rdb

rdb

ORM for postgres.

Simple, flexible mapper.
Transaction with commit and rollback.
Persistence ignorance - no need for explicit saving, everything is handled by transaction.
Eager or lazy loading.
Based on promises.
Release notes
All examples below are found at npmjs.org/package/rdb-demo.
Table of contents

Basic querying
getById
tryGetFirst
join
hasMany
hasone
composite keys
getById eagerly
tryGetFirst eagerly
toJSON
toJSON with strategy
getMany
getMany lazily
getMany eagerly
(manyTo)JSON
(many)ToJSON with strategy

Persistence
update
insert
default values
conventions
update a join-relation
update a hasOne-relation
update a hasMany-relation

Filters
equal
notEqual
not
lessThan
lessThanOrEqual
greaterThan
greaterThanOrEqual
between
in
startsWith
endsWith
contains
exists
or
and
or alternative syntax
and alternative syntax
sub filter
composite filter

Contents

getById

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cRegdate').date().as('registeredDate');
Customer.column('cIsActive').boolean().as('isActive');
Customer.column('cPicture').binary().as('picture');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getById)
    .then(printCustomer)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getById() {
    return Customer.getById('a0000000-0000-0000-0000-000000000000');
}

function printCustomer(customer) {
    var format = 'Customer Id: %s, name: %s, Balance: %s, Registered Date: %s, Is Active: %s, Picture: %s'; 
    var args = [format, customer.id, customer.name, customer.balance, customer.registeredDate, customer.isActive, customer.picture];
    console.log.apply(null,args);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

tryGetFirst

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(tryGetFirst)
    .then(printCustomer)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function tryGetFirst() {
    var filter = Customer.name.equal('John');
    return Customer.tryGetFirst(filter);
}

function printCustomer(customer) {
    if (customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);;
    }
    else
        console.log('customer not found');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

join

var rdb = require('rdb');

var Customer = rdb.table('_customer');
var Order = rdb.table('_order');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').guid().as('customerId');
Order.join(Customer).by('oCustomerId').as('customer');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(printOrder)
    .then(printCustomer)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    return Order.getById('a0000000-a000-0000-0000-000000000000');
}

function printOrder(order) {
    var format = 'Order Id: %s, Order No: %s, Customer Id: %s'; 
    var args = [format, order.id, order.orderNo, order.customerId];
    console.log.apply(null,args);
    return order.customer; //this is a promise
}

function printCustomer(customer) {
    if (!customer)
        return;
    var format = 'Customer Id: %s, name: %s'; 
    var args = [format, customer.id, customer.name];
    console.log.apply(null,args);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

hasMany

var rdb = require('rdb');

var Order = rdb.table('_order');
var OrderLine = rdb.table('_orderLine');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(printOrder)
    .then(printLines)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    return Order.getById('b0000000-b000-0000-0000-000000000000');
}

function printOrder(order) {
    var format = 'Order Id: %s, Order No: %s'; 
    var args = [format, order.id, order.orderNo];
    console.log.apply(null,args);
    return order.lines; //this is a promise
}

function printLines(lines) {
    lines.forEach(printLine);

    function printLine(line) {
        var format = 'Line Id: %s, Order Id: %s, Product: %s'; 
        var args = [format, line.id, line.orderId, line.product];
        console.log.apply(null,args);
    }    
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

hasOne

var rdb = require('rdb');

var Order = rdb.table('_order');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(printOrder)
    .then(printDeliveryAddress)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    return Order.getById('b0000000-b000-0000-0000-000000000000');
}

function printOrder(order) {
    var format = 'Order Id: %s, Order No: %s'; 
    var args = [format, order.id, order.orderNo];
    console.log.apply(null,args);
    return order.deliveryAddress; //this is a promise
}

function printDeliveryAddress(address) {
    var format = 'DeliveryAddress Id: %s, Order Id: %s, %s'; 
    var args = [format, address.id, address.orderId, address.name, address.street];
    console.log.apply(null,args);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

compositeKeys

var rdb = require('rdb');

var Order = rdb.table('_compositeOrder');
var OrderLine = rdb.table('_compositeOrderLine');

Order.primaryColumn('oCompanyId').numeric().as('companyId');
Order.primaryColumn('oOrderNo').numeric().as('orderNo');

