How to call a rake task inside controller?

Question

How do I call a rake task in an controller?

I need it to a delayed job.

Answer 1

Rake::Task['task_name'].invoke(args)

But, I'd recommend against this; it's bad practice. It's better to either use Cron if you need that type of functionality, or you can use delayed_job with a custom job object specific to your needs. I'd personally recommend the latter as it causes less pain when moving servers. But delayed_job is not built to run rake tasks, it's meant to queue work items that you create.