I am having some trouble when I create a new model form json, with nested attributes that should be parsed as a collection. Here I show how I get to the error:
(Any help appreciated)
1) I create a user like this
user = new App.Models.User( {"email":"tom@gmail.com","id":1,"user_cities_attributes":[{"city_id":431,"user_action":"to-visit","user_id":1}] }
2) and then I check in the console what happened, the collection did not get created. :S
user.get('user_cities')
> undefined # where is my collection?! :(
user.get('user_cities_attributes')
> [Object] # mmm weird...
If I try after to add a new model to the collection...
cities = new App.Collections.CitiesCollection()
cities.fetch()
userCity = new App.Models.UserCity( { user: user, city: cities.first(), user_action: "to-visit" } )
now everything seems to be fine... what happened????
user.get('user_cities')
> Backbone.Collection {length: 20, models: Array[20], _byId: Object, model: function, user: User…}
user.get('user_cities_attributes')
undefined
MODELS
class App.Models.User extends Backbone.RelationalModel
paramRoot: 'user'
urlRoot: 'users'
defaults:
name: null
class App.Models.UserCity extends Backbone.RelationalModel
paramRoot: 'user_city'
urlRoot: 'user_cities'
defaults:
user_action: null
relations: [{
type: Backbone.HasOne,
key: 'user',
relatedModel: 'App.Models.User',
collectionType: 'App.Collections.UsersCollection',
keySource: 'user_id',
includeInJSON: 'id',
reverseRelation: {
key: 'user_cities',
keySource: 'user_cities_attributes',
includeInJSON: 'id'
}
},
{
type: Backbone.HasOne,
key: 'city',
relatedModel: 'App.Models.City',
collectionType: 'App.Collections.CitiesCollection',
includeInJSON: 'id',
keySource: 'city_id',
reverseRelation: {
key: 'users',
includeInJSON: 'id'
}
}]
class App.Models.City extends Backbone.RelationalModel
paramRoot: 'city'
urlRoot: 'cities'
defaults:
name: null
relations: [{
type: Backbone.HasMany,
key: 'places',
relatedModel: 'App.Models.Place',
collectionType: 'App.Collections.PlacesCollection',
keySource: 'places_attributes',
# parse: true,
includeInJSON: 'id',
autoFetch: true,
reverseRelation: {
key: 'city',
includeInJSON: 'id'
}
# 'relatedModel' is automatically set to 'Zoo'; the 'relationType' to 'HasOne'.
}]