Mô đun:Portal

--[[ This module is a Lua implementation of the old template. As of February 2019 it is used on nearly 7,900,000 articles.
-- Please take care when updating it! It outputs two functions: p.portal, which generates a list of portals, and p.image, which
-- produces the image name for an individual portal.

-- The portal image data is kept in submodules of Module:Portal/images, listed below:
-- Module:Portal/images/a - for portal names beginning with "A".
-- Module:Portal/images/b - for portal names beginning with "B".
-- Module:Portal/images/c - for portal names beginning with "C".
-- Module:Portal/images/d - for portal names beginning with "D".
-- Module:Portal/images/e - for portal names beginning with "E".
-- Module:Portal/images/f - for portal names beginning with "F".
-- Module:Portal/images/g - for portal names beginning with "G".
-- Module:Portal/images/h - for portal names beginning with "H".
-- Module:Portal/images/i - for portal names beginning with "I".
-- Module:Portal/images/j - for portal names beginning with "J".
-- Module:Portal/images/k - for portal names beginning with "K".
-- Module:Portal/images/l - for portal names beginning with "L".
-- Module:Portal/images/m - for portal names beginning with "M".
-- Module:Portal/images/n - for portal names beginning with "N".
-- Module:Portal/images/o - for portal names beginning with "O".
-- Module:Portal/images/p - for portal names beginning with "P".
-- Module:Portal/images/q - for portal names beginning with "Q".
-- Module:Portal/images/r - for portal names beginning with "R".
-- Module:Portal/images/s - for portal names beginning with "S".
-- Module:Portal/images/t - for portal names beginning with "T".
-- Module:Portal/images/u - for portal names beginning with "U".
-- Module:Portal/images/v - for portal names beginning with "V".
-- Module:Portal/images/w - for portal names beginning with "W".
-- Module:Portal/images/x - for portal names beginning with "X".
-- Module:Portal/images/y - for portal names beginning with "Y".
-- Module:Portal/images/z - for portal names beginning with "Z".
-- Module:Portal/images/other - for portal names beginning with any other letters. This includes numbers,
-- letters with diacritics, and letters in non-Latin alphabets.
-- Module:Portal/images/aliases - for adding aliases for existing portal names. Use this page for variations
-- in spelling and diacritics, etc., no matter what letter the portal begins with.
--
-- The images data pages are separated by the first letter to reduce server load when images are added, changed, or removed.
-- Previously all the images were on one data page at Module:Portal/images, but this had the disadvantage that all
-- 5,000,000 pages using this module needed to be refreshed every time an image was added or removed.
]]

local p = {}

-- determine whether we're being called from a sandbox
local isSandbox = mw.getCurrentFrame():getTitle():find('sandbox', 1, true)
local sandbox = isSandbox and '/sandbox' or

local function sandboxVersion(s)
return isSandbox and s..'-sand' or s
end

local templatestyles = 'Module:Portal'..sandbox..'/styles.css'

local getArgs = require('Module:Arguments').getArgs
local yesno = require('Module:Yesno')

-- List of non-talk namespaces which should not be tracked (Talk pages are never tracked)
local badNamespaces = {'user','template','draft','wikipedia'}

-- Check whether to do tracking in this namespace
-- Returns true unless the page is one of the banned namespaces
local function checkTracking(title)
local thisPage = title or mw.title.getCurrentTitle()
if thisPage.isTalkPage then
return false
end
local ns = thisPage.nsText:lower()
for _, v in ipairs(badNamespaces) do
if ns == v then
return false
end
end
return true
end

