Graphiti

Rudimentary graph model/entity plugins. This implementation works with couchdb, but the interface is flexible enough to support any db.

Install

npm i graphiti

Model/Entity Creation

var BaseModel = require('graphiti').BaseModel;
var BaseEntity = require('graphiti').BaseEntity;

var Dog = BaseModel.extend({
    schema: {
        name: {
            required: true,
            type: 'string'
        }
    }
});

var DogPound = BaseEntity.extend({
    schema: {
        name: {
            required: true,
            type: 'string'
        },
        city: {
            required: true,
            type: 'string'
        },
        state: {
            required: true,
            type: 'string'
        }
    },
    graph_schema: {
    "id": "/graph",
    "type": "object",
    "properties": {
      "model_type": {
        "enum": [
          "dog"
        ],
        "required": true
      }
    }
  }
});

Model Usage

Configure it just like any other mixdown plugin:

{
  "plugins": {
    "dogs": {
      "module": "dog",
      "options": {
        "couchdb": {
          "url": "http://localhost:5984",
          "database": "dogs"
        }
      }
    },
    "dog_pound": {
      "module": "./dog_pound.js",
      "options": {
        "couchdb": {
          "url": "http://localhost:5984",
          "database": "dogs"
        }
      }
    }
  }
}

# Insert Data

app.dogs.save({ name: 'Snoop' });

app.dogs.save({ name: 'Dre' });

var dre = app.dogs.get( ... ); //async signature omitted for brevity var snoop = app.dogs.get( ... ); //async signature omitted for brevity

var lbc = app.dog_pound.new_entity({ name: 'LBC', city: 'Long Beach', state: 'CA' });

lbc.add_content(dre); lbc.add_content(snoop); app.dog_pound.save(lbc);

# Fetch Data

Once attached to an app, you just call it:

app.dogs.get(snoop_id, function(err, snoop_dog) {
    console.log(snoop_dog.view_model());
});

app.dog_pound.get(lbc_id, function(err, record) {
    
    app.dog_pound.hydrate(record, function(err, lbc) {
        console.log(lbc.view_model());
    });

});