machinist_teaser.rb

# This is a teaser for a plugin I'm working on to provide an alternative
# to ActiveRecord fixtures.
#
# It's similar to ThoughtBot's Factory Girl, but I think the syntax is
# a lot nicer.
#
# The models below are the canonical Rails blog examples, i.e. a Post
# has_may Comments.
#
# I'm using the very cool Faker gem to make up values for fields.

Post.blueprint do
  title Faker::Lorem.sentence
  body  Faker::Lorem.paragraph
end

Comment.blueprint do
  post
  author_name  Faker::Name.name
  author_email Faker::Internet.email
end

# Make a post.
Post.make

# Make a post with a specific title.
Post.make(:title => 'A Particular Title')

# Make a comment and a post.
Comment.make

# Make a post with a few comments.
post = Post.make
3.times { Comment.make(:post => post) }

# Provide a method on Post to make a post with a few comments.
class Post
  def self.make_with_comments(attributes = {})
    returning make(attributes) do |post|
      3.times { Comment.make(:post => post) }
    end
  end
end

post = Post.make_with_comments