AND name <> ''
     ORDER BY "rank" ASC, length(name) ASC;
 $$ LANGUAGE SQL IMMUTABLE;
diff --git a/layers/place/state.sql b/layers/place/state.sql
index 3ed1b923..d4ba508b 100644
--- a/layers/place/state.sql
+++ b/layers/place/state.sql
@@ -1,8 +1,9 @@
 CREATE OR REPLACE FUNCTION layer_state(bbox geometry, zoom_level int)
 RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, "rank" int) AS $$
-    SELECT osm_id, geometry, name, name_en, "rank"
+    SELECT osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en, "rank"
     FROM osm_state_point
     WHERE geometry && bbox AND
+          name <> '' AND
           ("rank" + 2 <= zoom_level) AND (
               zoom_level >= 5 OR
               is_in_country IN ('United Kingdom', 'USA', 'Россия', 'Brasil', 'China', 'India') OR