Error sideloading JSON for act-as-taggable tags using active-model-serializers

Question

In a Ruby 2/Rails 4 app, I am trying to use acts-as-taggable-on in conjunction with active_model_serializers in order to create a JSON API that would output my tags along with o

Answer 1

Fixed! Turns out to sideload the tags, the corresponding serializer must be defined. I did not know this, because the documentation seems to imply that having a serializer is optional, and some default will be used in the absence of one. Apparently this is not the case if you wish to use the include: true option. Key in sight came from here, thanks very much!

For completeness, I'll show what I did. I created tag_serializer.rb with the following code:

module ActsAsTaggableOn
  class TagSerializer < ActiveModel::Serializer
    attributes :id, :name
  end
end

and now my JSON:

{
   "tags": [
      {
         "id": "a33fc396-2428-11e3-8eeb-0800270f33f4",
         "name": "test"
      }
   ],
   "documents": [
      {
         "id": "c41460fa-2427-11e3-8702-0800270f33f4",
         "tag_ids": [
            "a33fc396-2428-11e3-8eeb-0800270f33f4"
         ]
      }
   ]
}