OrderLine.primaryColumn('lCompanyId').numeric().as('companyId');
OrderLine.primaryColumn('lOrderNo').numeric().as('orderNo');
OrderLine.primaryColumn('lLineNo').numeric().as('lineNo');
OrderLine.column('lProduct').string().as('product');

var line_order_relation = OrderLine.join(Order).by('lCompanyId', 'lOrderNo').as('order');
Order.hasMany(line_order_relation).as('lines');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(printOrder)
    .then(printLines)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    var companyId = 1,
        orderId = 1001;
    return Order.getById(companyId, orderId);
}

function printOrder(order) {
    console.log('Company Id: %s, Order No: %s', order.companyId, order.orderNo)
    return order.lines; //this is a promise
}

function printLines(lines) {
    lines.forEach(printLine);

    function printLine(line) {
        var format = 'Company Id: %s, Order No: %s, Line No: %s, Product: %s'; 
        var args = [format, line.companyId, line.orderNo, line.lineNo, line.product];
        console.log.apply(null,args);
    }    
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

getById eagerly

var rdb = require('rdb');

var Customer = rdb.table('_customer');
var Order = rdb.table('_order');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').guid().as('customerId');
Order.join(Customer).by('oCustomerId').as('customer');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrderWithCustomer)
    .then(printOrder)
    .then(printCustomer)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrderWithCustomer() {
    var fetchingStrategy = {customer : null}; //alternatively: {customer : {}} 
    return Order.getById('a0000000-a000-0000-0000-000000000000', fetchingStrategy);
}

function printOrder(order) {
    var format = 'Order Id: %s, Order No: %s, Customer Id: %s'; 
    var args = [format, order.id, order.orderNo, order.customerId];
    console.log.apply(null,args);
    return order.customer; //this is a promise
}

function printCustomer(customer) {
    if (!customer)
        return;
    console.log('Customer Id: %s, name: %s', customer.id, customer.name);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

tryGetFirst eagerly

getById eagerly

var rdb = require('rdb');

var Customer = rdb.table('_customer');
var Order = rdb.table('_order');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').guid().as('customerId');

Order.join(Customer).by('oCustomerId').as('customer');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(tryGetFirstOrderWithCustomer)
    .then(printOrder)
    .then(printCustomer)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function tryGetFirstOrderWithCustomer() {
    var filter = Order.customer.name.equal('John');
    var strategy = {customer : null};
    return Order.tryGetFirst(filter, strategy);
}

function printOrder(order) {
    if (!order) {
        console.log('order not found');
        return;
    }
    var format = 'Order Id: %s, Order No: %s, Customer Id: %s'; 
    var args = [format, order.id, order.orderNo, order.customerId];
    console.log.apply(null,args);
    return order.customer;
}

function printCustomer(customer) {
    if (!customer) 
        return;
    console.log('Customer Id: %s, name: %s', customer.id, customer.name);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

toJSON

var rdb = require('rdb');

var Order = rdb.table('_order');
var Customer = rdb.table('_customer');
var OrderLine = rdb.table('_orderLine');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').string().as('customerId');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').string().as('orderId');
OrderLine.column('lProduct').string().as('product');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var order_customer_relation = Order.join(Customer).by('customerId').as('customer');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    return Order.getById('b0000000-b000-0000-0000-000000000000');
}

function toJSON(order) {
    return order.toJSON(/*strategy*/);
    //default strategy, expand all hasOne and hasMany relations
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

toJSON with strategy

var rdb = require('rdb');

var Order = rdb.table('_order');
var Customer = rdb.table('_customer');
var OrderLine = rdb.table('_orderLine');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').string().as('customerId');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var order_customer_relation = Order.join(Customer).by('oCustomerId').as('customer');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrder)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrder() {
    return Order.getById('b0000000-b000-0000-0000-000000000000');
}

function toJSON(order) {
    var strategy = {customer : null, lines : null, deliveryAddress : null};
    return order.toJSON(strategy);
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

getMany

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getAllCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getAllCustomers() {
    return Customer.getMany();
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

getMany lazily

var rdb = require('rdb'),
    promise = require('promise');

