How to run rake tasks from console?
Running your Rake tasks requires two steps:
- Loading Rake
- Loading your Rake tasks
You are missing the second step.
Normally this is done in the Rakefile, but you have to do it manually here:
require 'rake'
Rails.application.load_tasks # <-- MISSING LINE
Rake::Task['my_task'].invoke
The easiest way to do it is to run %x[command] from the irb. I'm not sure if what you want to achieve though.
%x[rake db:migrate]
EDIT: I highly recommend to use .invoke as Daniel says in the accepted answer.
The easy way is:
Rails.application.load_tasks
Rake::Task['my_task'].invoke