Module:Collapsible

This module is a small compatibility shim that exposes a function named collapsible. It forwards calls to an available renderer so that legacy templates using do not break.

Purpose

Some imported templates call:

or

On Chalo Chatu the primary entrypoint is main in Module:Collapsible list. This shim looks for that first; if unavailable, it may fall back to a compatible function in Module:Navbox (if present). If neither exists, it returns a clear error message.

Usage

Prefer the direct entrypoint:

Only use this shim for legacy code that cannot be edited:

Parameters

Identical to Module:Collapsible list’s main:

title / header

Heading text.

collapsed

yes / no. Adds class collapsed when yes.

1..50

Positional items.

class, id, list_style, item_style

Optional styling hooks passed through when supported.

Behavior

• If Module:Collapsible list with function main(frame) exists, all arguments are forwarded to it.
• Else, if Module:Navbox with function navbox(frame) exists, arguments are forwarded as-is (output may differ).
• Else, a readable Module error string is returned.

Migration guidance

Where possible, update templates to call:

This reduces indirection and makes behavior explicit.

Troubleshooting

• If you still see "Script error: The function 'collapsible' does not exist", ensure this page (Module:Collapsible) is created and that Module:Collapsible list exists with a main function.
• If output appears but styling looks plain, add CSS for .chalo-collapsible classes in MediaWiki:Common.css.

See also

• Module:Collapsible list
• Module:Navbox

---

local p = {}

function p.collapsible(frame)
	-- Prefer your local Module:Collapsible list if it exists
	local ok, m = pcall(require, 'Module:Collapsible list')
	if ok and m and type(m.main) == 'function' then
		return m.main(frame)
	end

	-- Fallback to Module:Navbox if your setup routes collapsible lists via Navbox
	local ok2, nav = pcall(require, 'Module:Navbox')
	if ok2 and nav and type(nav.navbox) == 'function' then
		-- Pass through unchanged; may not render as a list but avoids hard failure
		return nav.navbox(frame)
	end

	-- Last resort: fail clearly
	return 'Module error: no handler available for "collapsible". Ensure Module:Collapsible list (with main) or Module:Navbox is installed.'
end

return p