local function matchImagePage(s)
-- Finds the appropriate image subpage given a lower-case
-- portal name plus the first letter of that portal name.
if type(s) ~= 'string' or s 1 and 's' or )
trackingCat = (trackingEnabled and or )
return portals, trackingCat, errMsg
end
-- check for too many portals
if args.maxPortals >= 0 and portals > args.maxPortals then
errMsg = 'quá nhiều cổng thông tin (tối đa = '..args.maxPortals..')'
trackingCat = (trackingEnabled and or )
return portals, trackingCat, errMsg
end
if not args.redlinks or trackingEnabled then
-- make new list of portals that exist
local existingPortals = {}
for _, portal in ipairs(portals) do
local portalTitle = mw.title.new(portal,"Cổng_thông_tin")
-- if portal exists, put it into list
if portalTitle and exists(portalTitle) then
table.insert(existingPortals,portal)
-- otherwise set tracking cat
elseif trackingEnabled then
trackingCat = ""
end
end
-- If redlinks is off, use portal list purged of redlinks
portals = args.redlinks and portals or existingPortals
-- if nothing left after purge, set tracking cat
if portals == 0 and trackingEnabled then
trackingCat = trackingCat..""
end
end
return portals, trackingCat, errMsg
end

local function portalBox(args)
return mw.html.create('ul')
:attr('role', 'navigation')
:attr('aria-label', 'Cổng thông tin')
:addClass('noprint')
:addClass(args.error and or sandboxVersion('portalbox'))
:addClass(args.border and sandboxVersion('portalborder') or )
:addClass(sandboxVersion(args.left and 'portalleft' or 'portalright'))
:css('margin', args.margin or nil)
:newline()
end

local function fillBox(root, contents)
for _, item in ipairs(contents) do
local entry = root:tag('li')
entry:addClass(sandboxVersion('portalbox-entry'))
local image = entry:tag('span')
image:addClass(sandboxVersion('portalbox-image'))
image:wikitext(item[1])
local link = entry:tag('span')
link:addClass(sandboxVersion('portalbox-link'))
link:wikitext(item[2])
end
return root
end

function p._portal(portals, args)
-- This function builds the portal box used by the template.

-- Normalize all arguments
if args.redlinks == 'include' then args.redlinks = true end
args.addBreak = args['break']
for key, default in pairs({left=false,tracking=true,nominimum=false,
redlinks=false,addBreak=false,border=true}) do
if args[key] == nil then args[key] = default end
args[key] = yesno(args[key], default)
end

local root = portalBox(args)

local trackingCat =
local errMsg = nil
args.minPortals = args.nominimum and 0 or 1
args.maxPortals = -1
portals, trackingCat, errMsg = p._checkPortals(portals, args)
root:wikitext(trackingCat)
-- if error message, put it in the box and return
if errMsg then
if args.border then -- suppress error message when border=no
args.error = true -- recreate box without fancy formatting
root = portalBox(args)
root:wikitext(trackingCat)
local errTag = root:tag('strong')
errTag:addClass('error')
errTag:css('padding','0.2em')
errTag:wikitext('Lỗi: '..errMsg)
end
return tostring(root)
end
-- if no portals (and no error), just return tracking category
if portals == 0 then
return trackingCat
end

local contents = {}
-- Display the portals specified in the positional arguments.
local defaultUsed = nil
for _, portal in ipairs(portals) do
local portalImage = getImageName(portal)
if portalImage == defaultImage then
defaultUsed = portal
end
local image = string.format(,
portalImage)
local link = string.format('Cổng thông tin%s%s',
portal, args.addBreak and or ' ', portal)
table.insert(contents, {image, link})
end
if defaultUsed and args.tracking and checkTracking() then
local cat = string.format(,
defaultUsed)
root:wikitext(cat)
end
return tostring(fillBox(root, contents))
end

function p._demo(imageList, args)
for key, default in pairs({left=false,border=true}) do
if args[key] == nil then args[key] = default end
args[key] = yesno(args[key], default)
end

local root = portalBox(args)

local contents = {}
-- Display the portals specified in the positional arguments.
for _, fn in ipairs(imageList) do
local image = string.format(,fn)
local link = string.format('%s',fn,fn)
table.insert(contents,{image,link})
end

return tostring(fillBox(root,contents))
end

function p._image(portal,keep)
-- Wrapper function to allow getImageName() to be accessed through invoke.
-- backward compatibility: if table passed, take first element
if type(portal) == 'table' then
portal = portal[1]
end
local name = getImageName(portal)
-- If keep is yes (or equivalent), then allow all metadata (like image borders) to be returned
local keepargs = yesno(keep)
local args = mw.text.split(name, "|", true)
local result = {args[1]} -- the filename always comes first
local category =
-- parse name, looking for category arguments
for i = 2,args do
local m = mw.ustring.match(args[i], "^%scategory%s=")
if keepargs or m then
table.insert(result, args[i])
end
end
-- reassemble arguments
return table.concat(result,"|")
end

