Rails 如何运行 rake 任务

如何在终端/控制台中运行这个 rake 文件？

我的统计资料

desc "Importer statistikker"
namespace :reklamer do
task :iqmedier => :environment do
...
end
task :euroads => :environment do
...
end
task :mikkelsen => :environment do
...
end
task :orville => :environment do
...
end
end
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Have you tried rake reklamer:iqmedier ?

My custom rake tasks are in the lib directory, not in lib/tasks. Not sure if that matters.

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最佳答案

You can run Rake tasks from your shell by running:

rake task_name

To run from from Ruby (e.g., in the Rails console or another Rake task):

Rake::Task['task_name'].invoke

To run multiple tasks in the same namespace with a single task, create the following new task in your namespace:

task :runall => [:iqmedier, :euroads, :mikkelsen, :orville] do
# This will run after all those tasks have run
end
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Rake::Task['reklamer:orville'].invoke

or

Rake::Task['reklamer:orville'].invoke(args)
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In rails 4.2 the above methods didn't work.

  1. Go to the Terminal.
  2. Change the directory to the location where your rake file is present.
  3. run rake task_name.
  4. In the above case, run rake iqmedier - will run only iqmedir task.
  5. run rake euroads - will run only the euroads task.

  6. To Run all the tasks in that file assign the following inside the same file and run rake all

    task :all => [:iqmedier, :euroads, :mikkelsen, :orville ] do #This will print all the tasks o/p on the screen
end
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Sometimes Your rake tasks doesn't get loaded in console, In that case you can try the following commands

require "rake"
YourApp::Application.load_tasks
Rake::Task["Namespace:task"].invoke
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If you aren't sure how to run a rake task, first find out first what tasks you have and it will also list the commands to run the tasks.

Run rake --tasks on the terminal.

It will list the tasks like the following:

rake gobble:dev:prime
rake gobble:dev:reset_number_of_kits
rake gobble:dev:scrub_prod_data

You can then run your task with: rake gobble:dev:prime as listed.

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As the https://stackoverflow.com/a/5641807/7262646 and https://stackoverflow.com/a/49400110/7262646 described

you have to add

require 'rake'
Rake::Task.clear
YourAppName::Application.load_tasks

on the top of the file.

YourAppName comes from config/applicaion.rb, which is defined as a namespace, such as:

module YourAppName
class Application < Rails::Application
end
end

and then you can use

Rake::Task["task_name"].invoke

to invoke your task.


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