Forms: Optimize has_feedback() query for better performance

[lezama]

Proposed changes:

Optimizes the has_feedback() method in the Forms dashboard to improve performance on sites with large numbers.

Other information:

• Have you written new tests for your changes, if applicable? N/A - optimization only
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

Performance optimization discussed internally.

Does this pull request change what data or activity we track or use?

No

Testing instructions:

Prerequisites:

• Site with Jetpack Forms active
• Ideally, a site with many feedback entries (spam, responses, etc.) for meaningful testing

Steps:

1. Go to Jetpack → Forms in the admin dashboard
2. Open browser DevTools → Network tab
3. Look for the /wp-json/wp/v2/feedback/config request
4. Check the response time

Expected behavior:

• Request should complete quickly (<50ms on most sites)
• Dashboard should load faster
• No functional changes to the UI or data returned

This is part of a larger effort: #45339

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WoA dev site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin (Jetpack), and enable the update/forms-optimize-has-feedback-query branch.
• To test on Simple, run the following command on your sandbox:

bin/jetpack-downloader test jetpack update/forms-optimize-has-feedback-query

Interested in more tips and information?

• In your local development environment, use the jetpack rsync command to sync your changes to a WoA dev blog.
• Read more about our development workflow here: PCYsg-eg0-p2
• Figure out when your changes will be shipped to customers here: PCYsg-eg5-p2

[github-actions]

Thank you for your PR!

When contributing to Jetpack, we have a few suggestions that can help us test and review your patch:

• ✅ Include a description of your PR changes.
  
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• ✅ Specify whether this PR includes any changes to data or privacy.
  
• ✅ Add changelog entries to affected projects
  

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Follow this PR Review Process:

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[jp-launch-control]

Code Coverage Summary

Coverage changed in 1 file.

File	Coverage	Δ%	Δ Uncovered
projects/packages/forms/src/dashboard/class-dashboard.php	23/83 (27.71%)	5.63%	0 💚

Full summary · PHP report · JS report

[Copilot]

Pull Request Overview

This PR optimizes the has_feedback() method in the Forms dashboard to improve performance by modifying the query to only fetch what's necessary to determine if feedback exists.

• Limits query to fetch only 1 post instead of all feedback posts
• Disables unnecessary caching and metadata loading
• Changes return logic to use have_posts() instead of found_posts

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
projects/packages/forms/src/dashboard/class-dashboard.php	Optimizes the feedback existence check query with performance parameters
projects/packages/forms/changelog/update-optimize-has-feedback-query	Adds changelog entry documenting the performance optimization

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[Copilot]

The changelog type should be 'changed' rather than 'fixed' since this is a performance optimization, not a bug fix.

Suggested change

	Type: fixed
	Type: changed

[enejb]

It fixes things for sites with really large DBs.

[lezama]

This is part of a larger effort: #45339