Module:Sandbox/Aude/NRHP

local p = {}

local function makeNRHPReferenceLink( number )
	return 'http://focus.nps.gov/AssetDetail/NRIS/' .. number
end

function p.getNRHPReference(frame)
	local entity = mw.wikibase.getEntity()
	
	if entity then
		local claims = entity['claims']['P649']
		
		for idx in pairs(claims) do
			local snak = claims[idx].mainsnak;
			return makeNRHPReferenceLink( mw.wikibase.renderSnak( snak ) )
		end
	end
	
	return 'no entity'
end

return p