Re: [openstreetmap/openstreetmap-website] XML generation: nodes, ways, relations, map controller → view (#2223)

[mmd]

mmd-osm commented on this pull request.



> @@ -0,0 +1,8 @@
+xml.instruct!
+
+xml.osm(OSM::API.new.xml_root_attributes) do |osm|
+  osm << (render(:partial => "bounds", :object => @bounds) || "")
+  osm << (render(@nodes) || "")
+  osm << (render(@ways) || "")
+  osm << (render(@relations) || "")

That’s a logical or operator. If render returns nil, an empty string is added to the result as a fallback. See https://github.com/openstreetmap/openstreetmap-website/pull/2223#issuecomment-506019631

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