At the moment it is impossible for elements with a #type to set default cache behaviour because #cache is checked before element_info() is called.

This is obviously for speed, we could check #cache a second time after #pre_render, in the same way that we check #printed a second time.

This would allow elements with #type to define default render cache behaviour.

CommentFileSizeAuthor
#1 2046563-1.patch1.28 KBthedavidmeister

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thedavidmeister’s picture

thedavidmeister commented
Issue tags: +Performance, +theme system cleanup
StatusFileSize
new 2046563-1.patch1.28 KB

patch

jlindsey15’s picture

jlindsey15 commented
Status: Active » Needs review

Just stumbled across this and thought I'd make sure the patch gets tested before everyone forgets about it.

fabianx’s picture

fabianx commented
Status: Needs review » Needs work
Issue tags: +Needs tests

I am not sure this is necessary and how it relates to the more general cache tags support in core, but if this would like to go in, it needs tests.

thedavidmeister’s picture

thedavidmeister commented

mmm, I agree that it probably needs more thought/discussion in general. This is something I thought we could do "just because we can" but I would like to have some use cases and tests for it first.

lauriii’s picture

lauriii
he/him
Primary language Finnish
Location Finland
commented
Component: theme system » render system
Issue summary: View changes

This sounds like render system problem

Version: 8.0.x-dev » 8.1.x-dev

Drupal 8.0.6 was released on April 6 and is the final bugfix release for the Drupal 8.0.x series. Drupal 8.0.x will not receive any further development aside from security fixes. Drupal 8.1.0-rc1 is now available and sites should prepare to update to 8.1.0.

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Version: 8.1.x-dev » 8.2.x-dev

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Version: 8.3.x-dev » 8.4.x-dev

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Version: 8.4.x-dev » 8.5.x-dev

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Version: 8.5.x-dev » 8.6.x-dev

Drupal 8.5.6 was released on August 1, 2018 and is the final bugfix release for the Drupal 8.5.x series. Drupal 8.5.x will not receive any further development aside from security fixes. Sites should prepare to update to 8.6.0 on September 5, 2018. (Drupal 8.6.0-rc1 is available for testing.)

Bug reports should be targeted against the 8.6.x-dev branch from now on, and new development or disruptive changes should be targeted against the 8.7.x-dev branch. For more information see the Drupal 8 minor version schedule and the Allowed changes during the Drupal 8 release cycle.

Version: 8.6.x-dev » 8.8.x-dev

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Version: 8.8.x-dev » 8.9.x-dev

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Version: 8.9.x-dev » 9.2.x-dev

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Version: 9.2.x-dev » 9.3.x-dev

Version: 9.3.x-dev » 9.4.x-dev

Drupal 9.3.15 was released on June 1st, 2022 and is the final full bugfix release for the Drupal 9.3.x series. Drupal 9.3.x will not receive any further development aside from security fixes. Drupal 9 bug reports should be targeted for the 9.4.x-dev branch from now on, and new development or disruptive changes should be targeted for the 9.5.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

Version: 9.4.x-dev » 9.5.x-dev

Drupal 9.4.9 was released on December 7, 2022 and is the final full bugfix release for the Drupal 9.4.x series. Drupal 9.4.x will not receive any further development aside from security fixes. Drupal 9 bug reports should be targeted for the 9.5.x-dev branch from now on, and new development or disruptive changes should be targeted for the 10.1.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

Version: 9.5.x-dev » 11.x-dev

Drupal core is moving towards using a “main” branch. As an interim step, a new 11.x branch has been opened, as Drupal.org infrastructure cannot currently fully support a branch named main. New developments and disruptive changes should now be targeted for the 11.x branch. For more information, see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

smustgrave’s picture

smustgrave commented
Status: Needs work » Postponed (maintainer needs more info)
Issue tags: +stale-issue-cleanup

Thank you for creating this issue to improve Drupal.

We are working to decide if this task is still relevant to a currently supported version of Drupal. There hasn't been any discussion here for over 8 years which suggests that this has either been implemented or is no longer relevant. Your thoughts on this will allow a decision to be made.

Since we need more information to move forward with this issue, the status is now Postponed (maintainer needs more info). If we don't receive additional information to help with the issue, it may be closed after three months.

Thanks!

smustgrave’s picture

smustgrave commented
Status: Postponed (maintainer needs more info) » Closed (outdated)

I believe this one is outdated. The (now) render function has several checks for cache before hand and has gone through numerous changes in the last 12 years. If still valid please re-open.

Now that this issue is closed, please review the contribution record.

As a contributor, attribute any organization that helped you, or if you volunteered your own time.

Maintainers, please credit people who helped resolve this issue.