how to generate a task in ruby on rails

Nov 21, 2014

ruby on rails 生成task的方法：

$ rails g task task_namespace task_name1 task_name2

$ create lib/tasks/task_namespace.rake

task文件里面：

namespace :task_namespace do
  desc "this is describe"
    task :task_name1 => :environment do
  end

  desc "this is also describe"
    task :task_name2 => :environment do
  end
end

使用 rake -T 查看所有task

rake task_namespace:task_name1    # this is describe

rake task_namespace:task_name2    # this is also describe