Regenerate cached thumbnails?

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I have a lot of pages (access restricted to certain users) with Grid Gallery 2, containing not only large numbers of images, but also images of large dimensions (2400px width - this is because i want users let them download images in a printable version and also have them displayed nicely on Retina screens).

Full page cache is enabled for all these grid gallery pages.

As a consequence, as soon as the cache is cleared for any reason (add-on updates for instance), all cached thumbnails are also gone. Now, to reduce loading time when pages are first accessed by users after the cache has been cleared, i usually load each gallery page manually in order to get the thumbnails regenerated. That procedure of course takes ages.

I wonder if there would be a more elegant solution to regenerate thumbnails for the cache?

Thankful for any hint,

Type: Discussion
Status: In Progress
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shahroq replied on at Permalink Reply
You can use any of the "Cache Warmer" solutions for concrete5, i suppose there are add-ons for both 5.6 and 5.7 version.
But as a built-in solution, i will think about that, having that feature built-in at the grid gallery would be cool.
Thanx for the suggestion.
okapi replied on at Permalink Reply
Yes, i have bought the Cache Warmer add-on, because i thought it would exactly do that, but unfortunately it does not regenerate any thumbnails.
If this is an built-in functionality, do you think, it should generate thumbnails?
How should it know, which thumbnails are needed for Grid Gallery?
shahroq replied on at Permalink Reply
1- You mean the "cache warmer" add-on doe not generate images? Have you contact author and ask?
2- Currently there is not a built-in feature at Grid Gallery, but i add this to list of our to-do list for upcoming versions.
okapi replied on at Permalink Reply
1) It doesn't create any thumbnails for Grid Gallery. I have not tested it so far with other blocks.
2) That would be very cool!

Thank you,

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