In our current project the user management is fully delegated to Keycloak and renaming user accounts is a planned scenario. Therefore we would like to have a feature equivalent to userinfo_update_email for updating usernames in Drupal if they are changed in Keycloak.
Allow switching feature on/off via configuration.
Extend functionality of Keycloak::retrieveUserInfo().
Implement handling of non-unique usernames.
Add a checkbox in configuration form "Update username in user profile"
None.
Add userinfo_update_username configuration value in keycloak.schema.yml
Needs review
2.2
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Doesn't sound like such a strange idea. However we have to think well on how to handle conflicts if the username is already taken. Tagging it for 2.2.x
I'm still not sure how to deal with duplicate accounts. In my case, it is enough to display a message to the user after login. This ensures that users can still work in the system.