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luci-lib-json: ignore null keys to allow encoding empty objects

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Matthias Schiffer 2015-06-10 11:10:38 +02:00
parent 4b01ecce7c
commit de0b59754d
1 changed files with 36 additions and 0 deletions
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patches/packages/luci/0004-luci-lib-json-ignore-null-keys-to-allow-encoding-empty-objects.patch Normal file
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@ -0,0 +1,36 @@
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Thu, 4 Jun 2015 21:03:24 +0200
Subject: 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 <mschiffer@universe-factory.net>
diff --git a/libs/luci-lib-json/luasrc/json.lua b/libs/luci-lib-json/luasrc/json.lua
index 416b25f..f7b57f9 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("}")