EmberJS hasMany association fetch not working properly

Working on an app that has events and each event has many images

Here is the association:

images: DS.hasMany("event-image", { async: true })

The EventImage Model:

`import DS from 'ember-data'`

EventImage = DS.Model.extend
  event: DS.belongsTo("event")

  ### NATURAL ATTRIBUTES ###
  imageUrl: DS.attr("string", { defaultValue: "" })
  fileName: DS.attr("string")
  fileSize: DS.attr("string")
  primary: DS.attr("boolean", { defaultValue: false })
  featured: DS.attr("boolean", { defaultValue: false })

`export default EventImage`

When visiting /events/1722/edit, I am [trying to] display the images like so:

  <div class="field">
    <label class="label label__text">More images</label>

    
      Select additional event photos (10 max).
    
  </div>

The JSON API response, returns an attribute that looks like:

"image_ids": [
  2474,
  2469,
  2468
]

When the page loads, I can see the three images on the page, but when attempting to fetch data to load each image, the API route that is called is /api/event_images/2469. I need to add on the event_id query param (or even better, have event_images nested underneath events so that the API call is /events/:event_id/event_images).

I am on EmberJS v1.10 and am using ActiveModelAdapter. That looks like this:

`import Ember from 'ember'`
`import DS from 'ember-data'`


ApplicationAdapter = DS.ActiveModelAdapter.extend
  host: window.EmberENV.apiURL
  headers:
    "Accept" : "application/json, text/javascript; q=0.01"

`export default ApplicationAdapter`

I'm an EmberJS newb, dropped into this project, so my apologies here, trying to play catch up.