Модул:Transclude random subpage

Документацију овог модула можете да направите на страници Модул:Transclude random subpage/док

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

local p = {}

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

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('{{{%s}}}', 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(
			'<strong class="error">The page "[[%s]]" does not exist.</strong>',
			title
		)
		if mw.title.getCurrentTitle().namespace == 100 then -- is in the portal namespace
			msg = msg .. '[[Category:Portals needing attention]]'
		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')
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')
end

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

p.main = makeInvokeFunction(p._main)

return p