Blitz does not clear cache on asset file replacements (Craft/Blitz 3)

[hiasl]

Hi,

We are on Craft 3.8.17 with Blitz 3.13.0 and discovered that Blitz does not clear the cached version of an entry when assets used in that entry get file-replaced within “Assets”.

AFAIK there are 3 ways to replace a file / an asset:

• in “Assets”, check the checkbox next to an asset and then choose “Replace file” from the gearwheel menu
• open the details view of an asset (URL: /admin/assets/edit/…) and click on “Replace file” button to the left of the “Save” button
• Drag’n’drop one or more files into your Asset volume with identical filenames to existing assets and then choose “Replace file” on the modal asking you if you want to keep both files or replace existing ones.

Interesting side note: When you update a field value on an asset (e.g. Title, Copyright or Alt Text) and click on “Save”, Blitz does clear the cache.

I have a minimum DDEV installation with the exact setup which I can provide via e-mail.

The problem seems to be solved in Craft 4 or higher versions of Blitz (don’t know which part is actually responsible for the problem), but I would need a solution for Craft 3 as well.

Thanks!

[bencroker]

This feature was added in Blitz 4.5.0.

The cache refresh process is now triggered when an asset’s file is replaced or its filename is changed (https://github.com/putyourlightson/craft-blitz/issues/514).

https://github.com/putyourlightson/craft-blitz/blob/develop/CHANGELOG.md#450---2023-07-19

Backporting this to Blitz 3 was always blocked by features that Craft 3.x added, but I’ve gone ahead and added this in https://github.com/putyourlightson/craft-blitz/commit/80d6c6510be6298960d80656982ce152eed8abe5 for the next release, which will require Craft 3.7.5 or above.

You can test this by running composer require "putyourlightson/craft-blitz:v3.x-dev as 3.14.0".

[hiasl]

Thank you Ben!

• I can confirm this is working in the isolated setup I created to test it (the one I also provided to you).
• For some reason it does not yet work on our project, but this must have other reasons.

[hiasl]

This issue (https://github.com/putyourlightson/craft-blitz/issues/609) is related, in case someone is using Blitz 3.13 and newer together with the Relax plugin (https://plugins.craftcms.com/relax) in v1.

The reason why I only noticed by now is because I was not using Blitz 3.12.10 as stated above, but I was using 3.13.0.

[bencroker]

It's actually an unrelated issue that has to be fixed by the Relax plugin, see https://github.com/putyourlightson/craft-blitz/issues/609.

[bencroker]

Version 3.14.0 was just released.