Module:UtilsVar
This module allows for data to be shared between invocations of a module on a given page, using Extension:VariablesLua. Use cases for this include counters and previewing Cargo storage.
Not to be confused with Module:UtilsArg.
local p = {}
VariablesLua = mw.ext.VariablesLua
function p.set(name, val)
local json = mw.text.jsonEncode(val)
VariablesLua.vardefine(name, json)
end
function p.get(name)
local json = VariablesLua.var(name)
if json == "" then
return nil
end
local val = mw.text.jsonDecode(json)
return val
end
function p.counter(name)
name = name or ""
return {
increment = function()
local val = p.get(name) or 0
val = val + 1
p.set(name, val)
end,
value = function()
return p.get(name) or 0
end
}
end
return p