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2025-04-09T08:42:59Z

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en>Marsupium: function p.qCode(): adjustment for last edit: don't use redirected gallery page name for further search to avoid redirect targets like that of Susa on this page

2024-10-26T18:55:07Z

function p.qCode(): adjustment for last edit: don't use redirected gallery page name for further search to avoid redirect targets like that of Susa on this page

New page

local p = {}

function p.qCode(place)
-- recover a q-code based on place name, also if one can link to a page on commons return such link
local item, link = nil, nil

-- === STEP 1: if "place" is empty than return nothing ==============
if (not place) or (place == "") then
return item, link
end

-- === STEP 2: Check if "place" holds a q-code or matches any of the hardwired names ==============
if string.match(place, "^Q%d+$") then
return place, link -- place string contains a q-code
else
-- if multiple calls to {{City}} from a single file, than mw.loadData should load [[Module:City/data]] only once
local LookupTable = mw.loadData("Module:City/data")
item = LookupTable[mw.ustring.lower(place)]
if item then
return item, link
end
end

-- === STEP 3: Check if "place" matches existing template, gallery or category and if so provide the link ===
if #place>=3 and #place<40 then
local page = mw.title.new( place, '' )
if page and page.exists then
local page_name = place
if page.redirectTarget then
page_name = page.redirectTarget.prefixedText
end
item = mw.wikibase.getEntityIdForTitle( page_name )
link = "[[" .. page_name .. "]]"
if item then
return item, link
end
end

page = mw.title.new( place, 'category' )
if page and page.exists then
local resolve_redirect = require("Module:Resolve category redirect").rtarget
place = resolve_redirect(place)
item = mw.wikibase.getEntityIdForTitle( 'Category:' .. place )
link = "[[:Category:" .. place .. "|" .. place .. "]]"
if item then
local entity = mw.wikibase.getEntityObject(item)
if entity then
local s = entity:getBestStatements( 'P31' )
if s[1] and s[1].mainsnak.datavalue.value.id=="Q4167836" then
-- if "instance of "(P31) = "Wikimedia category" (Q4167836)
s = entity:getBestStatements( 'P301' ) -- category's main topic
if s[1] then -- if property "category's main topic" (P301) is set
item = s[1].mainsnak.datavalue.value.id
else
item = nil
end
end
end
end
return item, link
end
end

-- === STEP 4: Check if "place" matches an interwiki link to a Wikipedia
-- page with the link label matching the full page name that is linked to a
-- Wikidata item ===
local langcode, pagename = mw.ustring.match(place, "^%[%[w?:(.+):(.+)|%2%]%]$")
if langcode and pagename then
item = mw.wikibase.getEntityIdForTitle( pagename, langcode .. 'wiki' )
link = place
end
return item, link
end

function p._city(place, lang, link)
if (not place) or (place == "") then
return "" --if "place" is empty than do nothing
end

if string.match(place, "[%{%{|%[%[].+[%}%}|%]%]]") then
return place -- if "place" already has a link and if so than skip the rest of the template
end

-- Check if we can recover a q-code
local item, linkStr = p.qCode(place)
if item then
local wikidata = require("Module:Wikidata label")
return wikidata._getLabel(item, lang, link)
elseif linkStr then
return linkStr -- no q-code but we matched one of the galleries or categories
end

-- return as is
return place
end

function p.city(frame)
local args = frame.args
if not (args.lang and mw.language.isSupportedLanguage(args.lang)) then
args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
end
if (not args.link) or (mw.text.trim(args.link) == "") then
args.link = "wikipedia"
end
args.place = mw.text.trim(args.place or '')
return p._city(args.place, args.lang, args.link)
end

return p

Module:City - Revision history

Admin: 1 revision imported

en>Marsupium: function p.qCode(): adjustment for last edit: don't use redirected gallery page name for further search to avoid redirect targets like that of Susa on this page