Rake task to fill the database of a Rails app with fake data

gistfile1.txt

# Run it with rake db:populate
namespace :db do
  desc "Empty the db and fill it with fake data"
  task :populate => :environment do
    require 'faker'
    
    Rake::Task['db:reset'].invoke
    
    def time_rand from = 0.0, to = Time.now
      Time.at(from + rand * (to.to_f - from.to_f))
    end
    
    10.times do
      student = Student.create ({
        :first_name => Faker::Name.first_name,
        :last_name  => Faker::Name.last_name,
        :address    => Faker::Address.street_address,
        :birth      => time_rand,
        :phone      => Faker::PhoneNumber.phone_number})
           
      student.save!
    end    
  end
end