Acts As Taggable On

Question

I'm having problems getting the acts-as-taggable-on gem working properly.

I have a model:

class Resource < ActiveRecord::Base
  acts_as_taggable

end

I can add tags to it, and though its tag_list is populated:

$ a = ArchiveResource.new()
$ a.tag_list = ["one", "two", "three"]
$ a.tag_list # ["one", "two", "three"]

However, its tag association is not:

$ a.tags # []

If I check for all the tags, I can see they are being created:

$ ActsAsTaggableOn::Tag.all #<ActsAsTaggableOn::Tag id: 1, name: "one">,
                            #<ActsAsTaggableOn::Tag id: 2, name: "two">,
                            #<ActsAsTaggableOn::Tag id: 3, name: "three">

And if I check the model's taggings association I can see they exist there:

$ a.taggings #<ActsAsTaggableOn::Tag id: 1, name: "one">,
             #<ActsAsTaggableOn::Tag id: 2, name: "two">,
             #<ActsAsTaggableOn::Tag id: 3, name: "three">

Looking more closely at a call to a.tags.all I can see from the query that there is a mismatch:

  ActsAsTaggableOn::Tag Load (0.9ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = 1 AND "taggings"."taggable_type" = 'ArchiveResource' AND (taggings.context = ('tags'))

However the taggings_context of the model's Taggings are all set to tag singular, so the query always fails:

<ActsAsTaggableOn::Tagging id: 1, tag_id: 1, taggable_id: 1, taggable_type: "Resource", tagger_id: nil, tagger_type: nil, context: "tag", created_at: "2013-09-10 17:12:20
<ActsAsTaggableOn::Tagging id: 2, tag_id: 1, taggable_id: 1, taggable_type: "Resource", tagger_id: nil, tagger_type: nil, context: "tag", created_at: "2013-09-10 17:12:20
<ActsAsTaggableOn::Tagging id: 3, tag_id: 1, taggable_id: 1, taggable_type: "Resource", tagger_id: nil, tagger_type: nil, context: "tag", created_at: "2013-09-10 17:12:20

If I run through all the Taggables and set context to tags, everything works:

ActsAsTaggableOn::Tagging.all.each{|t|t.context = "tags"; t.save!}

So why is this happening. Is it a bug or am I doing something wrong?

Answer 1

Looks like the default implementation is broken. By explicitly declaring the tags as :tags everything works OK:

  acts_as_taggable_on :tags