flectra/addons/account_voucher/security/account_voucher_security.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>
    <data noupdate="1">
        <record id="voucher_comp_rule" model="ir.rule">
            <field name="name">Voucher multi-company</field>
            <field name="model_id" ref="model_account_voucher"/>
            <field eval="True" name="global"/>
            <field name="domain_force">['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]</field>
        </record>
        <record id="voucher_line_comp_rule" model="ir.rule">
            <field name="name">Voucher Line multi-company</field>
            <field name="model_id" ref="model_account_voucher_line"/>
            <field eval="True" name="global"/>
            <field name="domain_force">['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]</field>
        </record>
        <record id="ir_rule_voucher_branch"
            model="ir.rule">
            <field name="model_id" ref="account_voucher.model_account_voucher"/>
            <field name="domain_force">['|',('branch_id','=', False),'|',('branch_id','=',user.default_branch_id.id), ('branch_id','in', [b.id for b in user.branch_ids])]</field>
            <field name="name">Vouchers Branch</field>
            <field name="global" eval="True"/>
        </record>
        <record id="ir_rule_voucher_line_branch"
                model="ir.rule">
            <field name="model_id"
                   ref="account_voucher.model_account_voucher_line"/>
            <field name="domain_force">['|',('branch_id','=', False),'|',('branch_id','=',user.default_branch_id.id), ('branch_id','in', [b.id for b in user.branch_ids])]</field>
            <field name="name">Voucher lines branch</field>
            <field name="global" eval="True"/>
        </record>
    </data>
</flectra>