Module:Lockbox

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This module transcludes templates whose names have been given as parameters in order to trigger cascade protection.

Usage

{{#invoke:lockbox|lock|silent=1
 | X1
 | X2
 | X3
 | ...
}}

See also

• Wikipedia:Cascade-protected items

The above documentation is transcluded from Module:Lockbox/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

local export = {}

function export.lock(frame)
	local output = {}
	
	-- check if the current page is cascade-protected
	-- XXX: unfortunately there is no other way; title.protectionLevels does not report cascading protection status
	mw.title.getCurrentTitle():getContent() -- self-transclude; see [[mw:Extension:Scribunto/Lua reference manual#Title objects]]
	if frame:preprocess "{{CASCADINGSOURCES}}" == "" then
		table.insert(output, '<strong class="warning">Warning: this page (' .. mw.title.getCurrentTitle().fullText .. ') is not cascade-protected.</strong>\n')
	end
	
	local match = string.match
	local args = { }
	-- transclude everything, and discard the output
	for _, item in ipairs(frame.args) do
		item = mw.text.trim(item)
		
		-- getContent() on a title object might be cleaner, but getContent() and title objects
		-- are considered "expensive". even though they are probably cheaper than actual transclusion
		args.title = item
		frame:expandTemplate(args)

		local ns = match(item, "^(.-):")
		if not ns or not mw.site.namespaces[ns] then
			table.insert(output, '* [[Template:' .. item .. ']]\n')
		elseif (ns == "File") or (ns == "Image") then
			-- XXX: leaving this separate just in case it needs special handling
			table.insert(output, '* [[:' .. item .. ']]\n')
		elseif ns == "Category" then
			table.insert(output, '* [[:' .. item .. ']]\n')
		end
	end

	if frame.args.silent then
		return ""
	else
		return table.concat(output)
	end
end

return export