Rails 4: (acts as taggable) creating a tag cloud based only on a specific users posts -

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i attempting create tag cloud based on users microposts (obvious counts on each tag user) using in controller 

          @tags = @user.microposts.tag_counts_on(:tags)

and in view

         <% tag_cloud @tags, %w[xxs xs s m l xl xxl]  |tag, css_class|  %>          <%= link_to tag, questions_by_tag_user_path(@user, tag: tag.name), class: css_class %>          <% end %>

the problem is, having checked on , over, returning tag cloud sizes based on tag counts based on microposts , not ones @user.

i can't see why , documentation deprecated:

        user.find(:first).posts.tag_counts_on(:tags)

any thoughts?

this work, if call tag_counts_on on posts scope:

post.where(user_id: 1).tag_counts_on(:tag)

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