Seeding database from YAML - ruby-on-rails

Question

I'm ruby-newbie and i need to seed my database from YAML. After loading YAML in seeds.rb i got this array of hash :
{"projects"=>[{"title"=>"Family", "todos"=>[{"text"=>"buy a milk", "isCompleted"=>false},
{"text"=>"Change oil in engine", "isCompleted"=>false},
{"text"=>"To send the letter", "isCompleted"=>true},
{"text"=>"To drink smt", "isCompleted"=>false}, {"text"=>"Buy t-shirt", "isCompleted"=>false}]},
{"title"=>"Job", "todos"=>[{"text"=>"Call chief", "isCompleted"=>true},
{"text"=>"To send documents", "isCompleted"=>true},
{"text"=>"Make todolist", "isCompleted"=>false}]},
{"title"=>"Other", "todos"=>[{"text"=>"To call friend", "isCompleted"=>false},
{"text"=>"Prepare for trip", "isCompleted"=>false}]}]}
My code:
seed_file = Rails.root.join('db', 'seeds', 'seeds.yml')
config = HashWithIndifferentAccess.new(YAML::load_file(seed_file))
How i can iterate it and create new Projects and Todos? Please help!

Answer 1

You can do something like this to iterate each of the projects and todos:
Let my_hash be set to that hash you have, then
my_hash[“projects”].each do |project|
# do whatever you need to do with each item in the hash e.g.
puts project[“title”]
# then to get the todos…
project[“todos”].each do |todo|
puts todo[“text”]
end
end

Answer 2

The easiest way to do it is to put your YAML seed files in db/seeds/, then put this in your db/seeds.rb file:
require 'active_record/fixtures'
seeds_dir = File.join(Rails.root, 'db', 'seeds')
seed_files = Dir["#{seeds_dir}/**/*.yml"].map {|f| f[(seeds_dir.size + 1)..-5] }
ActiveRecord::FixtureSet.create_fixtures(seeds_dir, seed_files)
That will load all of your seeds the same way that fixtures are loaded during tests.