Module:If preview

Documentation for this module may be created at Module:If preview/doc

-- Module:If preview
-- Returns a warning only when previewing the page

local p = {}

function p._warning(args)
	local preview = args[1] or ''
	local frame = mw.getCurrentFrame()
	
	-- Check if we're in a preview
	if frame:preprocess('{{REVISIONID}}') == '' then
		return preview
	end
	
	return ''
end

function p.warning(frame)
	local args = require('Module:Arguments').getArgs(frame)
	return p._warning(args)
end

return p