JS edit to add 'This is a past event' message to all past events

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I found some fabulous code on a blog (sorry, I can't find it to reference!) which allowed me to add these 'This a past event' messages on any events which have already passed.

However, the Java script which takes note of the date is using the date the event started, instead of the date the event finished. For example - this event runs Nov 27th - March 31st - I want the message to kick in on April 1st, but it's been showing since Nov 27th.

This is the code I'm using:

<!-- PAST EVENTS MESSAGE -->
<script>
  // Change past events styling//
  if ( document.body.classList.contains('collection-type-events-stacked') && document.body.classList.contains('view-item') ) {
 
    // Get the date of the event from the datetime attribute of the event-date element
    var eventDate = document.getElementsByClassName("event-date")[0].getAttribute("datetime");
    // Get today's date
    var expDate = new Date();
    // Convert the dates to numbers, for simplicity
    var eventDateParsed = Date.parse(eventDate);
    var expDateParsed = Date.parse(expDate);
    // Add one day (in milliseconds) to today's date
    // This ensures that the class isn't added until the event has ended
    expDateParsed = expDateParsed + (24*60*60*1000);
    // Finally, calculate whether the date is in the past or present/future and apply the appropriate class to the body
    if ( eventDateParsed < expDateParsed ) {
        document.body.classList.add("pastEvent");
    } else {
        document.body.classList.add("futureEvent");
    }
  }
</script>

Fabulous! Thank you so much! 

Hi, I was just curious where you inserted the JS code. Is it into the Code Inject section in the Event List Settings -> Advanced -> Page Header Code Injection ? It seems like a really useful bit of code but I put it in, but it didn't seemed to work.

On 3/23/2022 at 6:05 AM, dzak said:

Hi, I was just curious where you inserted the JS code. Is it into the Code Inject section in the Event List Settings -> Advanced -> Page Header Code Injection ? It seems like a really useful bit of code but I put it in, but it didn't seemed to work.

Settings > Advanced > Code Injection > Footer