Module:Data
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 | This module is rated as ready for general use. It has reached a mature form and is thought to be relatively bug-free and ready for use wherever appropriate. It is ready to mention on help pages and other Wikipedia resources as an option for new users to learn. To reduce server load and bad output, it should be improved by sandbox testing rather than repeated trial-and-error editing. |
This module allows wikitext to read values from data modules.
Usage
{{#invoke:Data|Module:ModuleName|key1|key2|key3|...}}
Read data value key1.key2.key3 from Module:ModuleName.
[[Category:Utility modules{{#translation:}}]]
local mt = {}
function mt.__index(t, k)
return function(frame)
local data = mw.loadData(k)
local i = 1
for _,v in ipairs(frame.args) do
local ty = type(data)
if ty ~= 'table' then
local args = {}
for j = 1, i - 1 do
args[j] = frame.args[j]
end
if frame.args.softfail then
return '<span class="error">[[Category:Pages with failed Module:Data lookups]]Error: Tried to read index "' .. mw.text.nowiki(v) .. '" of mw.loadData("' .. mw.text.nowiki(k) .. '").' .. mw.text.nowiki(table.concat(args, '.')) .. ', which is a ' .. ty .. '</span>'
else
error('Tried to read index "' .. v .. '" of mw.loadData("' .. k .. '").' .. table.concat(args, '.') .. ', which is a ' .. ty)
end
end
data = data[v]
i = i + 1
end
return data
end
end
return setmetatable({}, mt)