Module:Archive URL counts/data

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-- Return a table of URL statistics to be accessed once per page using mw.loadData.
-- Data is pulled from Commons:Data:Wikipedia statistics/exturls.tab

local function last_update_get (description)
	return description:match ('%a%a%a %d%d? %d%d:%d%d:%d%d UTC %d%d%d%d');		-- extract and return the date substring; we'll prettify it later
end


local function makeData()
	local statistics = mw.ext.data.get('Wikipedia statistics/exturls.tab')
	local data = {}
	
	-- The schema fields dynamically map the column names to their index
	local map = {}
	for i, v in ipairs(statistics.schema.fields) do
		if i > 1 then
			map[v.name] = i - 1  -- skip 'site' column, names are lowercase
		end
	end

	-- Build the fast-lookup table
	-- Since there are 16 data columns (excluding 'site'), we unpack them all
	for _, v in ipairs(statistics.data) do
		data[v[1]] = { 
			v[2], v[3], v[4], v[5], v[6], v[7], v[8], v[9],
			v[10], v[11], v[12], v[13], v[14], v[15], v[16], v[17]
		}
	end
	
	return {
		data = data,
		map = map,
		last_update = last_update_get (statistics.description),					-- <statistics.description> holds the date of the table's last update; extract the date
	}
end

return makeData()