Add Ticket Assignment feature (Feature 2)

- Add assigned_to column support in TicketModel with assignTicket() and unassignTicket() methods
- Create assign_ticket.php API endpoint for assignment operations
- Update TicketController to load user list from UserModel
- Add assignment dropdown UI in TicketView
- Add JavaScript handler for assignment changes
- Integrate with audit log for assignment tracking

Users can now assign tickets to team members via dropdown selector.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

api/assign_ticket.php

@@ -0,0 +1,42 @@
+<?php
+session_start();
+require_once '../config/db.php';
+require_once '../models/TicketModel.php';
+require_once '../models/AuditLogModel.php';
+
+header('Content-Type: application/json');
+
+// Check authentication
+if (!isset($_SESSION['user_id'])) {
+    echo json_encode(['success' => false, 'error' => 'Not authenticated']);
+    exit;
+}
+
+// Get request data
+$data = json_decode(file_get_contents('php://input'), true);
+$ticketId = $data['ticket_id'] ?? null;
+$assignedTo = $data['assigned_to'] ?? null;
+
+if (!$ticketId) {
+    echo json_encode(['success' => false, 'error' => 'Ticket ID required']);
+    exit;
+}
+
+$ticketModel = new TicketModel($conn);
+$auditLogModel = new AuditLogModel($conn);
+
+if ($assignedTo === null || $assignedTo === '') {
+    // Unassign ticket
+    $success = $ticketModel->unassignTicket($ticketId, $_SESSION['user_id']);
+    if ($success) {
+        $auditLogModel->log($_SESSION['user_id'], 'unassign', 'ticket', $ticketId);
+    }
+} else {
+    // Assign ticket
+    $success = $ticketModel->assignTicket($ticketId, $assignedTo, $_SESSION['user_id']);
+    if ($success) {
+        $auditLogModel->log($_SESSION['user_id'], 'assign', 'ticket', $ticketId, ['assigned_to' => $assignedTo]);
+    }
+}
+
+echo json_encode(['success' => $success]);

assets/js/ticket.js

@@ -213,7 +213,7 @@ function toggleMarkdownMode() {
 document.addEventListener('DOMContentLoaded', function() {
     // Show description tab by default
     showTab('description');
-    
+
     // Auto-resize the description textarea to fit content
     const descriptionTextarea = document.querySelector('textarea[data-field="description"]');
     if (descriptionTextarea) {
@@ -223,15 +223,50 @@ document.addEventListener('DOMContentLoaded', function() {
             // Set the height to match the scrollHeight
             descriptionTextarea.style.height = descriptionTextarea.scrollHeight + 'px';
         }
-        
+
         // Initial resize
         autoResizeTextarea();
-        
+
         // Resize on input when in edit mode
         descriptionTextarea.addEventListener('input', autoResizeTextarea);
     }
+
+    // Initialize assignment handling
+    handleAssignmentChange();
 });
 
+/**
+ * Handle ticket assignment dropdown changes
+ */
+function handleAssignmentChange() {
+    const assignedToSelect = document.getElementById('assignedToSelect');
+    if (!assignedToSelect) return;
+
+    assignedToSelect.addEventListener('change', function() {
+        const ticketId = window.ticketData.id;
+        const assignedTo = this.value || null;
+
+        fetch('/api/assign_ticket.php', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ ticket_id: ticketId, assigned_to: assignedTo })
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (!data.success) {
+                alert('Error updating assignment');
+                console.error(data.error);
+            } else {
+                console.log('Assignment updated successfully');
+            }
+        })
+        .catch(error => {
+            console.error('Error updating assignment:', error);
+            alert('Error updating assignment: ' + error.message);
+        });
+    });
+}
+
 function showTab(tabName) {
     // Hide all tab contents
     const descriptionTab = document.getElementById('description-tab');

controllers/TicketController.php

@@ -3,17 +3,20 @@
 require_once dirname(__DIR__) . '/models/TicketModel.php';
 require_once dirname(__DIR__) . '/models/CommentModel.php';
 require_once dirname(__DIR__) . '/models/AuditLogModel.php';
+require_once dirname(__DIR__) . '/models/UserModel.php';
 
 class TicketController {
     private $ticketModel;
     private $commentModel;
     private $auditLogModel;
+    private $userModel;
     private $envVars;
     
     public function __construct($conn) {
         $this->ticketModel = new TicketModel($conn);
         $this->commentModel = new CommentModel($conn);
         $this->auditLogModel = new AuditLogModel($conn);
+        $this->userModel = new UserModel($conn);
         
