* libs/uci: Fixed uci.delete_all

* Fixed Freifunk wizard

applications/luci-ffwizard-leipzig/luasrc/controller/luci_ffwizard_leipzig/wizard.lua

@@ -195,12 +195,11 @@ function configure_freifunk()
 			function (section)
 				local device = section[".name"]
 				
-				if luci.http.formvalue("wifi."..iface) then
+				if luci.http.formvalue("wifi."..device) then
 					uci.delete_all("wireless", "wifi-iface",
 						function (section)
 							return (section.device == device)
 						end)
-				end
 				
 					uci.tset("wireless", device, {
 						disabled = "0",
@@ -211,13 +210,14 @@ function configure_freifunk()
 					})
 					
 					uci.section("wireless", "wifi-iface", nil, {
-					device = iface,
+						device = device,
 						network = "ff",
 						mode = "adhoc",
 						ssid = uci.get("freifunk", "community", "essid"),
 						bssid = uci.get("freifunk", "community", "bssid"),
 						txpower = 13
 					})
+				end
 			end)
 	end
 

libs/uci/luasrc/model/uci.lua

@@ -27,6 +27,7 @@ local uci  = require("uci")
 local util = require("luci.util")
 local setmetatable, rawget, rawset = setmetatable, rawget, rawset
 local error, pairs, ipairs, tostring = error, pairs, ipairs, tostring
+local table, print = table, print
 
 module("luci.model.uci", function(m) setmetatable(m, {__index = uci}) end)
 
@@ -37,16 +38,16 @@ savedir_state = "/var/state"
 
 function delete_all(config, type, comparator)
 	local del = {}
-	
-	foreach(config, type,
-		function (section)
+	local function helper (section)
 			if not comparator or comparator(section) then
 				table.insert(del, section[".name"])
 			end
-		end)
+	end
+	
+	foreach(config, type, helper)
 	
 	for i, j in ipairs(del) do
-		uci.delete(config, j)
+		delete(config, j)
 	end
 end