Module:WikidataCheck

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Revision as of 00:01, 2 August 2018 by en>Johnuniq (fix "Lua error in Module:WikidataCheck at line 35: attempt to index field 'datavalue' (a nil value)" at BattleTech due to missing value on Wikidata)
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local p = {}

function p.wikidatacheck(frame) local pframe = frame:getParent() local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that transcludes the template

local property = config.property local value = config.value or "" local catbase = config.category local namespaces = config.namespaces local ok = false -- one-way flag to check if we're in a good namespace local ns = mw.title.getCurrentTitle().namespace for v in mw.text.gsplit( namespaces, ",", true) do if tonumber(v) == ns then ok = true end end if not ok then -- not in one of the approved namespaces return "" end local entity = mw.wikibase.getEntityObject() if not entity then -- no Wikidata item return "" end if value == "" then return nil -- Using Wikidata end local claims = entity.claims or {} local hasProp = claims[property] if not hasProp then -- no claim of that property return "" -- bad. Bot needs to add the property end for i, v in ipairs(hasProp) do -- Now we try to iterate over all possible values? propValue = (v.mainsnak.datavalue or {}).value if propValue == value then return "" -- yay! end end return "" -- needs human review :( end

return p