         // Load environment variables for Discord webhook
         $envPath = dirname(__DIR__) . '/.env';
@@ -61,6 +64,9 @@ class TicketController {
         // Get timeline for this ticket
         $timeline = $this->auditLogModel->getTicketTimeline($id);
 
+        // Get all users for assignment dropdown
+        $allUsers = $this->userModel->getAllUsers();
+
         // Load the view
         include dirname(__DIR__) . '/views/TicketView.php';
     }

models/TicketModel.php

@@ -11,10 +11,13 @@ class TicketModel {
                 u_created.username as creator_username,
                 u_created.display_name as creator_display_name,
                 u_updated.username as updater_username,
-                u_updated.display_name as updater_display_name
+                u_updated.display_name as updater_display_name,
+                u_assigned.username as assigned_username,
+                u_assigned.display_name as assigned_display_name
                 FROM tickets t
                 LEFT JOIN users u_created ON t.created_by = u_created.user_id
                 LEFT JOIN users u_updated ON t.updated_by = u_updated.user_id
+                LEFT JOIN users u_assigned ON t.assigned_to = u_assigned.user_id
                 WHERE t.ticket_id = ?";
         $stmt = $this->conn->prepare($sql);
         $stmt->bind_param("i", $id);
@@ -283,4 +286,37 @@ class TicketModel {
             ];
         }
     }
+
+    /**
+     * Assign ticket to a user
+     *
+     * @param int $ticketId Ticket ID
+     * @param int $userId User ID to assign to
+     * @param int $assignedBy User ID performing the assignment
+     * @return bool Success status
+     */
+    public function assignTicket($ticketId, $userId, $assignedBy) {
+        $sql = "UPDATE tickets SET assigned_to = ?, updated_by = ?, updated_at = NOW() WHERE ticket_id = ?";
+        $stmt = $this->conn->prepare($sql);
+        $stmt->bind_param("iii", $userId, $assignedBy, $ticketId);
+        $result = $stmt->execute();
+        $stmt->close();
+        return $result;
+    }
+
+    /**
+     * Unassign ticket (set assigned_to to NULL)
+     *
+     * @param int $ticketId Ticket ID
+     * @param int $updatedBy User ID performing the unassignment
+     * @return bool Success status
+     */
+    public function unassignTicket($ticketId, $updatedBy) {
+        $sql = "UPDATE tickets SET assigned_to = NULL, updated_by = ?, updated_at = NOW() WHERE ticket_id = ?";
+        $stmt = $this->conn->prepare($sql);
+        $stmt->bind_param("ii", $updatedBy, $ticketId);
+        $result = $stmt->execute();
+        $stmt->close();
+        return $result;
+    }
 }

views/TicketView.php

@@ -167,6 +167,18 @@ function formatDetails($details, $actionType) {
                         }
                         ?>
                     </div>
+                    <div class="ticket-assignment" style="margin-top: 0.5rem;">
+                        <label style="font-weight: 500; margin-right: 0.5rem;">Assigned to:</label>
+                        <select id="assignedToSelect" class="assignment-select" style="padding: 0.25rem 0.5rem; border-radius: 4px; border: 1px solid var(--border-color, #ddd);">
+                            <option value="">Unassigned</option>
+                            <?php foreach ($allUsers as $user): ?>
+                                <option value="<?php echo $user['user_id']; ?>"
+                                    <?php echo ($ticket['assigned_to'] == $user['user_id']) ? 'selected' : ''; ?>>
+                                    <?php echo htmlspecialchars($user['display_name'] ?? $user['username']); ?>
+                                </option>
+                            <?php endforeach; ?>
+                        </select>
+                    </div>
                 </div>
                 <div class="header-controls">
                     <div class="status-priority-group">