knex-base

ORM modeled after Rails' ActiveRecord and built on knex

Introduction

knex-base was created to bring the simplicity of ActiveRecord together with the power of Knex

Getting Started

You will have to begin by install Knex and one of its' supported database drivers as peer dependencies.

$ npm install knex --save
$ npm install knex-base --save

# The current version only supports sqlite3
$ npm install sqlite3 --save

Now you must give knex-base your database settings.

const knex = require('knex');
const Base = require('knex-base');

const dbSettings = {
    client: 'sqlite3',
    connection: {
        filename: './dev.sqlite3'
    },
    useNullAsDefault: true
};

Base.establishConnection(dbSettings);

// create models and relationships

class User extends Base {

}

// adds function to obj proto to retrieve appropriate records
User.hasMany('posts');
User.hasMany('likes', { through: 'posts' })

class Post extends Base {

}

// pluralization matters
Post.belongsTo('user');

class Like extends Base {

}

Like.belongsTo('post');

Examples

Creating and saving records:

// create instance and save it
const user = new User({
    name: 'john',
    email: '[email protected]',
    company: 'exampleCompany'
});
user.save();

// creates and saves in one line
const user2 = User.create({
    name: 'Jane',
    email: '[email protected]',
    company: 'exampleCompany'
});
// => instance of User class

Finding and updating existing records:

const user = User.find(1);
// => instance of User class with that id

const posts = user.posts();
// => array of objects associated with that user's id.
// does not return instances of Post class

const post = new Post(posts[0]);
post.user();
// => object associated with that post's id.
// does not return instance of User class

user.update({firstName: 'JOHN'});
// => updates record and returns new object

// deletes record in db with that id
user.delete();

const user2 = User.findBy({name: 'john'});
// => instance of User class with that property

User.where({company: 'exampleCompany'});
// => array of records with those properties

User.first();
// => first record as a User object

User.second();
// => second record etc., up to tenth()

User.all();
// => array of all records as User objects