Module:Transclude random subpage/BHG-test

-- This module implements Template:Transclude random subpage. It is alpha software.

local p = {}

local mRandom = require('Module:Random') local currentTitle = mw.title.getCurrentTitle

-- tracking function added by BHG 29/04/2019 -- called as subPageTrackingCategories(pages, args.max) local function subPageTrackingCategories(pages, max) local retval = ""; local availableSubPageCount = 0; local i;	-- don't track DYK etc, only selected articles etc if (string.find(pages.subpage, "/[sS]elected") == -1) then return retval end -- no tracking unless we are in Portal namespace if (mw.title.getCurrentTitle.nsText ~= "Portal") then return "" end

-- limit checking to prevent Lua overload local myMaxCheck = 60 if tonumber(max) < myMaxCheck then myMaxCheck = tonumber(max) end for i=1,myMaxCheck do local aSubPage = mw.title.new(pages.subpage .. '/' .. i)		if (aSubPage.exists) then availableSubPageCount = availableSubPageCount + 1; end end if myMaxCheck >= tonumber(max) then if (availableSubPageCount < tonumber(max)) then retval = retval .. ""		elseif (availableSubPageCount > tonumber(max)) then retval = retval .. ""		end end if (availableSubPageCount < 2) then retval = retval .. ""	elseif (availableSubPageCount <= 5) then retval = retval .. ""	elseif (availableSubPageCount <= 10) then retval = retval .. ""	elseif (availableSubPageCount <= 15) then retval = retval .. ""	elseif (availableSubPageCount <= 20) then retval = retval .. ""	elseif (availableSubPageCount <= 25) then retval = retval .. ""	elseif (availableSubPageCount <= 30) then retval = retval .. ""	elseif (availableSubPageCount <= 40) then retval = retval .. ""	elseif (availableSubPageCount <= 50) then retval = retval .. ""	else retval = retval .. ""	end return retval; end

local function getRandomNumber(max) -- gets a random integer between 1 and max; max defaults to 1 return mRandom.number{max or 1} end

local function expandArg(args, key) -- Emulate how unspecified template parameters appear in wikitext. If the -- specified argument exists, its value is returned, and if not the argument -- name is returned inside triple curly braces. local val = args[key] if val then return val else return string.format('', key) end end

local function getPages(args) local pages = {} pages.root = args.rootpage or currentTitle.prefixedText pages.subpage = pages.root .. '/' .. expandArg(args, 'subpage') pages.random = pages.subpage .. '/' .. getRandomNumber(args.max) return pages end

local function tryExpandTemplate(frame, title, args) local success, result = pcall(frame.expandTemplate, frame, {title = title, args = args}) if success then return result else local msg = string.format(			' The page "%s" does not exist. ',			title		) if mw.title.getCurrentTitle.namespace == 100 then -- is in the portal namespace msg = msg .. ''		end return msg end end

local function getRandomSubpageContent(frame, pages) return tryExpandTemplate(		frame,		pages.random	) end

function p._main(args, frame) frame = frame or mw.getCurrentFrame local pages = getPages(args)

local ret = {} ret[#ret + 1] = getRandomSubpageContent(frame, pages)

return table.concat(ret, '\n') .. subPageTrackingCategories(pages, args.max, args.header) end

function p._nominate(args, frame) frame = frame or mw.getCurrentFrame local pages = getPages(args) local ret = {} ret[#ret + 1] = getRandomSubpageContent(frame, pages)

return table.concat(ret, '\n') .. subPageTrackingCategories(pages, args.max, args.header) end

local function makeInvokeFunction(func) return function (frame) local args = require('Module:Arguments').getArgs(frame, {			trim = false,			removeBlanks = false,			wrappers = {				'Template:Transclude random subpage',				'Template:Transclude random subpage/BHG-test',			}		}) return func(args, frame) end end

p.main = makeInvokeFunction(p._main)

return p