Module:SDcat

--[[

SDcat

Module to check whether local short description matches that on Wikidata

--]]

local p = {}

-------------------------------------------------------------------------------

--[[

setCat has the qid of a Wikidata entity passed as |qid=

(it defaults to the associated qid of the current article if omitted)

and the local short description passed as |sd=

It returns a category if there is an associated Wikidata entity.

It returns one of the following tracking categories, as appropriate:

• Category:Short description matches Wikidata (case-insensitive)
• Category:Short description is different from Wikidata
• Category:Short description with empty Wikidata description

For testing purposes, a link prefix |lp= may be set to ":" to make the categories visible.

--]]

-- function exported for use in other modules

-- (local short description, Wikidata entity-ID, link prefix)

p._setCat = function(sdesc, itemID, lp)

if not mw.wikibase then return nil end

if itemID == "" then itemID = nil end

-- Wikidata description field

local wdesc = (mw.wikibase.getDescription(itemID) or ""):lower()

if wdesc == "" then

return "" .. lp .. "Category:Short description with empty Wikidata description"

elseif wdesc == sdesc then

return "" .. lp .. "Category:Short description matches Wikidata"

else

return "" .. lp .. "Category:Short description is different from Wikidata"

end

end

-- function exported for call from #invoke

p.setCat = function(frame)

local args

if frame.args.sd then

args = frame.args

else

args = frame:getParent().args

end

-- local short description

local sdesc = mw.text.trim(args.sd or ""):lower()

-- Wikidata entity-ID

local itemID = mw.text.trim(args.qid or "")

-- link prefix, strip quotes

local lp = mw.text.trim(args.lp or ""):gsub('"', '')

return p._setCat(sdesc, itemID, lp)

end

return p