Cohort Signup

Cohort Signup adds a Select cohort dropdown to the core self-registration form. The selection is validated and stashed for the current request, and an observer on \core\event\user_created adds the new user to the chosen cohort using the core Cohort API. Every attempt is recorded in a tracking table and surfaced through a small admin report.

The plugin makes no core modifications and uses only the documented signup form callbacks, so it stays compatible across the supported releases.

• Cohort dropdown on the signup page, showing only visible cohorts, sorted A–Z.
• Friendly message (and no broken field) when no cohorts exist.
• Automatic, event-driven assignment after account creation.
• Duplicate-membership and invalid/hidden-cohort protection.
• Configurable: enable/disable, require selection, default cohort, allowed cohorts, show hidden cohorts, and logging.
• Three Moodle events for selection, success and failure.
• Admin tracking report (Site administration ' Plugins ' Local plugins).
• Full Privacy API (export, delete, userlist) support.
• PHPUnit + Behat coverage and a ready-to-run GitHub Actions workflow.

1. Copy the plugin folder to local/cohortsignup in your Moodle root.

   <moodleroot>/local/cohortsignup
   

    
2. Log in as an administrator and visit Site administration ' Notifications, or run:

   php admin/cli/upgrade.php
   

    
3. Confirm the database upgrade to install the local_cohortsignup table.

Self-registration must be enabled (Site administration ' Plugins ' Authentication ' Manage authentication ' Self registration) for the dropdown to appear.

Go to Site administration ' Plugins ' Local plugins ' Cohort Signup:

1. A visitor opens Create new account.
2. They pick a cohort from Select cohort and submit.
3. After the account is created they are added to the cohort automatically.
4. Administrators review outcomes in the Cohort signup report.