Scheduled Cron Jobs with the Whenever Gem Discussion

Hey!

I've used the gem but know I understand it a bit more. Just one question. The flags -l and -c in "...bin/bash..." are crontab flags or bash flags?

Thanks a lot!

Could this be used in some way so that if a user were signed in to an app, and wanted to configure some sort of email notification to go out after a certain time after an event, or similarly set some sort of scheduled date/time to send out an email? I'm guessing having a cron to run every minute which would trigger a script to check for such a schedule or delayed send?

For anyone who wants to use Models in tasks, you should load your environment on your task to load them before using them on the code as in:

task example: :environment do
end

Hey,
I have implement schedule tasks to existing project using rails 4, when i rake tasks on development mode works and database updated, but when i rake tasks on production server it's work but database not updated.
Here is my code

// schedule.rb

every :hour do
  rake "profile_update:inactive"
end

//profile_update.rake

namespace :profile_update do
  desc "Update gps status profiles"
  task inactive: :environment do
    @profile_short = Heartrate.select('Date_Format(TIMEDIFF(now(), MAX(heartrates.start_time)), "%H") selisih_date, profiles.id, MAX(heartrates.start_time) start_time').joins(:profile).where('heartrates.start_time BETWEEN ? AND ?', DateTime.now.end_of_day-1, DateTime.now.end_of_day).where('profiles.gps_status = 1').group(:profile_id).order('profiles.id ASC')
      if @profile_short.present?
      @profile_short.each do |profile|
        if profile.selisih_date.to_i < 1
          cek_safety =  SafetyAlert.select('Date_Format(TIMEDIFF(now(), created_at), "%H") selisih_date_safety').where(profile_id: profile.id).where('created_at BETWEEN ? AND ?', profile.start_time, DateTime.now.end_of_day).last
          if cek_safety.present?
          else
            if profile.selisih_date.to_i >= 1
              Profile.where(id: profile.profile_id).update_all(gps_status: 0)
            end
          end
        else
          cek_safety =  SafetyAlert.select('Date_Format(TIMEDIFF(now(), created_at), "%H") selisih_date_safety').where(profile_id: profile.id).where('created_at BETWEEN ? AND ?', profile.start_time, DateTime.now.end_of_day).last
          if cek_safety.present?
            if cek_safety.selisih_date_safety.to_i >= 1
              Profile.where(id: profile.id).update_all(gps_status: 0)
            end
          else
            Profile.where(id: profile.id).update_all(gps_status: 0)
          end
        end
      end
    end
  end

end