rails memcached dalli Marshalling error for key

rubyonrails-talk
1

I have such action in my controller:

def my

  @user = Ads::User\.find current\_user\.id

  @postings = Rails\.cache\.fetch\("@user\.postings\.includes\(:category\)"\) do

    @postings = @user\.postings\.includes\(:category\)

  end

end

I'm trying to cache @postings and get such error:

This would try and cache the activerecord::relation object rather the actual query results. You need to force execution of the query, ie

Rails.cache.fetch("@user.postings.includes(:category)") do   @user.postings.includes(:category).to_a end

Fred