Key word: we have 3 ways to generate a task, the special way is:

Aug 7, 2016

How to generate rake task
ruby * rails * rake Permalink Have you ever written your own rake tasks? If you write them very often this post will be…railsguides.net

$ rails g task my_namespace my_task1 my_task2
$ create lib/tasks/my_namespace.rake

namespace :my_namespace do
  desc "TODO"
  task :my_task1 => :environment do
  end

  desc "TODO"
  task :my_task2 => :environment do
  end
end

$ rake -T | grep my_namespace
rake my_namespace:my_task1  # TODO
rake my_namespace:my_task2  # TODO