![]() If you live in Rail, MO and you want to call a friend at LJY, you can try calling them between 7:00 AM and 11:00 PM your time. Remember to checkĭaylight savings for any time changes if you are scheduling a call. Since Rail, Missouri and Floyd W Jones Lebanon are in the same time zone, you can call someone during your normal hours and it will be the Schedule a phone call from Rail, MO to LJY That will end up being between 9:00 AM and 5:00 PM in LJY. Meeting at the best time for both parties, you should try between 9:00 AM and 5:00 PM your time in Rail, MO. Is an interesting read if you’re interested in exploring further.Meeting planner for Rail, Missouri and Floyd W Jones Lebanon Recurrence rules section in iCalendar specification (RFC 5545) Recurring events article on Plataformatec blogĪs Swanand points out in the comments, the.On modeling recurring events using temporal expressions. If you’re looking a more complex example, take a look at Such as “second Saturday of every month”,Īnd this article doesn’t cover such advanced scenarios. There are other scenarios in which you might need recurring events, That isn’t needed in a simple example like this one.įor instance, I needed a model for each event occurenceīecause I need to add additional information there,īut here you could just use a field in the RecurringEvent model. There are places where I’ve retained code Make sure that you update the next Event occurence.Īs I mentioned at the start of the article, original_exception = ActiveRecord :: RecordNotFound end #. We need to always retry unless the exception is ActiveRecord::RecordNotFound.Ĭlass RunEventJob < ApplicationJob rescue_from ActiveJob :: DeserializationError do | exception | exception. This exception could also be caused by other factors, You might see the ActiveJob::DeserializationError in the RunEventJob. When you allow users to delete a RecurringEvent,.Wrapping upĪ couple of gotchas you might need to consider There are many more things to consider, though,Īnd I will list some gotchas below. With that, we now have a working weekly recurring events system. # app/controllers/recurring_events_controller.rb class RecurringEvent. This is where things get a little interesting. The next thing to do is to implement the RecurringEventsController#create action. Let’s start off by creating the RecurringEvent model: # rails generate model RecurringEvent \ # reminder:string time:string day:integer user:belongs_to # app/models/recurring_event.rb class RecurringEvent (sending the reminder email, in this example),Īnd also create the next instance of the event. This ActiveJob class will execute the action that should happen at the time We will also use ActiveJob to schedule the event at the correct time ![]() We will save the next instance of the recurring event in the Event model. We will use an Event model to save the actual time at which day - day of the week, as an integer (0 for Sunday, 1 for Monday, etc).time - we will just save a string containing the time, (eg.The user will create a recurring event using a form We will just have a reminder string field in the RecurringEvent model. I prefer having a RecurringEvent model and associate that with other models. We could also call this model something like Reminder,īut since we could have other things in future that could be recurring, Which will contain the day and time at which the event must be performed. We will start with a RecurringEvent model, Let’s briefly think about how we will implement this. Modeling recurring eventsīefore we start writing the code for scheduling events, (“remind me to send status report at 5pm every Friday”),Īnd the system should send an email at that time every week. The system will perform an action every week on that day and time.įor example, a user could set up a reminder Our users want to be able to save weekly events, Let’s take an example where we will need to model weekly recurring events: I have pointed out some cases where this is true. However, some of the tradeoffs that I needed in my project Much of the code here is taken from a real project I’m working on,Īnd I’ve tried to simplify the code as much as possible. I will skip over some of the details (such as views),Īnd you will have to fill in the blanks in such places. In which you might need to model recurring events,Ī simple example of weekly recurring events in a Rails app.Īlthough this post covers most of the code needed for the example, Modeling recurring events in a calendar is an interesting problem to solve.
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