Rails + FactoryGirl: What is the "evaluator" in after(:create) do |something, evaluator|? -

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i've been using factorygirl while now, still don't know evaluator means in after create hook:

factory :products_color_with_variants   after(:create) |pc, evaluator|     pc.variants << factorygirl.create(:variant)   end end

i've been using first argument block, object created. evaluator , can use for?

this can you. can access transient attributes it


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