php bin/magento catalog:images:resize does not process hidden images.

[gwharton]

Preconditions (*)

1. Magento 2.4-develop

Steps to reproduce (*)

1. Create a Product
2. Assign Image 1 to product and set to be visible on product page
3. Assign Image 2 to product and set to be hidden on product page
4. Save the product

Expected result (*)

1. View the product page, only Image 1 should be visible
2. pub/media/catalog/cache folder should contain resized Image 1's
3. pub/media/catalog/cache folder should contain resized Image 2's
4. Clear image cache
5. Run php bin/magento catalog:images:resize
6. pub/media/catalog/cache folder should contain resized Image 1's
7. pub/media/catalog/cache folder should contain resized Image 2's

Actual result (*)

1. Only Image 1 is visible on product page ✅
2. Image 1 is present in cache in resized states ✅
3. Image 2 is present in cache in resized states ✅
4. Cache is cleared ✅
5. Image resize command processes 1 image, not 2 ❌
6. pub/media/catalog/cache folder should contain resized Image 1's ✅
7. pub/media/catalog/cache folder does not contain resized Image 2's ❌

Images that are hidden from the product page are not processed by the image resize command. They should be. Just because they are hidden from the product page, doesn't mean they won't be used elsewhere.

Magento is written so that hiding the product image, actually sets it to disabled.

IMHO setting a product image to disabled, and setting it to be hidden on product page are two very different settings, but magento currently treats them as the same.

The confusion stems from the hidden setting being stored in the database as the field disabled. A hidden image is NOT a disabled image, and should still be processed, just not displayed on the product page, otherwise, what is the point of the hidden setting?

Additional Information

#28239 (comment)

[m2-assistant]

Hi @gwharton. Thank you for your report.
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[hemendraajmera]

I have also mentioned this issue as #28182

[gwharton]

Note, this behaviour was introduced in commit 048a2ee

[m2-assistant]

Hi @engcom-Delta. Thank you for working on this issue.
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[gwharton]

Looks like the change was made on purpose as an optimisation.

[engcom-Delta]

HI @gwharton could you provide case where we can reuse same hidden image? Image uploaded for product cannot be used by media gallery and same image uploaded for another product has new name in database (name + increment index)

[gwharton]

@engcom-Delta I have a separate custom written module that uploads product data to Google Shopping and Google My Business. I need to use different product images for Google feeds than on my front end, so when I create a product I upload two images, one for front end, and one hidden one for Google. My module then picks up this hidden image url and uses that on the google feeds.

The setting in Magento is named "Hide from Product Page", so seems like the perfect setting for me. And infact, it is the way that Magento works when you initially upload an image for a product. Setting it to hidden on the catalog page, DOES generate the cached images for it, regardless of its hidden state. The cached images only dissapear when you clear image cache and then regenerate using catalog:images:resize. There is an inconsistency there.

If this isn't going to be fixed for catalog:images:resize, then Magento should be changed so that it does not generate cached images for new hidden images when they are uploaded to make it consistent, i.e cached images are not generated for hidden images, and the setting should also be changed on the frontend to "Disabled" instead of "Hidden from product page" to reflect the actual setting that is applied.

[gwharton]

In my module I call

$this->imageBuilder->setProduct($product)
                    ->setImageId('product_page_main_image_gmb')
                    ->setAttributes([])
                    ->create()
                    ->getImageUrl();

where product_page_main_image_gmb is a custom image type I have defined in my view.xml.

The url returned by this call returns a 404, when the image is "Hidden from product page" as the cached images were not processed by catalog:images:resize after an images cache clear.