Jared Vititoe a3298e7dbe fix: Enable proper sorting for Created By and Assigned To columns ...

Fixed server-side sorting for user-related columns on dashboard:

Problem:
- Clicking "Created By" or "Assigned To" headers didn't sort
- Columns were missing from $allowedColumns validation
- Fell back to ticket_id sort, appearing random to users

Solution:
1. Added 'created_by' and 'assigned_to' to $allowedColumns array

2. Smart sort expression mapping:
   - created_by → sorts by display_name/username (not user ID)
   - assigned_to → uses CASE to put unassigned at end, then sorts by name
   - Other columns → use table prefix (t.column_name)

3. Database-level NULL handling for assigned_to:
   - Uses CASE WHEN to sort unassigned tickets last
   - Regardless of ASC/DESC direction
   - Then alphabetically sorts assigned users

Result:
- A→Z: Alice, Bob, Charlie... Unassigned
- Z→A: Zack, Yolanda, Xavier... Unassigned
- Consistent grouping and predictable order

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2026-01-09 16:42:13 -05:00

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