node package manager

node-model

W.I.P minimalistic extensible model component.

model

W.I.P minimalistic extensible model component.

API

model(name)

Create a new model with the given name.

var model = require('model');
var User = model('User');

.attr(name, [meta])

Define an attribute name with optional meta data object.

var model = require('model');
 
var Post = model('Post')
  .attr('id')
  .attr('title')
  .attr('body')
  .attr('created_at')
  .attr('updated_at')

With meta data used by plugins:

var model = require('model');
 
var Post = model('Post')
  .attr('id', { required: true, type: 'number' })
  .attr('title', { required: true, type: 'string' })
  .attr('body', { required: true, type: 'string' })
  .attr('created_at', { type: 'date' })
  .attr('updated_at', { type: 'date' })

.validate(fn)

TODO: validation callback docs

.use(fn)

TODO: plugin docs

.url([path])

Return base url, or url to path.

User.url()
// => "/users" 
 
User.url('add')
// => "/users/add" 

#ATTR()

"Getter" function generated when Model.attr(name) is called.

var Post = model('Post')
  .attr('title')
  .attr('body')
 
var post = new Post;
post.title('Ferrets')
post.body('Make really good pets')

#ATTR(value)

"Setter" function generated when Model.attr(name) is called.

var Post = model('Post')
  .attr('title')
  .attr('body')
 
var post = new Post({ title: 'Cats' });
 
post.title()
// => "Cats" 
 
post.title('Ferrets')
post.title()
// => "Ferrets" 
  • Emits "change" event with (name, value, previousValue).
  • Emits "change ATTR" event with (value, previousValue).
post.on('change', function(name, val, prev){
  console.log('changed %s from %s to %s', name, prev, val)
})
 
post.on('change title', function(val, prev){
  console.log('changed title')
})
 

#isNew()

Returns true if the model is unsaved.

#toJSON()

Return a JSON representation of the model (its attributes).

#has(attr)

Check if attr is non-null.

#get(attr)

Get attr's value.

#set(attrs)

Set multiple attrs.

user.set({ name: 'Tobi', age: 2 })

#changed([attr])

Check if the model is "dirty" and return an object of changed attributes. Optionally check a specific attr and return a Boolean.

#error(attr, msg)

Define error msg for attr.

#isValid()

Run validations and check if the model is valid.

user.isValid()
// => false 
 
user.errors
// => [{ attr: ..., message: ... }] 

#url([path])

Return this model's base url or relative to path:

var user = new User({ id: 5 });
user.url('edit');
// => "/users/5/edit" 

#save(fn)

Save or update and invoke the given callback fn(err).

var user = new User({ name: 'Tobi' })
 
user.save(function(err){
  
})

Emits "save" when complete.

#destroy([fn])

Destroy and invoke optional fn(err).

Emits "destroy" when successfully deleted.

Links

License

MIT