do not save names when falling back to addresses

[nominatim.git] / lib-lua / themes / nominatim / init.lua

diff --git a/lib-lua/themes/nominatim/init.lua b/lib-lua/themes/nominatim/init.lua
index f8706bb92b6c285809091902df85fe8174c50eb6..dacaaae8ecce047436202b9920cd96ee54da27a0 100644 (file)
--- a/lib-lua/themes/nominatim/init.lua
+++ b/lib-lua/themes/nominatim/init.lua
@@ -40,12 +40,6 @@ if type(themepark) ~= 'table' then
     themepark = nil
 end
 
--- tables required for taginfo
-module.TAGINFO_MAIN = {keys = {}, delete_tags = {}}
-module.TAGINFO_NAME_KEYS = {}
-module.TAGINFO_ADDRESS_KEYS = {}
-
-
 -- The single place table.
 local place_table_definition = {
     name = "place",
@@ -65,6 +59,8 @@ local place_table_definition = {
 }
 
 local insert_row
+local script_path = debug.getinfo(1, "S").source:match("@?(.*/)")
+local PRESETS = loadfile(script_path .. 'presets.lua')()
 
 if themepark then
     themepark:add_table(place_table_definition)
@@ -138,6 +134,22 @@ function PlaceTransform.named_with_key(place, k)
     end
 end
 
+-- Special transform used with address fallbacks: ignore all names
+-- except for those marked as being part of the address.
+local function address_fallback(place)
+    if next(place.names) == nil or NAMES.house == nil then
+        return place
+    end
+
+    local names = {}
+    for k, v in pairs(place.names) do
+        if NAME_FILTER(k, v) == 'house' then
+            names[k] = v
+        end
+    end
+    return place:clone{names=names}
+end
+
 --------- Built-in extratags transformation functions ---------------
 
 local function default_extratags_filter(p, k)
@@ -383,7 +395,7 @@ function Place:grab_name_parts(data)
                     self.has_name = true
                 elseif atype == 'house' then
                     self.has_name = true
-                    fallback = {'place', 'house', PlaceTransform.always}
+                    fallback = {'place', 'house', address_fallback}
                 end
             end
         end
@@ -640,7 +652,7 @@ function module.process_tags(o)
 
     -- address keys
     if o:grab_address_parts{groups=ADDRESS_FILTER} > 0 and fallback == nil then
-        fallback = {'place', 'house', PlaceTransform.always}
+        fallback = {'place', 'house', address_fallback}
     end
     if o.address.country ~= nil and #o.address.country ~= 2 then
         o.address['country'] = nil
@@ -687,12 +699,26 @@ end
 
 
 function module.ignore_keys(data)
+    if type(data) == 'string' then
+        local preset = data
+        data = PRESETS.IGNORE_KEYS[data]
+        if data == nil then
+            error('Unknown preset for ignored keys: ' .. preset)
+        end
+    end
     merge_filters_into_main('delete', data)
     add_pre_filter{delete = data}
 end
 
 
 function module.add_for_extratags(data)
+    if type(data) == 'string' then
+        local preset = data
+        data = PRESETS.EXTRATAGS[data] or PRESETS.IGNORE_KEYS[data]
+        if data == nil then
+            error('Unknown preset for extratags: ' .. preset)
+        end
+    end
     merge_filters_into_main('extra', data)
     add_pre_filter{extra = data}
 end
@@ -709,11 +735,25 @@ function module.set_main_tags(data)
             MAIN_KEYS[key] = nil
         end
     end
-    module.add_main_tags(data)
+    module.modify_main_tags(data)
 end
 
 
-function module.add_main_tags(data)
+function module.modify_main_tags(data)
+    if type(data) == 'string' then
+        local preset = data
+        if data:sub(1, 7) == 'street/' then
+            data = PRESETS.MAIN_TAGS_STREETS[data:sub(8)]
+        elseif data:sub(1, 4) == 'poi/' then
+            data = PRESETS.MAIN_TAGS_POIS(data:sub(5))
+        else
+            data = PRESETS.MAIN_TAGS[data]
+        end
+        if data == nil then
+            error('Unknown preset for main tags: ' .. preset)
+        end
+    end
+
     for k, v in pairs(data) do
         if MAIN_KEYS[k] == nil then
             MAIN_KEYS[k] = {}
@@ -736,6 +776,14 @@ end
 
 
 function module.modify_name_tags(data)
+    if type(data) == 'string' then
+        local preset = data
+        data = PRESETS.NAME_TAGS[data]
+        if data == nil then
+            error('Unknown preset for name keys: ' .. preset)
+        end
+    end
+
     for k,v in pairs(data) do
         if next(v) then
             NAMES[k] = v
@@ -764,6 +812,14 @@ end
 
 
 function module.modify_address_tags(data)
+    if type(data) == 'string' then
+        local preset = data
+        data = PRESETS.ADDRESS_TAGS[data]
+        if data == nil then
+            error('Unknown preset for address keys: ' .. preset)
+        end
+    end
+
     for k, v in pairs(data) do
         if k == 'postcode_fallback' then
             POSTCODE_FALLBACK = v
@@ -858,4 +914,9 @@ function module.set_relation_types(data)
     end
 end
 
+
+function module.get_taginfo()
+    return {main = MAIN_KEYS, name = NAMES, address = ADDRESS_TAGS}
+end
+
 return module