SOLVED: Luci app ubus access

stangri · July 11, 2018, 4:02pm

Struggling to find up-to-date documentation on pulling information from ubus inside of the luci app.

Is this still valid: https://wiki.openwrt.org/doc/techref/ubus#lua_module_for_ubus ? I can't make it work inside the lua shell.

I've searched the luci repo for ubus and found two ways it's being used by current code:

github.com

openwrt/luci/blob/64da34b13c518ce28dca7d5f7ee791507d21ac08/modules/luci-base/luasrc/model/network.lua#L111


	if v ~= nil then
		if type(v) == "boolean" then v = v and "1" or "0" end
		return _uci:set(c, s, o, v)
	else
		return _uci:delete(c, s, o)
	end
end


local function _wifi_state()
	if not next(_ubuswificache) then
		_ubuswificache = utl.ubus("network.wireless", "status", {}) or {}
	end
	return _ubuswificache
end


local function _wifi_state_by_sid(sid)
	local t1, n1 = _uci:get("wireless", sid)
	if t1 == "wifi-iface" and n1 ~= nil then
		local radioname, radiostate
		for radioname, radiostate in pairs(_wifi_state()) do
			if type(radiostate) == "table" and

and

github.com

openwrt/luci/blob/94d9bfb1da3d0bfd21b1e857b270b248f03b8a00/applications/luci-app-attendedsysupgrade/root/www/luci-static/resources/attendedsysupgrade.js#L16-L17


	ubus_call("uci", "set", { "config": "attendedsysupgrade", "section": "server", values: { "url": data.url } })
	ubus_call("uci", "commit", { "config": "attendedsysupgrade" })

In ash I do: echo "$(ubus call service list "{\"name\": \"${packageName}\"}" | jsonfilter -l1 -e "@['${packageName}']['instances']['status']['data']['status']")", how do I do the same in lua/luci app?

Thanks!

Solution: do not use local for variable declarations in lua console.

tmomas · July 11, 2018, 4:11pm

New URL: https://openwrt.org/docs/techref/ubus#lua_module_for_ubus

stangri · July 12, 2018, 1:51am

Both wiki approach and using luci.util.ubus work. I ended up doing this:

local util = require "luci.util"
local serviceName = "myService"
local status = util.ubus('service', 'list', { name = serviceName })[serviceName]['instances']['status']['data']['status'] or "Stopped"