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onchange output show previous value

on 10/16/13, 5:34 AM 2,267 views
def onchange_resvalue(self, cr, uid, ids, iscopy, description, context=None):
   context = context or {}
   v = {}
   if iscopy:
      v['res_val'] = description
   return {'value': v}

<field name="iscopy"  on_change="onchange_restime(iscopy, description)"/>
<field name="description" on_change="onchange_restime(iscopy, description)"/>
<field name="res_val"/>

In the New record (not save in db) above on change method How to get res_val previous value entered by the user? For example in the above code working in the way, 1) If user Entered res_val output value 2) And then user checked iscopy boolean field it will copy the res_val into description 3) And again unchecked how to shows previous value entered by the user.

On 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
On 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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Asked: 10/16/13, 5:34 AM
Seen: 2267 times
Last updated: 7/10/17, 12:27 PM