var Order = rdb.table('_order');
var OrderLine = rdb.table('_orderLine');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getAllOrders)
    .then(printOrders)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getAllOrders() {
    return Order.getMany();
}

function printOrders(orders) {
    var printAllLines = [];
    orders.forEach(printOrder);

    function printOrder(order) {
        var format = 'Order Id: %s, Order No: %s'; 
        var args = [format, order.id, order.orderNo];
        console.log.apply(null,args);
        printAllLines.push(order.lines.then(printLines));
    }
    return promise.all(printAllLines);
}

function printLines(lines) {
    lines.forEach(printLine);

    function printLine(line) {
        var format = 'Line Id: %s, Order Id: %s, Product: %s'; 
        var args = [format, line.id, line.orderId, line.product];
        console.log.apply(null,args);
    }    
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

getMany eagerly

var rdb = require('rdb'),
    promise = require('promise');

var Order = rdb.table('_order');
var OrderLine = rdb.table('_orderLine');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getAllOrders)
    .then(printOrders)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getAllOrders() {
    var emptyFilter;
    var strategy = {lines : null};
    return Order.getMany(emptyFilter, strategy);
}

function printOrders(orders) {
    var printAllLines = [];
    orders.forEach(printOrder);

    function printOrder(order) {
        var format = 'Order Id: %s, Order No: %s'; 
        var args = [format, order.id, order.orderNo];
        console.log.apply(null,args);
        printAllLines.push(order.lines.then(printLines));
    }
    return promise.all(printAllLines);
}

function printLines(lines) {
    lines.forEach(printLine);

    function printLine(line) {
        var format = 'Line Id: %s, Order Id: %s, Product: %s'; 
        var args = [format, line.id, line.orderId, line.product];
        console.log.apply(null,args);
    }    
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

(many)ToJSON

var rdb = require('rdb');

var Order = rdb.table('_order');
var Customer = rdb.table('_customer');
var OrderLine = rdb.table('_orderLine');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').string().as('customerId');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var order_customer_relation = Order.join(Customer).by('customerId').as('customer');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrders)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrders() {
    return Order.getMany();
}

function toJSON(orders) {
    return orders.toJSON(/*strategy*/);
    //default strategy, expand all hasOne and hasMany relations
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

(many)ToJSON with strategy

var rdb = require('rdb');

var Order = rdb.table('_order');
var Customer = rdb.table('_customer');
var OrderLine = rdb.table('_orderLine');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').string().as('customerId');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var order_customer_relation = Order.join(Customer).by('oCustomerId').as('customer');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrders)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrders() {
    return Order.getMany();
}

function toJSON(orders) {
    var strategy = {customer : null, lines : null, deliveryAddress : null};
    return orders.toJSON(strategy);
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

update

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getById)
    .then(update)
    .then(getById) //will use cache
    .then(verifyUpdated)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getById() {
    return Customer.getById('a0000000-0000-0000-0000-000000000000');
}

function update(customer) {
    customer.name = 'Ringo'; 
}

function verifyUpdated(customer) {
    if (customer.name !== 'Ringo')
        throw new Error('this will not happen');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

update

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(insert)
    .then(getById) //will use cache
    .then(verifyInserted)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function insert() {
    var customer = Customer.insert('abcdef00-0000-0000-0000-000000000000')
    customer.name = 'Paul';
}

function getById() {
    return Customer.getById('abcdef00-0000-0000-0000-000000000000');
}

function verifyInserted(customer) {
    if (customer.name !== 'Paul')
        throw new Error('this will not happen');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

default values

var rdb = require('rdb');

buf = new Buffer(10);
buf.write('\u00bd + \u00bc = \u00be', 0);

var Customer = rdb.table('_customer');

/*unless overridden, numeric is default 0, 
string is default null, 
guid is default null,
date is default null,
binary is default null
booean is default false
*/                    

Customer.primaryColumn('cId').guid().as('id').default(null);
Customer.column('cName').string().as('name').default('default name');
Customer.column('cBalance').numeric().as('balance').default(2000);
Customer.column('cRegdate').date().as('registeredDate').default(new Date());
Customer.column('cIsActive').boolean().as('isActive').default(true);
Customer.column('cPicture').binary().as('picture').default(buf);


var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(insert)
    .then(print) 
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function insert() {
    var customer = Customer.insert('abcdef02-0000-0000-0000-000000000000')
    return customer.toJSON();
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

conventions

var rdb = require('rdb'),
    resetDemo = require('./db/resetDemo');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid(); //property name will also be cId
Customer.column('cName').string(); //property name will also be cName

