SupplierContactDetailsRelate.php - definition of the relationship on the parent module without middle table (see https://gist.github.com/proofek/5809737 for the field definitions and https://gist.github.com/proofek/5809899 for the child module relationship definition)

SupplierContactDetailsRelate.php

<?php

$dictionary['Demo_Suppliers']['fields']['demo_suppliercontactdetails'] = array(
    'name'         => 'demo_suppliercontactdetails',
    'type'         => 'link',
    'relationship' => 'demo_suppliers_emis_suppliercontactdetails',
    'module'       => 'Demo_SupplierContactDetails',
    'bean_name'    => 'Demo_SupplierContactDetails',
    'source'       => 'non-db',
    'vname'        => 'LBL_SUPPLIER_CONTACTDETAILS',
);