Module:EditAtWikidata

This module is subject to page protection. It is a highly visible module in use by a very large number of pages, and/or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing.

This Lua module is used on approximately 1,130,000 pages, or roughly 19954% of all pages.
To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.

Module to display an icon with a tooltip such as "Edit this at Wikidata"

Icon will be linked to the Wikidata entry for the article where this is placed.
This message is only displayed if a local_parameter is not supplied, i.e. when called from a template, it can be coded not to display the message when a local parameter is in use, preventing the value form Wikidata being fetched.
The qid of a Wikidata entry can optionally be supplied for testing outside the article.

Usage

To always display the icon:

{{#invoke:EditAtWikidata|showMessage}}

To display the icon depending on a local parameter not existing:

{{#invoke:EditAtWikidata|showMessage|local_parameter}}

To test the functionality outside of an article:

{{#invoke:EditAtWikidata|showMessage|qid=<ArticleID>|local_parameter}}

To make the link point to the given property at the Wikidata entry:

{{#invoke:EditAtWikidata|showMessage|pid=<PropertyID>|local_parameter}}

-- Module to display an icon with a tooltip such as "Edit this at Wikidata".
-- Icon is linked to the Wikidata entry for the article where this is placed.
-- This message is only displayed if a local_parameter is not supplied
-- i.e. when called from a template, it can be coded not to display the message.
-- The qid of a Wikidata entry can optionally be supplied for testing outside the article.
-- Usage:
-- {{#invoke:EditAtWikidata|showMessage|local_parameter}}
-- {{#invoke:EditAtWikidata|showMessage|qid=<ArticleID>|local_parameter}}

local p = {}

local i18n =
{
	["message"] = "Edit this at Wikidata"
}

local function trimToNil(text)
	-- Return trimmed non-empty text, or nil.
	if type(text) == 'string' then
		return text:match('(%S.-)%s*$')
	end
end

function p._showMessage(args)
	local local_parm = trimToNil(args[1])
	if local_parm then return "" end
	-- Parameter qid=x specifies the Wikidata ID for the article.
	-- This is not normally used except for testing outside the article.
	local qid = trimToNil(args.qid) or mw.wikibase.getEntityIdForCurrentPage()
	if qid and mw.wikibase.entityExists(qid) then
		-- Parameter pid=x uses x as an anchor in the link to the Wikidata entry.
		local anchor = trimToNil(args.pid)
		-- Parameter nbsp replaces the leading space with &nbsp;
		local space = trimToNil(args.nbsp) and "&nbsp;" or " "
		return
			space ..
			"[[File:OOjs UI icon edit-ltr-progressive.svg|frameless|text-top|10px" ..
			"|alt=" .. i18n.message ..
			"|link=https://www.wikidata.org/wiki/" .. qid ..
			(anchor and ("#" .. anchor) or "") ..
			"|class=noprint" ..
			"|" .. i18n.message ..
			"]]"
	end
	return ""
end

function p.showMessage(frame)
	return p._showMessage(frame.args)
end

return p

Usage

See also