SupplierRelate.php - definition of the relationship without middle table (see https://gist.github.com/proofek/5809737 for the field definitions)

SupplierRelate.php

<?php

/*
 * Relationship link
 * * see the link defined on the name field above
 * * relationship name matches the relationship defined below
 */
$dictionary['Demo_SupplierContactDetails']['fields']['demo_suppliers'] = array(
    'name'          => 'demo_suppliers',
    'type'          => 'link',
    'relationship'  => 'demo_suppliers_demo_suppliercontactdetails',
    'module'        => 'Demo_Suppliers',
    'bean_name'     => 'Demo_Suppliers',
    'source'        => 'non-db',
    'vname'         => 'LBL_SUPPLIERS',
);

/*
 * Relationship definition
 */
$dictionary['Demo_SupplierContactDetails']['relationships']['demo_suppliers_demo_suppliercontactdetails'] = array(
    'lhs_module'        => 'Demo_SupplierContactDetails',
    'lhs_table'         => 'Demo_SupplierContactDetails',
    'lhs_key'           => 'demo_suppliers_id',
    'rhs_module'        => 'Demo_Suppliers',
    'rhs_table'         => 'Demo_Suppliers',
    'rhs_key'           => 'id',
    'relationship_type' => 'one-to-many',
);