webmcp
view framework/env/param/restore.lua @ 375:fb98b17056e5
Proper support for mutable data types (JSON objects/arrays) in table columns
| author | jbe |
|---|---|
| date | Sat Nov 14 15:44:53 2015 +0100 (2015-11-14) |
| parents | 9fdfb27f8e67 |
| children |
line source
1 --[[--
2 param.restore()
4 Calling this function reverts the changes of param.exchange(...). It should not be called explicitly, but is used implicitly, if you pass an 'id' or 'params' option to execute.view{...} or execute.action{...}.
6 --]]--
8 function param.restore()
9 local saved = param._saved
10 local previous = saved[#saved]
11 saved[#saved] = nil
12 if previous == nil then
13 error("Tried to restore id and params without having exchanged it before.")
14 end
15 param._exchanged = previous
16 end