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(insert)
    .then(print) 
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function insert() {
    var customer = Customer.insert('abcdef01-0000-0000-0000-000000000000')
    customer.cName = 'Paul';
    return customer.toJSON();
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

update a join relation

var rdb = require('rdb');

var Customer = rdb.table('_customer');
var Order = rdb.table('_order');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');
Order.column('oCustomerId').guid().as('customerId');

Order.join(Customer).by('oCustomerId').as('customer');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getById)
    .then(update)
    .then(verifyUpdated)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getById() {
    return Order.getById('b0000000-b000-0000-0000-000000000000');
}

function update(order) {
    var yokoId = '12345678-0000-0000-0000-000000000000';
    order.customerId = yokoId;
    return order.customer; 
}

function verifyUpdated(customer) {
    if (customer.name !== 'Yoko')
        throw new Error('this will not happen');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

update a hasOne relation

var rdb = require('rdb');

var Order = rdb.table('_order');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(insertDeliveryAddress)
    .then(verifyUpdated)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function insertDeliveryAddress() {
    var address = DeliveryAddress.insert('eeeeeeee-0000-0000-0000-000000000000');
    address.orderId = 'a0000000-a000-0000-0000-000000000000';
    address.name = 'Sgt. Pepper';
    address.street = 'L18 Penny Lane';
    return address.order;
}

function verifyUpdated(order) {
    return order.deliveryAddress.then(verifyUpdatedAddress);;
}

function verifyUpdatedAddress(deliveryAddress) {
    if (deliveryAddress.street !== 'L18 Penny Lane')
        throw new Error('this will not happen');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

update a hasMany relation

var rdb = require('rdb');

var Order = rdb.table('_order');
var OrderLine = rdb.table('_orderLine');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');

var db = rdb('postgres://postgres:postgres@localhost/test');
var orderIdWithNoLines = 'c0000000-c000-0000-0000-000000000000';

db.transaction()
    .then(insertOrderLine1)
    .then(insertOrderLine2)
    .then(verifyUpdated)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function insertOrderLine1() {
    var line = OrderLine.insert('eeeeeeee-0001-0000-0000-000000000000');
    line.orderId = orderIdWithNoLines;
    line.product = 'Roller blades';
    return line.order;
}

function insertOrderLine2() {
    var line = OrderLine.insert('eeeeeeee-0002-0000-0000-000000000000');
    line.orderId = orderIdWithNoLines;
    line.product = 'Helmet';
    return line.order;
}

function verifyUpdated(order) {
    return order.lines.then(verifyUpdatedLines);
}

function verifyUpdatedLines(lines) {
    if (lines.length !== 2)
        throw new Error('this will not happen');
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

equal

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.equal('John');
    //same as Customer.name.eq('John');   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

notEqual

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.notEqual('John');
    //same as Customer.name.ne('John');   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

not

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.equal('John').not();
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

lessThan

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.balance.lessThan(5000);
    //same as Customer.balance.lt(5000);   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s, balance : %s', customer.id, customer.name, customer.balance);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

lessThanOrEqual

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.balance.lessThanOrEqual(8123);
    //same as Customer.balance.le(8123);   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s, balance : %s', customer.id, customer.name, customer.balance);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

greaterThan

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.balance.greaterThan(5000);
    //same as Customer.balance.gt(5000);   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s, balance : %s', customer.id, customer.name, customer.balance);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

greaterThanOrEqual

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.balance.greaterThanOrEqual(8123);
    //same as Customer.balance.ge(8123);   
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s, balance : %s', customer.id, customer.name, customer.balance);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

between

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.balance.between(3000, 8123);
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s, balance : %s', customer.id, customer.name, customer.balance);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

in

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.in(['John', 'Yoko']);
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

startsWith

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.startsWith('Jo');
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

endsWith

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.endsWith('nny');
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

contains

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var filter = Customer.name.contains('ohn');
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

exists

var rdb = require('rdb');

var Order = rdb.table('_order');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrders)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrders() {
    var filter = Order.deliveryAddress.exists();
    return Order.getMany(filter);
}

function toJSON(orders) {
    return orders.toJSON();
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

or

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var john = Customer.name.equal('John');
    var yoko = Customer.name.equal('Yoko');
    var filter = john.or(yoko);

