Run method periodically in manualy created interval in Rails

Question

I have a form when user can set day in week and time period (for example Monday from 02:00 to 03:00). Then I want to run specific method (periodically, for example every 30 seconds) but only during given time interval (it should be performed on background every Monday during 02:00 and 03:00, every 30 seconds). Is it possible to do this when time interval is created dynamically (by user)?

Try this: http://stackoverflow.com/questions/4602418/rails-whenever-gem-dynamic-values — Alok Swain, Apr 15 '16 at 11:21
You can use tools like rufus-scheduler https://github.com/jmettraux/rufus-scheduler — coding addicted, Apr 15 '16 at 11:52

score 1 · Accepted Answer · answered Apr 15 '16 at 18:29

You could define a cron job which runs a rake task (refer to this for syntactic sugar: https://github.com/javan/whenever). Your rake task could run every X seconds and query the database for new jobs.

However, calling a rake task via cron boots the rails app every time, so a more suffisticated approach would be to use sidekiq (http://sidekiq.org/) in combination with sidekiq-scheduler (https://github.com/moove-it/sidekiq-scheduler).

Run method periodically in manualy created interval in Rails

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