delete messages using ajax

[simonLeary42]

demo: new random message is generated each refresh and persists across refreshes until the user clicks the X

Screen.Recording.2025-12-11.at.3.21.16.PM.mov

demo 2: error message on POST

Screen.Recording.2025-12-11.at.3.23.24.PM.mov

[Copilot]

Pull request overview

This PR implements AJAX-based deletion of user messages, allowing messages to persist across page refreshes until explicitly dismissed by clicking the X button. The implementation adds a new AJAX endpoint and supporting methods to the UnityHTTPD library.

Key Changes:

• Added AJAX endpoint for deleting individual messages based on level, title, and body pattern matching
• Implemented getMessage() and deleteMessage() methods in UnityHTTPD for message management
• Modified message display template to call the AJAX endpoint instead of immediately hiding messages
• Removed automatic message clearing and replaced test helper function with direct getMessage() calls

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
webroot/panel/ajax/delete_message.php	New AJAX endpoint that handles POST requests to delete messages from session storage
resources/lib/UnityHTTPD.php	Added getMessage(), deleteMessage(), and getMessageIndex() methods; refactored getPostData() with more explicit validation
resources/templates/header.php	Modified message display to include AJAX call for deletion and removed automatic clearMessages() call
resources/lib/exceptions/UnityHTTPDMessageNotFoundException.php	New exception class for when a message matching the criteria is not found
resources/autoload.php	Added require statement for new exception class
test/phpunit-bootstrap.php	Added require for new exception and removed assertMessageExists() helper function
test/functional/PIMemberRequestTest.php	Replaced assertMessageExists() call with getMessage()

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