Module:Authority control

This module contains the code for the {{Authority control}} template.

Please see Template:Authority control/doc.

---

require('strict')
local p = {}
local frame = mw.getCurrentFrame()
local config_file = frame.args.config and frame.args.config~='' and ('/' .. frame.args.config) or ''
local config = mw.loadData('Module:Authority control/config' .. config_file)
local title = mw.title.getCurrentTitle()
local namespace = title.namespace
local testcases = title.subpageText == config.i18n.testcases

local wikilink = function(target, label)
	return label and '[[' .. target .. '|' .. label .. ']]' or '[[' .. target .. ']]'
end

local needsAttention = function(sortkey)
	return wikilink(config.i18n.category .. ':' .. config.i18n.attentioncat, sortkey .. title.text)
end

local addCat = function(cat, sortkey)
	if cat and cat~='' and (namespace==0 or namespace==14 or testcases) then
		local redlinkcat = ''
		if testcases==false then
			local success, exists = pcall(function() return mw.title.new(cat, 14).exists end)
			if success and not exists then 
				redlinkcat = needsAttention('N')
			end
		end
		return wikilink(config.i18n.category..':'..cat, sortkey and sortkey..title.text) .. redlinkcat
	else
		return ''
	end
end

local tooltip = function(text, label)
	if label and label~='' then
		return frame:expandTemplate{
			title = 'Tooltip',
			args = {text, label}
		}
	else
		return text
	end
end

local getstatement = function(id, propid)
	local statement = mw.wikibase.getBestStatements('P' .. id, 'P' .. propid)
	local value
	if statement and statement[1] and statement[1].mainsnak.datavalue.value.id then
		value = statement[1].mainsnak.datavalue.value.id
		return value
	end
end
p.getname = function(property) -- function to lookup the name of a property and provide a link if one exists
	local item
	for _, propnameqid in ipairs(config.property_items) do
		item = getstatement(property, propnameqid)
		if item then break end
	end
	if item then
		local link = frame:expandTemplate{
			title = 'Wikidata fallback link',
			args = {item}
		}
		local raw = mw.wikibase.getLabel(item)
		return link, raw
	else
		return ''
	end
end

local _makelink = function(id, val, n, qid) --validate values and create a link
	local link = mw.html.create('span'):addClass('uid')
	if n==1 and id.prefix then --show prefix on primary value
		link:wikitext(id.prefix .. ': ')
	end
	local valid_value = false
	if id.customlink then -- use function to validate and generate link
		local label = n>1 and n
		local newlink = require(config.auxiliary)[id.customlink](val.id, label)
		if newlink then
			link:wikitext(newlink)
			valid_value = true
		end
	else
		if id.pattern then -- check pattern to determine validity
			valid_value = string.match(val.id, '^' .. id.pattern .. '$')
		elseif id.patterns then -- check multiple patterns to determine validity
			for _, pattern in ipairs(id.patterns) do
				valid_value = val.id:match('^' .. pattern .. '$')
				if valid_value then break end
			end
		elseif id.valid then -- use function to determine validity
			valid_value = require(config.auxiliary)[id.valid](val.id)
		else -- no validation possible
			valid_value = val.id
		end
		if valid_value then
			local label = id.label
			if not label or n>1 then
				label = tostring(n)
			end
			local newlink
			if id.link then
				valid_value = valid_value:gsub('%%', '%%%%')
				newlink = '[' .. mw.ustring.gsub(id.link, '%$1', valid_value) .. ' ' .. label .. ']'
			else
				newlink = valid_value
			end
			link:wikitext(tooltip(newlink, val.name))
		end
	end
	if valid_value then
		local cat =  id.category and string.format(config.i18n.cat, id.category)
		link:wikitext(addCat(cat))
	else
		local wdlink = qid and wikilink(':wikidata:' .. qid .. '#P' .. id.property) or ''
		local _, name = p.getname(id.property)
		local tooltip = string.format(
			config.i18n.idnotvalid,
			name,
			val.id
		)
		local cat = id.category and string.format(
			config.i18n.cat,
			config.i18n.faulty .. ' ' .. id.category
		)
		link:wikitext(wikilink('File:' .. config.i18n.warningicon .. '|20px|frameless|link=' .. wdlink, tooltip .. '.'))
			:wikitext(addCat(cat))
			:wikitext(addCat(config.i18n.allfaultycat, name))
	end
	return link
end

local _makelinks = function(id, qid)
	local getquals = function(statement, qualid)
		if statement.qualifiers and statement.qualifiers['P'..qualid] then
			return mw.wikibase.renderSnak(statement.qualifiers['P'..qualid][1])
		end
	end
	local ids = {}
	if qid then
		for _, statement in ipairs(mw.wikibase.getBestStatements(qid, 'P'..id.property)) do
			if statement.mainsnak.datavalue then
				local val = statement.mainsnak.datavalue.value
				if val then
					local namedas = getquals(statement, 1810) or getquals(statement, 742) or ''
					table.insert(ids, {id=val, name=namedas})
	end end end end
	local links
	if ids[1] then
		links = mw.html.create('li'):node(_makelink(id, ids[1], 1, qid))
		if ids[2] then
			local sublinks = mw.html.create('ul')
			for n = 2, #ids do
				sublinks:tag('li'):node(_makelink(id, ids[n], n, qid)):done()
			end
			links:node(sublinks)
		end
	end
	return links
end

