X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/33a65a90c9d0e2ab121e1da9c3efedaf9e6a9789..22bef89d1a97bf8206a951cc777061792a868b02:/lib/quad_tile.rb

diff --git a/lib/quad_tile.rb b/lib/quad_tile.rb
index cb1b5a06e..1f7e6e501 100644
--- a/lib/quad_tile.rb
+++ b/lib/quad_tile.rb
@@ -39,9 +39,28 @@ module QuadTile
 
       return t
     end
+
+    def self.iterate_tiles_for_area(minlat, minlon, maxlat, maxlon)
+      tiles = tiles_for_area(minlat, minlon, maxlat, maxlon)
+      first = last = nil
+
+      tiles.sort.each do |tile|
+        if last.nil?
+          first = last = tile
+        elsif tile == last + 1
+          last = tile
+        else
+          yield first, last
+
+          first = last = tile
+        end
+      end
+
+      yield first, last unless last.nil?
+    end
   end
 
-  def self.sql_for_area(minlat, minlon, maxlat, maxlon)
+  def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix)
     sql = Array.new
     single = Array.new
 
@@ -49,33 +68,14 @@ module QuadTile
       if first == last
         single.push(first)
       else
-        sql.push("tile BETWEEN #{first} AND #{last}")
+        sql.push("#{prefix}tile BETWEEN #{first} AND #{last}")
       end
     end
 
-    sql.push("tile IN (#{single.join(',')})") if single.size > 0
+    sql.push("#{prefix}tile IN (#{single.join(',')})") if single.size > 0
 
     return "( " + sql.join(" OR ") + " )"
   end
 
-  def self.iterate_tiles_for_area(minlat, minlon, maxlat, maxlon)
-    tiles = tiles_for_area(minlat, minlon, maxlat, maxlon)
-    first = last = nil
-
-    tiles.sort.each do |tile|
-      if last.nil?
-        first = last = tile
-      elsif tile == last + 1
-        last = tile
-      else
-        yield first, last
-
-        first = last = tile
-      end
-    end
-
-    yield first, last unless last.nil?
-  end
-
   private_class_method :tile_for_xy, :iterate_tiles_for_area
 end