From: Matthias Schiffer Date: Thu, 4 Jun 2015 19:03:24 +0000 (+0200) Subject: luci-lib-json: ignore null keys to allow encoding empty objects X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fluci.git;a=commitdiff_plain;h=304eec2ebaf983fd067e5ae719f8ec023aad8b30 luci-lib-json: ignore null keys to allow encoding empty objects There is currently no way to encode an empty object {}, as empty tables are encoded as empty lists []. With this patch, encode() will ignore table fields with the key json.null (which doesn't make sense anyways). This allows adding a field with key json.null to force encoding it as an object. Signed-off-by: Matthias Schiffer --- diff --git a/libs/luci-lib-json/luasrc/json.lua b/libs/luci-lib-json/luasrc/json.lua index 416b25faa..f7b57f916 100644 --- a/libs/luci-lib-json/luasrc/json.lua +++ b/libs/luci-lib-json/luasrc/json.lua @@ -149,11 +149,13 @@ function Encoder.parse_iter(self, obj) local first = true for key, entry in pairs(obj) do - first = first or self:put(",") - first = first and false - self:parse_string(tostring(key)) - self:put(":") - self:dispatch(entry) + if key ~= null then + first = first or self:put(",") + first = first and false + self:parse_string(tostring(key)) + self:put(":") + self:dispatch(entry) + end end self:put("}")