local function getAllImageTable()
-- Returns an array containing all image subpages (minus aliases) as loaded by mw.loadData.
local images = {}
for i, subpage in ipairs{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'other'} do
local imageTable = mw.loadData('Module:Portal/images/' .. subpage)
for portal, image in pairs(imageTable) do
local args = mw.text.split(image,"|")
images[portal] = args[1] -- just use image filename
end
end
return images
end

function p._displayAll(portals, args)
-- This function displays all portals that have portal images. This function is for maintenance purposes and should not be used in
-- articles, for two reasons: 1) there are over 1500 portals with portal images, and 2) the module doesn't record how the portal
-- names are capitalized, so the portal links may be broken.
local lang = mw.language.getContentLanguage()
portals = portals or {}
for portal in pairs(getAllImageTable()) do
table.insert(portals,lang:ucfirst(portal))
end
table.sort(portals)
args.redlinks = args.redlinks or "yes"
return p._portal(portals, args)
end

function p._imageDupes()
-- This function searches the image subpages to find duplicate images. If duplicate images exist, it is not necessarily a bad thing,
-- as different portals might just happen to choose the same image. However, this function is helpful in identifying images that
-- should be moved to a portal alias for ease of maintenance.
local exists, dupes = {}, {}
for portal, image in pairs(getAllImageTable()) do
if not exists[image] then
exists[image] = portal
else
table.insert(dupes, string.format('Hình ảnh "%s" được dùng cho cả hai bản mẫu "%s" và "%s".', image, image, exists[image], portal))
end
end
if dupes < 1 then
return 'Không tìm thấy ảnh trùng.'
else
return 'Đã tìm thấy ảnh trùng sau:\n ' .. table.concat(dupes, '\n ')
end
end

local function processPortalArgs(args)
-- This function processes a table of arguments and returns two tables: an array of portal names for processing by ipairs, and a table of
-- the named arguments that specify style options, etc. We need to use ipairs because we want to list all the portals in the order
-- they were passed to the template, but we also want to be able to deal with positional arguments passed explicitly, for example
-- . The behaviour of ipairs is undefined if nil values are present, so we need to make sure they are all removed.
args = type(args) == 'table' and args or {}
local portals = {}
local namedArgs = {}
for k, v in pairs(args) do
if type(k) 'number' and type(v) 'string' then -- Make sure we have no non-string portal names.
table.insert(portals, k)
elseif type(k) ~= 'number' then
namedArgs[k] = v
end
end
table.sort(portals)
for i, v in ipairs(portals) do
portals[i] = args[v]
end
return portals, namedArgs
end

-- Entry point for sorting portals from other named arguments
function p._processPortalArgs(args)
return processPortalArgs(args)
end

function p.image(frame)
local origArgs = getArgs(frame)
local portals, args = processPortalArgs(origArgs)
return p._image(portals[1],args.border)
end

function p.demo(frame)
local args = getArgs(frame)
local styles = frame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} }
return styles..p._demo(args,args)
end

local function makeWrapper(funcName)
-- Processes external arguments and sends them to the other functions.
return function (frame)
-- If called via invoke, use the args passed into the invoking
-- template, or the args passed to invoke if any exist. Otherwise
-- assume args are being passed directly in from the debug console
-- or from another Lua module.
-- Also: trim whitespace and remove blank arguments
local origArgs = getArgs(frame)
-- create two tables to pass to func: an array of portal names, and a table of named arguments.
local portals, args = processPortalArgs(origArgs)
local results =
if funcName '_portal' or funcName '_displayAll' then
results = frame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} }
end
return results .. p[funcName](portals, args)
end
end

for _, funcName in ipairs{'portal', 'imageDupes', 'displayAll'} do
p[funcName] = makeWrapper('_' .. funcName)
end

return p