A Rake task file that populates example data for development in Ruby on Rails

dev.rake

# lib/tasks/dev.rake
if Rails.env.development?
  namespace :dev do
    desc 'Drop, create, load schema, migrate, seed, and populate sample data'
    task prepare: ['db:drop', 'db:create', 'db:schema:load',
                   'db:migrate', 'db:seed', :populate_sample_data] do
      puts 'Ready to go!'
    end

    desc 'Populates the database with sample data'
    task populate_sample_data: :environment do
      user = User.new email: 'test@example.com', password: 'password'
      user.skip_confirmation!
      user.save!
      
      # Add more sample data
    end
  end
end