Matt Glaman: Leveraging the list cache tag for entity types

Recently I wrote about launching my wife's web store for her holiday cookie orders. During the launch, I had a little hiccup. The homepage controller has code to display the available published products. When it came time, I published the products, and... the homepage stayed the same. I was confused. I wrote the code and knew it was collecting cacheable metadata. It should have been updated once changes happened to the products. So, I did what all Drupalists do when things don't work as expected: clear the cache. Then I needed to figure out why this didn't work so that the homepage would be updated once we unpublished the products.

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