--[[==================================]]
--[[               Main               ]]
--[[==================================]]
p.authorityControl = function(frame)
	local resolveQID = function(qid)
		if qid then
			qid = 'Q' .. mw.ustring.gsub(qid, '^[Qq]', '')
			if mw.wikibase.isValidEntityId(qid) and mw.wikibase.entityExists(qid) then
				local sitelink = mw.wikibase.getSitelink(qid)
				if sitelink then
					return mw.wikibase.getEntityIdForTitle(sitelink) or mw.wikibase.getEntity(qid).id
				end
				return mw.wikibase.getEntity(qid).id
	end end end
	local conf = config.config
	local parentArgs = frame:getParent().args
	local auxCats = ''
	local rct = false -- boolean to track if there are any links to be returned
	local qid, topic
	if namespace==0 then
		qid = mw.wikibase.getEntityIdForCurrentPage()
	end
	if qid then -- article is connected to a Wikidata item
		if parentArgs.qid and (resolveQID(parentArgs.qid) ~= qid) then -- non-matching qid parameter
			auxCats = auxCats .. needsAttention('D')
		end
	else -- page is not connected to any Wikidata item
		qid = resolveQID(parentArgs.qid) -- check qid parameter if no wikidata item is connected
		if qid then -- qid parameter is valid, set topic to display
			topic = mw.wikibase.getLabel(qid)
			if topic then
				if mw.ustring.lower(title.subpageText)==mw.ustring.lower(topic) then -- suppress topic display if subpagename equals topic up to case change
					topic = nil
				end
				if topic and mw.wikibase.getSitelink(qid) then -- make wikilink to article
					topic = wikilink(mw.wikibase.getSitelink(qid), topic)
				end
			else
				auxCats = auxCats .. needsAttention('L')
			end
		elseif parentArgs.qid and parentArgs.qid~='' then -- invalid qid has been supplied, add to tracking cat
			auxCats = auxCats .. needsAttention('Q')
		end
	end
	local qids = {} -- setup any additional QIDs
	if parentArgs.additional=='auto' and qid then  -- check P527 for parts to add additional qids
		local checkparts = function(property)
			local parts = mw.wikibase.getBestStatements(qid, property)
			if parts then
				for _, part in ipairs(parts) do
					if part.mainsnak.datavalue and part.mainsnak.datavalue.value.id then
						local resolvedqid = resolveQID(part.mainsnak.datavalue.value.id)
						if resolvedqid then
							table.insert(qids,resolvedqid)
		end end end end end
		for _, part in ipairs(config.auto_additional) do
			checkparts('P' .. part)
		end
	elseif parentArgs.additional and parentArgs.additional~='' then
		for _, v in ipairs(mw.text.split(parentArgs.additional, '%s*,%s*')) do
			v = resolveQID(v)
			if v then
				if v==qid then -- duplicate of qid parameter
					auxCats = auxCats .. needsAttention('R')
				end
				table.insert(qids, v)
			else -- invalid QID specified
				auxCats = auxCats .. needsAttention('A')
			end
		end
	end

	local numsections = 0
	for _, _ in ipairs(config.sections) do -- count number of regular sections
		numsections = numsections + 1
	end
	local sections = {}
	for _ = 1, #qids+numsections do
		table.insert(sections, {})
	end

	-- check which identifiers to show/suppress in template
	local show, show_all_unsuppressed = {}, true
	local stripP = function(pid) --strip P from property number
		if pid:match('^[Pp]%d+$') then
			pid = mw.ustring.gsub(pid, '[Pp]', '')
		end
		if pid:match('^%d+$') then
			return tonumber(pid)
		end
	end
	local addshowlist = function(list)
		if list and list~='' then
			for _, v in ipairs(mw.text.split(string.lower(list), '%s*,%s*')) do
				local vprop = stripP(v)
				if vprop then -- e.g. show=P214 to show one particular property
					show[vprop] = true
				else -- e.g. show=arts to use whitelist
					if config.whitelists[v] then
						for _, w in ipairs(config.whitelists[v].properties) do
							show[w] = true
			end end end end
			show_all_unsuppressed = false
	end end
	addshowlist(frame.args.show) -- check show= parameter on wrapper template
	addshowlist(parentArgs.show) -- check show parameter on article
	addshowlist(parentArgs.country) -- check country parameter on article
	if parentArgs.suppress then
		local suppresslist = mw.text.split(parentArgs.suppress, '%s*,%s*') -- split parameter by comma
		for _, v in ipairs(suppresslist) do
			v = stripP(v)
			if v then
				show[v] = false
				auxCats = auxCats .. wikilink(config.i18n.category .. ':' .. config.i18n.suppressedcat)
			else
				auxCats = auxCats .. needsAttention('P')
			end
		end
	end
	
