Use searcher/getter rec_name for the member model

    'Member'

    __name__ = "association.member"

    _rec_name = 'party_name'

    party_name = fields.Function(fields.Char("Party Name"),

        'on_change_with_party_name',

        searcher='search_party_member')

    state = fields.Selection(STATES, 'State', readonly=True)

    code = fields.Char('Code', required=True, select=True,

        states={'readonly': Eval('code_readonly', True)},

            },

        })

    @fields.depends('party', '_parent_party.name')

    def on_change_with_party_name(self, name=None):

        if self.party:

            return self.party.name

    def get_code_readonly(self, name):

        return True

        if sequence:

            return Sequence.get_id(sequence.id)

    def get_rec_name(self, name):

        return self.party.rec_name

    @classmethod

    def search_party_member(cls, name, clause):

    def search_rec_name(cls, name, clause):

        return [('party', ) + tuple(clause[1:])]

    @classmethod

        if not all(x.paid for x in pending_fees):

            raise MemberUnpaidFeeError(

                gettext('association.msg_unpaid_fee',

                        member=", ".join([x.party_name for x in members])))

                        member=", ".join([x.rec_name for x in members])))

        for member in members:

            if not member.leave_date: