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lian

v0.11.1

Published

Simple object persistence with MongoDB

Downloads

33

Readme

Lian

Simple object persistence for node.js with MongoDB.

var lian = require('lian')('localhost/mydb');

function Person (name) {
    lian(this, 'person');
    this.name = name;
}

Person.prototype.getGender = function () {
    return this.gender;
}

var john = new Person('John Smith');
john.gender = "male";

john.save();

Create a projection of Person to find the instance saved above.

var john = new Person('John Smith');
john.find().then(function (results) {

    john = results[0];
    john.name; // "John Smith"
    john.getGender(); // "male"
});

Make some changes to persist.

john.name = "John Anthony Smith";
john.save();

Decoupled, lian's Store object can be used directly.

var Store = require('lian').Store,
    lian  = require('lian');

function Person (name) {
    lian(this, 'person');
    this.name = name;
}

var steve = new Person('steve');

typeof steve.insert // "undefined"

var store = new Store('localhost/mydb');
store.insert(steve);

Goals

  • Avoid writing result to object mapping code over and over.
  • Instance based connections, multiple connections within the same process.
  • All asynchronous operations should return a promise.
  • Store provides an in-memory alternative, for testing.

Development Build Status

Lian uses monk to talk to MongoDB and promised-io for futures.

Clone the repo...

git clone git://github.com/richardhodgson/lian.git

Use npm to install dependencies.

cd lian && \
npm install --dev

Run the tests.

make test

The tests mock out monk, there are integration tests expecting a MongoDB instance running on localhost:27017. They will create a lian-integration database.

make integration-test