feat: Enabling Multiple Hosts for Robin Robin attendance

[itsalam]

What does this PR do?

• Added "multipleRRHosts" and "RRHostsPerMeeting" for eventType Record

• Added switch + number input under Assignment Tab

• Slightly modified layout in the assignmeng Tab

• Fixes #11953 (GitHub issue number)

• /claim #11953

Visual Demo (For contributors especially)

• Undergoing, had issues effectively hosting this in organization mode, but a demo may work in non-org mode.

Video Demo (if applicable):

• Undergoing, had issues effectively hosting this in organization mode, but a demo may work in non-org mode.

Image Demo (if applicable):

Before: After:

Videos:

• Editing team event: https://www.loom.com/share/ad6fe56025314f2184f9b7189cbaee55?sid=f79ef553-ecb4-4a91-959c-383a507e6a30
• Multiple bookings: https://www.loom.com/share/eff2e2605d9143c59d3f1f31ce3ddb8e?sid=1911d914-0032-497a-97ad-cf71d8d5f648

Mandatory Tasks (DO NOT REMOVE)

• [x] I have self-reviewed the code (A decent size PR without self-review might be rejected).
• [x] I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
• [x] I confirm automated tests are in place that prove my fix is effective or that my feature works.

How should this be tested?

• Are there environment variables that should be set? None particuarily
• What are the minimal test data to have? Access to a team, and the ability to book as a user outside of the team.
• What is expected (happy path) to have (input and output)? RR hosts are evenly assigned, meaning that after a specific amount of rounds, every RR host has an equal amount of attendence.
• Any other important info that could help to test that PR

Checklist

• I haven't read the contributing guide
• My code doesn't follow the style guidelines of this project
• I haven't commented my code, particularly in hard-to-understand areas
• I haven't checked if my changes generate no new warnings

---

Summary by mrge

Added support for assigning multiple Round Robin hosts per meeting, allowing more than one host to be selected and evenly distributed for each booking.

• New Features
  • Added "Enable multiple Round Robin hosts" option and number input in the Assignment tab.
  • Updated backend and tests to support and balance multiple hosts per meeting.

[vercel[bot]]

@itsalam is attempting to deploy a commit to the cal Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions[bot]]

Hey there and thank you for opening this pull request! 👋🏼

We require pull request titles to follow the Conventional Commits specification and it looks like your proposed title needs to be adjusted.

Details:

No release type found in pull request title "feat:Enabling Multiple Hosts for Robin Robin attendence". Add a prefix to indicate what kind of release this pull request corresponds to. For reference, see https://www.conventionalcommits.org/

Available types:
 - feat: A new feature
 - fix: A bug fix
 - docs: Documentation only changes
 - style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
 - refactor: A code change that neither fixes a bug nor adds a feature
 - perf: A code change that improves performance
 - test: Adding missing tests or correcting existing tests
 - build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
 - ci: Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
 - chore: Other changes that don't modify src or test files
 - revert: Reverts a previous commit

[graphite-app[bot]]

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (04/29/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add community label" took an action on this PR • (04/29/25)

1 label was added to this PR based on Keith Williams's automation.

[retrogtx]

type checks failing

[github-actions[bot]]

This PR is being marked as stale due to inactivity.

[itsalam]

@retrogtx, made sure the checks are passsing, would you mind taking a look?

[kart1ka]

@itsalam could you pls fix the merge conflicts?

[CarinaWolli]

We decided not to add this feature to our product and closed the original issue. More details here: https://github.com/calcom/cal.com/issues/11953#issuecomment-2999531072

Thank you for your time and effort on this!