On 2018-10-01 02:52, Markus Bala wrote:
> > > I am going to integrate with some WMS system for receiving. When user 
> > > input the PO number which is "Lodnum" then tryton "on_change" and will 
> > > display the WMS data to the list (MS SQL Server).
> > > 
> > > Background, after "on_change", I will read data from MSSQL. And insert to 
> > > Tryton postgres. 
> > > But when inserted, above error occurred.
> > 
> > on_change calls are always read-only to enforce good design and
> > practice. You can not save in the database something that the user did
> > not save yet. Instead you must just send modification to the client by
> > setting fields (without saving).
> 
> for ModelSQL , we can set  by "self.field = value".
> But how to setting the fields for context_model?

It is set by the context. Otherwise, it is a model like the others, you
can define on_change on it etc.

-- 
Cédric Krier - B2CK SPRL
Email/Jabber: cedric.kr...@b2ck.com
Tel: +32 472 54 46 59
Website: http://www.b2ck.com/

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