Cannot call method '_onModelEvent' of undefined

[mattiassvedhem]

So I get this error when I'm taking a preexisting model and saving it to a collection:

Uncaught TypeError: Cannot call method '_onModelEvent' of undefined
_.extend.updatebackbone.relational.js:239
Backbone.RelationalModel.Backbone.Model.extend.setbackbone.relational.js:1122
_.extend.save.options.successbackbone.js:385
jQuery.Callbacks.firejquery.js:1047
jQuery.Callbacks.self.fireWithjquery.js:1165
donejquery.js:7400
jQuery.ajaxTransport.send.callback

@collection.create(@model)

The model is originally created from the collection:

@model = new @collection.model()

The collection that I'm adding to has this in it's model:

  relations: [
    type: Backbone.HasMany
    key: 'rows'
    relatedModel: 'sm.Models.Row'
    collectionType: 'sm.Collections.Rows'
    includeInJSON: false
    reverseRelation: {
      key: 'section'
      includeInJSON: 'id'
    }
  ]

The model that I'm adding has this (recursively embeds itself)

  {
    type: Backbone.HasMany
    key: 'rows'
    relatedModel: 'sm.Models.Row'
    collectionType: 'sm.Collections.Rows'
    reverseRelation: {
      key: 'parent'
      includeInJSON: false
    }
  }]

It seems like I get the error when the ajax POST is returned from the server.. Any Ideas why?
Thanks.

[mattiassvedhem]

I think this is related to #91 since I'm also using coffeescript. When was the change to reverseRelation done?

I've tried one of the workarounds discussed in #91. To initialize a blank placeholder model, however I get this error when I do that:

Uncaught TypeError: Cannot call method 'bind' of undefined
Backbone.Relationbackbone.relational.js:323

[mattiassvedhem]

Ok, seems like this is not an issue with Coffeescript class syntax, tried to use Backbone.RelationalModel.extend
syntax and get the same error. It's when I get a response back from the server (I respond with the persisted row, maybe I shouldn't).

[mattiassvedhem]

Ok so in this line var coll = this.getCollection( model ); model is the row model, correctly updated with the server id.
But somehow coll is returned as undefined. this is a Backbone.store object with the correct collections.

So it seems to me that the model is never stored in it's store location

[mattiassvedhem]

Oh, and it's the same when I'm trying to destroy a model:

Uncaught TypeError: Cannot call method 'unbind' of undefined

  Backbone.Relational.store.getCollection( this.instance )
  .unbind( 'relational:remove', this._modelRemovedFromCollection );

[DouweM]

Try walking through #getCollection() to see why it returns undefined and not the collection!

[PaulUithol]

Are you getting anywhere with this? It's a bit hard to debug for us by just getting a description of the symptoms.. You could try isolating your issue into a jsfiddle? Maybe you'll find your problem as well by cutting your code down for that.

[mattiassvedhem]

The error was on my part, I used _.bindAll @ and didn't explicitly tell which methods to bind, resulting in the getCollection method (I guess) being bound to the view.

Thanks for an awesome project, keep it up!