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cassandrom

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Cassandra object modeling tool for Node.Js like mongoose

// repository documentation

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# Cassandrom

Cassandrom is a Cassandra object modeling tool for Node JS (like mongoose).

# Installation

Install [node.js](http://nodejs.org/) and [cassandra](http://cassandra.apache.org/download/)

```sh
$ npm install cassandrom
```

# Connecting to Cassandra
To use cassandrom first create connection.

```js
var cassandrom = require('cassandrom');

cassandrom.createConnection({ contactPoints: [
  'localhost'
  // , 'another-host',
  ], localDataCenter: 'datacenter1', keyspace: 'keyspace'});

```

# Defining a Schema

```js
var schema = new cassandrom.Schema({
  userId:   { type: cassandrom.UUIDType, required: true, default: cassandrom.uuid },
  fullName: { type: String, required: true, trim: true },
  username: { type: String, required: true, unique: true, trim: true },
  email:    { type: String, required: true, unique: true, trim: true },
  password: { type: String, required: true },
  date:     { type: Date, default: Date.now, required: true }

}, ['userId']);
```

# Get Model and Start work

```js
var User = cassandrom.model("User", schema);
```

# Create and save Model

```js
User.create({
  fullName: 'John Doe',
  username: 'john',
  email: 'john@doe.com',
  password: 'doedoe'
}, function (error, user) {
  if(error) {
    console.log('Error during user save: ' + error);
  } else {
    console.log('User saved ' + user.userId + ' date ' + user.date);
  }
});
```

# Searching
Find all records match the certain field.
```js
User.find({ username: name }, function(error, results) {
  console.log('Find ' + results.length + ' users');
});
```

Find only one record.
```js
User.findOne({ username: name }, function(error, user) {
  console.log('Find found ' + user);
});
```

# Add New Methods

```js
schema.statics.findByUserame = function(name, callback) {
  this.findOne({ username: name }, callback);
};

schema.statics.findById = function(id, callback) {
  this.findOne({ userId: id }, callback);
};
```

# Promise
```js
User.findOne({ username: name })
    .then(function(user)) {

}
    .catch(function(error) {

});
```

# ES6
```js
const user = await aUser.findOne({ username: name });
```

# Cassandra Driver access
DataStax [nodejs-driver](https://github.com/datastax/nodejs-driver) for Apache Cassandra were used.

# Creators

_Kiril Menshikov_ - https://twitter.com/kiril

# Copyright and license
Code released under the Apache 2.0 license.

cassandrom

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