Spine Nested Models

survey.coffee

Spine = require('spine')
require('spine/lib/relation')

class Survey extends Spine.Model
  @configure 'Survey', 'name', 'title', 'description'
  @hasMany 'questions', Question

  @fromJSON: (objects) ->
    return unless objects
    if typeof objects is 'string'
      objects = JSON.parse(objects)

    survey = new Survey(objects)
    
  constructor: (objects)->
    super
    survey.questions().create(q) for q in objects.questions

class Question extends Spine.Model
  @configure 'Question', 'name', 'title', 'description'
  @belongsTo 'survey', Survey
  @hasMany 'choices', Choice

  constructor: (objects)->
    super
    survey.choices().create(c) for c in objects.choices
  
class Choice extends Spine.Model
  @configure 'Choice', 'name', 'title', 'value'
  @belongsTo 'question', Question

module.exports.Survey = Survey
module.exports.Question = Question
module.exports.Choice = Choice