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--[[
LuCI - UCI mpdel
Description:
Generalized UCI model
FileId:
$Id$
License:
Copyright 2008 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
]]--
local uci = require("uci")
local util = require("luci.util")
local setmetatable = setmetatable
local rawget = rawget
local rawset = rawset
local error = error
local tostring = tostring
module("luci.model.uci", function(m) setmetatable(m, {__index = uci}) end)
local configs_mt = {}
local sections_mt = {}
local options_mt = {}
config = {}
setmetatable(config, configs_mt)
-- Level 1 (configs)
function configs_mt.__index(self, key)
local node = rawget(self, key)
if not node then
node = {}
node[".name"] = key
setmetatable(node, sections_mt)
rawset(self, key, node)
end
return node
end
function configs_mt.__newindex()
error("invalid operation")
end
-- Level 2 (sections)
function sections_mt.__index(self, key)
local node = rawget(self, key)
if not node then
node = {}
node[".conf"] = self[".name"]
node[".name"] = key
node[".type"] = uci.get(self[".name"], key)
setmetatable(node, options_mt)
rawset(self, key, node)
end
return node
end
function sections_mt.__newindex(self, key, value)
if not value then
if uci.delete(self[".name"], key) then
rawset(self, key, nil)
else
error("unable to delete section")
end
elseif key == "" then
key = uci.add(self[".name"], tostring(value))
if key then
rawset(self, "", self[key])
else
error("unable to create section")
end
else
if not uci.set(self[".name"], key, value) then
error("unable to create section")
end
end
end
-- Level 3 (options)
function options_mt.__index(self, key)
return uci.get(self[".conf"], self[".name"], key)
end
function options_mt.__newindex(self, key, value)
if not value then
if not uci.delete(self[".conf"], self[".name"], key) then
error("unable to delete option")
end
else
if not uci.set(self[".conf"], self[".name"], key, tostring(value)) then
error("unable to write option")
end
end
end
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