Super lightweight node.js ActiveRecord ORM layer for FoundationDB
npm install atomicrecord
AtomicRecord is a super lightweight node.js ActiveRecord ORM layer for FoundationDB.
This module is still early alpha and work is in progress. All contributions are welcome.
#### Create AtomicRecord Class
`` js
var AtomicRecord = require('atomicrecord');
var Person = AtomicRecord({
database: 'myDatabaseName',
dataset: 'people',
partition: false,
primaryKey: {
getKeyFields: function () {
return ['timestamp', 'id'];
},
getDirectoryFields: function () {
return ['region'];
}
},
fields: {
firstName: 'f',
lastName: 'l',
gender: 'g',
age: 'a',
region: 'r',
contacts: 'c',
enabled: 'e',
timestamp: 't'
}
});
`
#### Transactional Save
` js
function complete(err, person) {
if (err) {
console.error(err);
}
else {
console.log('transaction complete: person saved', person);
}
}
function transaction(tr, callback) {
// create person instance
var person = new Person();
person.firstName = 'John';
person.lastName = 'Smith';
person.gender = 'M'
person.age = 30
person.region = 'USA';
person.contacts = ['+1-212-555-1234', '+1-917-555-6789'];
person.timestamp = new Date();
person.save(tr, callback);
}
Person.doTransaction(transaction, complete);
`
#### Non-Transactional Save
` js
// create person instance
var person = new Person();
person.firstName = 'John';
person.lastName = 'Smith';
person.gender = 'M'
person.age = 30
person.region = 'USA';
person.contacts = ['+1-212-555-1234', '+1-917-555-6789'];
person.timestamp = new Date();
person.save(function (err, p) {
if (err) {
console.error(err);
}
else {
console.log('person saved', p);
}
});
`
#### Transactional AtomicQueue Batch Save
` js
function complete(err) {
if (err) {
console.error(err);
}
else {
console.log('transaction complete');
}
}
function transaction(tr, callback) {
// create person instances with initializers
var john = new Person({
firstName: 'John',
lastName: 'Smith',
gender: 'M',
age: 30,
region: 'USA',
contacts: ['+1-212-555-1234', '+1-917-555-6789'],
timestamp: new Date()
});
var sarah = new Person({
firstName: 'Sarah',
lastName: 'Jones',
gender: 'F',
age: 25,
region: 'Europe',
contacts: '+44-207-1234-5678',
timestamp: new Date()
});
var people = [john, sarah];
// batch save every 1sec
var queue = new AtomicRecord.Queue(people);
queue.on('saved', function (count) {
console.log('saved', count);
});
queue.on('error', function (err) {
console.error(err);
});
queue.on('recordsaved', function (record) {
console.log('record saved');
console.log('unaliased document', record.toDocument());
console.log();
console.log('aliased document', record.toDocument(true));
console.log();
});
queue.save(tr, callback);
}
Person.doTransaction(transaction, complete);
`
#### Non-Transactional AtomicQueue Batch Save
` js
// batch save every 1sec
var queue = new AtomicRecord.Queue(people, { batchSaveDelay: 1000 });
queue.on('saved', function (count) {
console.log('saved', count);
});
queue.on('error', function (err) {
console.error(err);
});
queue.on('recordsaved', function (record) {
console.log('record', record);
});
// continuously push records into the queue for processing
for (var i = 0; i < 10000; i++) {
queue.add(people[i]); // people is a pseudo-array
}
`
#### Transactional Find
` js
function complete(err) {
if (err) {
console.error(err);
}
else {
console.log('transaction complete')
}
}
function transaction(tr, callback) {
var finder = Person.find({ region: 'USA' });
finder.on('data', function (data) {
for (var i = 0; i < data.length; i++) {
var record = data[i];
console.log('keySize', record.keySize);
console.log('valueSize', record.valueSize);
console.log('record', record);
console.log()
}
});
finder.on('error', function (err) {
console.error('err', err);
});
finder.on('continue', function () {
tr.options.setReadYourWritesDisable();
});
finder.on('end', function () {
console.log('end');
callback(null);
});
finder.execute(tr, 'array');
}
Person.doTransaction(transaction, complete);
`
#### Non-Transactional Find
` js
var finder = Person.find({ region: 'USA' });
finder.on('data', function (data) {
for (var i = 0; i < data.length; i++) {
var record = data[i];
console.log('keySize', record.keySize);
console.log('valueSize', record.valueSize);
console.log('record', record);
console.log()
}
});
finder.on('error', function (err) {
console.error('err', err);
});
finder.on('end', function () {
console.log('end');
callback(null);
});
finder.execute('array');
`
Finalize Indexing
Polish the Finder class and iteratorTypes
Relational data
npm install atomicrecord
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