如何计算 Odoo 8 中的 'number of time a field is edited or updated'?

How to count the 'number of time a field is edited or updated' in Odoo 8?

我想统计一个字段在一个表单中被编辑了多少次,该计数应该传递给同一个表单中另一个名为 'Number of Edits' 的字段。

此代码工作正常..

def write(self, cr, uid, ids, vals, context=None):
    quotation_obj=self.browse(cr, uid, ids,context=context)
    if partner_id:
                count = quotation_obj.number_of_edits + 1
                vals.update({'number_of_edits': count})

    return super(sale_order, self).write(cr, uid, ids, vals, context=context)

这是完整的代码

def write(self, cr, uid, ids, vals, context=None):
        partner_id=vals.get('partner_id')
        quotation_obj=self.browse(cr, uid, ids,context=context)

        if not partner_id:
            #if partner id not found, find the employee ids
            emp_ids=vals.get('employee_ids')
            if emp_ids:
#                 for line in emp_ids:
#                     employee_ids=line[2]
#             else:#update the employee ids
#                 employee_ids=quotation_obj.employee_ids
                for line in emp_ids:
                    self.pool.get('res.partner').write(cr, uid, quotation_obj.partner_id.id, {'employee_ids': [(4, line[2])]}, context=context)
        if partner_id:
            emp_ids=vals.get('employee_ids')
            if emp_ids:
                for line in emp_ids:
                    self.pool.get('res.partner').write(cr, uid, partner_id, {'employee_ids': [(4, line[2])]}, context=context)

        if partner_id:
            count = quotation_obj.number_of_edits + 1
            vals.update({'number_of_edits': count})

        return super(sale_order, self).write(cr, uid, ids, vals, context=context)