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Is caching my problem? Views not refreshing for logged out users

By: JK Tor | Asked: 08/02/2024
Forums › Category: General questions › Is caching my problem? Views not refreshing for logged out users
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JK Tor asked 5 months ago
I am using a view as a way to generate a header that has a different random picture. It's a simple view that shows a single field (an uploaded picture in this case) with a random sort. When I'm logged in, this header shows a different picture on each page load. When I'm not logged in, the view stays stuck on a single picture even though the view has technically changed. I suspect that when I'm not logged in, I am pulling a cached version and therefore the picture never changes. This is not a huge deal in this particular situation. I just wonder if caching is the issue and if the behaviour would be the same for a different view that had more important information that changed frequently. As always, thanks for your help and I really appreciate this resource!!
1 Answers
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Victor Font answered 5 months ago
You're using a view as a header image? That's innovative. Is the "Limit form visibility" option checked on the Form Permissions settings screen?
JK Tor replied 5 months ago

Hi Victor, thanks for the response! Yeah, I didn’t want to pay for another random image plugin lol. The other good thing is that I can keep some text that I display with the image as another field too. I don’t have the “Limit Form Visibility” checked for the image upload form. I don’t think there is a View Permission option on the view, is this correct?

Victor Font replied 5 months ago

I'm not aware of any permissions that would prevent a view from displaying. Do you have any view filters activated?

JK Tor replied 5 months ago

Hi Victor, no filters on the view.

I was able to do more testing this evening. I'm using Cloudways that uses Varnish (outside WordPress) and the Breeze plugin by default.

When I disable both, the header images randomly rotate. However, if either (or both) are enabled, only one image is cached and displayed. The Varnish cache lifetime is set to 4 hours, so a new image would be pulled after this time.

Cloudways doesn't recommend turning off caching so I'll have to decide how important this is. I will also have a table on the front page (another view) that will list recent uploads and reviews submitted to the site. This form view will also only refresh every four hours for non-logged in users.

The decision for me is balancing the performance impact of not caching versus showing stale data to non-logged in users. The site really caters to users that are logged in, so I may just have to accept that the info on the front page will lag up to four hours.

Thanks for your help.

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