Hello,

I have Override the unlink function of my class, as follows:

@api.multi
def unlink(self):

    #record = self.env['affichage2.pack_stock'].search(['public_serial','=',self.public_serial])

    for record in self:

      p = self.env['affichage2.pack_stock'].browse(record.id)

      if (p.vente != None or p.vente2 != None):

         raise osv.except_osv(('Invalid Action!'), ('Le pack est déjà affecté ! Vous ne pouvez pas le supprimer',p.vente2,p.vente))


    rec = super(Pack_Stock, self).unlink()
    return rec

This function shows a warning  if the records "vente" and "vente2" are not empty. The problem is the verification didn't made well. The function didn't run as i want. How i can access to the values of these  2 fields from the Unlink function ?