	local makeSections = function(qid, addit)
		for _, id in ipairs(conf) do
			if id.suppressedbyproperty then
				for _, property in ipairs(id.suppressedbyproperty) do
					if show[property]=='used' then -- property is in use
						show[id.property] = false -- suppressed by another property
					end
				end
			end
			if show[id.property]==nil then
				show[id.property] = show_all_unsuppressed
			end
			if show[id.property] then
				local links = _makelinks(id, qid)
				if links then
					table.insert(
						sections[addit or id.section],
						links
					)
					show[id.property] = 'used'
					rct = true
	end end end end
	local pencil = function(qid)
		if qid then
			return require('Module:EditAtWikidata')._showMessage{
				pid = 'identifiers',
				qid = qid
			}
		else
			return ''
		end
	end

	makeSections(qid, false)
	for c = 1, #qids do
		makeSections(qids[c], numsections+c)
	end

	--configure Navbox
	local outString = ''
	if rct then -- there is at least one link to display
		local Navbox = require('Module:Navbox')
		local sect, lastsect = 0, 0
		local navboxArgs = {
			name  = 'Authority control',
			navboxclass = 'authority-control',
			bodyclass = 'hlist',
			state = parentArgs.state or config.i18n.autocollapse,
			navbar = 'off'
		}
		for c = 1, numsections+#qids do
			if #sections[c]>0 then -- section is non-empty
				sect = sect + 1
				lastsect = c
				local sectname
				if c<=numsections then -- regular section
					sectname = config.sections[c].name
				else -- section from additional qid
					local qid = qids[c-numsections]
					local label, sitelink = mw.wikibase.getLabel(qid), mw.wikibase.getSitelink(qid)
					if label then
						if sitelink then
							local target = mw.title.new(sitelink)
							if target==title or (target.isRedirect and target.redirectTarget==title) then -- do not link
								sectname = label
							else -- make wikilink to article
								sectname = wikilink(sitelink, label)
							end
						else
							sectname = label
						end
					else
						auxCats = auxCats .. needsAttention('L')
						sectname = qid
					end
					sectname = sectname .. pencil(qid)
				end
				navboxArgs['group' .. c] = sectname
				local list = mw.html.create('ul')
				for _, link in ipairs(sections[c]) do
					list:node(link)
				end
				navboxArgs['list' .. c] = tostring(list)
			end
		end
		if topic then -- display in expanded form with topic
			navboxArgs.title = config.i18n.aclink .. ' &ndash; ' .. topic .. pencil(qid)
		elseif sect==1 then -- special display when only one section
			if lastsect<=numsections then
				if config.sections[lastsect].hidelabelwhenalone then -- no special label when only general or other IDs are present
					navboxArgs['group' .. lastsect] = config.i18n.aclink .. pencil(qid)
				else -- other regular section
					navboxArgs['group' .. lastsect] = config.i18n.aclink .. ': ' .. navboxArgs['group' .. lastsect] .. pencil(qid)
				end
			else -- section from additional qid
				navboxArgs['group' .. lastsect] = config.i18n.aclink .. ': ' .. navboxArgs['group' .. lastsect]
			end
		else -- add title to navbox
			navboxArgs.title = config.i18n.aclink .. pencil(qid)
		end
		outString = Navbox._navbox(navboxArgs)
	end

	if parentArgs.state
		and parentArgs.state~=''
		and parentArgs.state~=config.i18n.collapsed
		and parentArgs.state~=config.i18n.expanded
		and parentArgs.state~=config.i18n.autocollapse then --invalid state parameter
		auxCats = auxCats .. needsAttention('S')
	end
	if testcases then
		auxCats = mw.ustring.gsub(auxCats, '(%[%[)(' .. config.i18n.category .. ')', '%1:%2') --for easier checking
	end

	--out
	outString = outString .. auxCats
	if namespace~=0 then
		outString = mw.ustring.gsub(outString, '(%[%[)(' .. config.i18n.category .. ':' .. config.i18n.Articles .. ')([^%|%]]+)%|?[^%|%]]*(%]%])','%1:%2%3%4')
		outString = mw.ustring.gsub(outString, '(%[%[)(' .. config.i18n.category .. ':' .. config.i18n.All_articles .. ')([^%|%]]+)%|?[^%|%]]*(%]%])','%1:%2%3%4')
	end
	local check = require('Module:Check for unknown parameters')._check
	local sortkey
	if namespace==0 then
		sortkey = '*' .. title.text
	else
		sortkey = title.fullText
	end
	outString = outString .. check({
		['unknown'] = wikilink(config.i18n.category .. ':' .. config.i18n.pageswithparams, sortkey),
		['preview'] = config.i18n.previewwarning, 'show', 'country', 'suppress', 'additional', 'qid', 'state'
		}, parentArgs)
	return outString
end

p.makelink = function(id, qid)
	return _makelinks(id, qid)
end

return p