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3 Answers
4/15/19, 9:16 AM

suppose if you have a record which previously was recorded in db  in onchange you can search for same id via browse,  and then you can accees to data which differ from that one then you have in self,

if you want get not saved in db data in onchange you should go js, I don't think there is solution in odoo core for that

7/10/17, 12:26 PM

I don't know who put a -1 on the comment of @voathnak lim below,  

but I think that this question about old value in "onchange" procedures is not obvious, usefull, I didn't found any answer on the web,  

so it may have been more usefull to explain why this question is a bad question, and more usefull give a link to the possibly obvious answer ....  

(a militant for a peacefull and usefull web ....)

Voathnak Lim
7/15/16, 6:39 AM

I got the same question, can any one answer please?

How to get the previous value in onchange function

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