upper = fields.Char(compute='_compute_upper',

                    inverse='_inverse_upper',

                    search='_search_upper')

​

@api.depends('name')

def _compute_upper(self):

    for rec in self:

        rec.upper = rec.name.upper() if rec.name else False

​

def _inverse_upper(self):

    for rec in self:

        rec.name = rec.upper.lower() if rec.upper else False

​

def _search_upper(self, operator, value):

    if operator == 'like':

        operator = 'ilike'

    return [('name', operator, value)]