Forest Rails - Admin API - Override on the records list for a Smart Action context

forest_smart_action_reference_field_options.rb

# /lib/forest_liana/collections/movie.rb
class Forest::Movie
  include ForestLiana::Collection

  collection :Movie

  action 'Approve comment', fields: [{
    field: 'comment',
    type: 'Number',
    reference: 'Comment.id',
    widget: 'belongsto select'
  }]
end

# /lib/forest_liana/controllers/comment_controller.rb
if ForestLiana::UserSpace.const_defined?('CommentController')
  ForestLiana::UserSpace::CommentController.class_eval do
    alias_method :index_default, :index

    def index
      if request.params && !request.params['searchExtended'].nil?
        # NOTICE: Seach for collection list, keep the default behaviour.
        index_default
      else
        movie_id = request.headers.env['HTTP_REFERER'].match(/record\/[^\/]*\/([^\/]*)\//)
        movie_id = movie_id[1] if movie_id && movie_id[1]

        comments = Comment.where({ movie_id: movie_id })
        render json: serialize_models(comments)
      end
    end
  end
end