Feature: support manually specified sideload data in ActiveModel::Serializers

[Doug Puchalski]

I have a need to sideload resources that are indirectly associated with the resources being loaded.

{

  transactions: [

    {

      name: 'Deposit',

      date: '01/01/2014',

      amount: '123.45'

    }

  ],

  balances: [

    {

      date: '01/01/2014',

      amount: '123.45'

    }

  ],

  meta: {

    // ...

  }

}

The balances here are not directly linked to the primary resource being loaded, the transactions. But I'm always going to want them included. I'm not sure making a separate API is the solution, when the two calls will always be made in succession.

I have implemented a manual sideband feature where I can specify another hash to be added alongside the root, similar to `meta`'. 

Would this be welcome as a PR?

[Adrian Mugnolo]

Hi Doug,

This could or could not be a valid PR for AMS, depending on whether we go with JSON API or standardized conformance or custom formats support. Please see the ongoing discussion: https://groups.google.com/forum/?fromgroups=#!topic/rails-api-core/pGSWLiWUsCw. Particularly, I'm not sure how indirectly related resources are treated in JSON API and other standard formats.

Regards