blueprints.rb

require 'faker'

Sham.name  { Faker::Name.name }
Sham.email { Faker::Internet.email }
Sham.title { Faker::Lorem.sentence }
Sham.body  { Faker::Lorem.paragraph }

User.blueprint do
  name
  email
end

Post.blueprint do
  title
  author
  body
end

Comment.blueprint do
  post
  author_name  { Sham.name }
  author_email { Sham.email }
  body
end