    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

and

var rdb = require('rdb');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cIsActive').boolean().as('isActive');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var isActive = Customer.isActive.equal(true);
    var highBalance = Customer.balance.greaterThan(8000);
    var filter = isActive.and(highBalance);
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

or alternative syntax

var rdb = require('rdb'),
    resetDemo = require('../db/resetDemo');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var john = Customer.name.equal('John');
    var yoko = Customer.name.equal('Yoko');
    var filter = rdb.filter.or(john).or(yoko);
    //alternatively rdb.filter.and(john).or(yoko);
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

and alternative syntax

var rdb = require('rdb'),
    resetDemo = require('../db/resetDemo');

var Customer = rdb.table('_customer');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cIsActive').boolean().as('isActive');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getFilteredCustomers)
    .then(printCustomers)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getFilteredCustomers() {
    var isActive = Customer.isActive.equal(true);
    var highBalance = Customer.balance.greaterThan(8000);
    var filter = rdb.filter.and(isActive).and(highBalance);
    //alternatively rdb.filter.or(isActive).and(highBalance);
    return Customer.getMany(filter);
}

function printCustomers(customers) {
    customers.forEach(printCustomer);

    function printCustomer(customer) {
        console.log('Customer Id: %s, name: %s', customer.id, customer.name);
    }
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

sub filter

var rdb = require('rdb');

var Order = rdb.table('_order');
var DeliveryAddress = rdb.table('_deliveryAddress');

Order.primaryColumn('oId').guid().as('id');
Order.column('oOrderNo').string().as('orderNo');

DeliveryAddress.primaryColumn('dId').guid().as('id');
DeliveryAddress.column('dOrderId').string().as('orderId');
DeliveryAddress.column('dName').string().as('name');
DeliveryAddress.column('dStreet').string().as('street');

var deliveryAddress_order_relation = DeliveryAddress.join(Order).by('dOrderId').as('order');
Order.hasOne(deliveryAddress_order_relation).as('deliveryAddress');

var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrders)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrders() {
    var filter = Order.deliveryAddress.street.startsWith('Node');
    return Order.getMany(filter);
}

function toJSON(orders) {
    return orders.toJSON();
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

composite filter

var rdb = require('rdb');

var Order = rdb.table('_order');
var Customer = rdb.table('_customer');
var OrderLine = rdb.table('_orderLine');

Order.primaryColumn('oId').guid().as('id');
Order.column('oCustomerId').guid().as('customerId');
Order.column('oOrderNo').string().as('orderNo');

Customer.primaryColumn('cId').guid().as('id');
Customer.column('cIsActive').boolean().as('isActive');
Customer.column('cBalance').numeric().as('balance');
Customer.column('cName').string().as('name');

OrderLine.primaryColumn('lId').guid().as('id');
OrderLine.column('lOrderId').guid().as('orderId');
OrderLine.column('lProduct').string().as('product');

Order.join(Customer).by('oCustomerId').as('customer');

var line_order_relation = OrderLine.join(Order).by('lOrderId').as('order');
Order.hasMany(line_order_relation).as('lines');



var db = rdb('postgres://postgres:postgres@localhost/test');

db.transaction()
    .then(getOrders)
    .then(toJSON)
    .then(print)
    .then(rdb.commit)
    .then(null, rdb.rollback)
    .then(onOk, onFailed);

function getOrders() {
    var isActive = Order.customer.isActive.eq(true);
    var didOrderCar = Order.lines.product.contains('car');
    var filter = isActive.and(didOrderCar);
    //alternatively rdb.filter.and(isActive).and(didOrderCar);
    return Order.getMany(filter);
}

function toJSON(orders) {
    return orders.toJSON();
}

function print(json) {
    console.log(json);
}

function onOk() {
    console.log('Success');
    console.log('Waiting for connection pool to teardown....');
}

function onFailed(err) {
    console.log('Rollback');
    console.log(err);
}

Release notes

0.2.3
Reformatted documentation. No code changes.