modella-collector

modella plugin to enable collection attributes.

Declaration

var modella = require('modella');
var Child = modella('Child').attr('name');
var Mom = modella('Mom').attr('children', {type: [Child]}).use(collector);

var mom = new Mom({children: [
  {name: 'Pete'}, // Collection models can be initialized with data
  new Child({name: 'jack'}) // or with instance
]});

This plugin is inspired by this discussion

Playing with Collections

Collection#get(index)

Returns a model at a given index.

mom.get('children').get(0).name(); // Pete

Collection#first()

Returns the first model.

mom.get('children').first().name(); // Pete

Collection#last()

Returns the last model.

mom.get('children').last().name(); // Jack

Collection#add(model)

Adds a model

mom.get('children').add({name: 'Mickael'}); // With data
mom.get('children').add(new Child({name: 'John'})); // With instance

Collection#each(fn)

Iterates over the collection with the given function.

mom.get('children').each(function (child) {
  console.log(child.name());
});

Collection#every(fn)

Iterates over the collection. Returns true if every predicates called returns true.

mom.get('children').every(function (child) {
  return child.name().length > 3;
});

Collection#some(fn)

Iterates over the collection. Returns true if at least one predicate called returns true.

mom.get('children').some(function (child) {
  return child.name() === 'John';
});

dawee/modella-collector