You're mixing 2 things I think....
-----Original Message-----
From: lua-l-bounces@lists.lua.org [mailto:lua-l-bounces@lists.lua.org] On
Behalf Of albert_200200
Sent: donderdag 11 september 2014 10:09
To: lua-l
Subject: How to change class member data reference?
First I use the following code to define a lua class:
clsSMSSend = {}
function clsSMSSend:new()
local o = {}
setmetatable(o, self)
self.__index = self
o.MobileNo = "oldmobile"
o.tbl_body = {
[1] = o.MobileNo,
}
You put in in a sub-table, which indicates you're intending to use it as a proxy table. But in that case you need to add __newindex and __index methods that handle retrieval and storage of those elements
return o
end
The problem is as below:
obj = clsSMSSend:new()
obj.MobileNo = "newmobile"
for k, v in ipairs(obj.tbl_body) do
Now you're looking in obj.tbl_body where you put the value in obj.MobileNo, not in obj.tbl_body.MobileNo. If you use the proxy approach, then set an __index method that looks key up inside tbl_body.
Hth
Thijs
print(k, v) --but here still print "oldmobile" not "newmobile"
end
If I want the code to print "newmobile", how can I correct it? Thanks.