Random jokes in a skit (activerecord)

Question

I am working on populating my database with test data using populate.rake:

Repertoire.includes(:jokes).each do |r|
  @jokes = r.jokes
  Skit.populate 8..12 do |skit|
    skit.joke_id = @jokes[rand(@jokes.count)].id
  end
end

This is giving me a RuntimeError: Called id for nil.

How can I populate a skit with random jokes?

Answer 1

Not sure if this will fix your problem but Ruby has a rand method for arrays so you should be able to call @jokes.rand.id instead. Seems like that would simplify things and maybe even fix your error.

Answer 2

sort_by {rand} should sort your array of jokes.

Or, there is also doing an .order("rand()/random()") (depending on your db) in your Repertoire query and putting a limit on the query.