[tryton] Disabling creation/deletion on One2Many fields

[Sergi Almacellas Abellana]

Hi,

I have a Model which has a One2Many field to sale lines. This field will 
be used to update sale line quantities but I don't want the user to 
create new lines from here.

There is some way to implement it without restricting create/delete 
access to sale.line model?

BTW I managed to disable the new button but setting a size attribute to 
the One2Many with the current size. But this doesn't prevent to delete 
lines.

Thanks in advance.

--
Sergi Almacellas Abellana
www.koolpi.com
Twitter: @pokoli_srk