JIT
understanding the purpose of the chart in your dashboard code
what does the chart suppose to show? <?php session_start(); date_default_timezone_set('Asia/Manila'); global $wpdb; // Using your exact table structure $tickets_table = 'tickets'; $users_table = 'users'; $departments_table = 'departments'; // Initialize default stats to prevent null errors $default_stats = [ 'total_tickets' => 0, 'avg_resolution_time' => null, 'min_resolution_time' => null, 'max_resolution_time' => null, 'solved_count' => 0, 'open_count' => 0, 'assigned_count' => 0, 'pending_count' => 0, 'closed_count' => 0 ]; // Fetch and calculate statistics based on your schema $stats_query = $wpdb->get_row(" SELECT COUNT(*) as total_tickets, AVG(TIMESTAMPDIFF(MINUTE, created_at, updated_at)) as avg_resolution_time, MIN(TIMESTAMPDIFF(MINUTE, created_at, updated_at)) as min_resolution_time, MAX(TIMESTAMPDIFF(MINUTE, created_at, updated_at)) as max_resolution_time, SUM(CASE WHEN status = 'solved' THEN 1 ELSE 0 END) as solved_count, SUM(CASE WHEN status = 'open' THEN 1 ELSE 0 END) as open_count, SUM(CASE WHEN status = 'assigned' THEN 1 ELSE 0 END) as assigned_count, SUM(CASE WHEN status = 'pending' THEN 1 ELSE 0 END) as pending_count, SUM(CASE WHEN status = 'closed' THEN 1 ELSE 0 END) as closed_count FROM $tickets_table ", ARRAY_A); // Merge with defaults to ensure all keys exist $stats = array_merge($default_stats, (array)$stats_query); // Convert minutes to hours for display function minutesToHours($minutes) { if ($minutes === null || $minutes === 0) return 'N/A'; $hours = floor($minutes / 60); $mins = $minutes % 60; return sprintf("%dh %02dm", $hours, $mins); } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Dashboard - RJL DeskTrack</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css"> <style> body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; padding: 0; background-color: #f4f7f9; color: #333; } .dashboard-container { display: flex; } .sidebar { width: 240px; background-color: #c1d8f0; color: #000; height: 100vh; position: fixed; left: 0; top: 0; overflow-y: auto; box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1); z-index: 1000; } .sidebar-header { padding: 20px; text-align: center; } .sidebar-header .inventory-name { font-size: 24px; font-weight: bold; color: #000; } .sidebar-menu { padding: 0; } .sidebar-menu ul { list-style: none; margin: 0; padding: 0; } .sidebar-menu li a { display: flex; align-items: center; padding: 12px 20px; text-decoration: none; color: #000; transition: 0.3s; font-size: 16px; } .sidebar-menu li a i { margin-right: 12px; width: 20px; text-align: center; } .sidebar-menu li a:hover, .sidebar-menu li a.active { background-color: #ffffff; color: #000; } .header { position: fixed; top: 0; left: 240px; right: 0; display: flex; justify-content: space-between; align-items: center; background-color: #4663ac; padding: 10px 30px; height: 60px; z-index: 999; box-shadow: 0 2px 5px rgba(0,0,0,0.1); } .header-left { display: flex; align-items: center; } .header-left .date-time { font-size: 15px; color: #fff; font-weight: 500; } .header-right { display: flex; align-items: center; font-size: 16px; color: #ffffff; } .user-dropdown { position: relative; display: inline-block; cursor: pointer; } .user-dropdown-content { display: none; position: absolute; right: 0; background-color: #D1B48C; min-width: 100px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1; border-radius: 4px; } .user-dropdown-header { padding: 8px 12px; background-color: #D1B48C; border-bottom: 1px solid #e9ecef; display: flex; align-items: center; gap: 8px; } .user-dropdown-header i { font-size: 20px; color: #000000; } .user-dropdown-content.user-info { display: flex; align-items: right; gap: 1px; color: #000000; } .user-dropdown-content a { display: flex; padding: 8px 15px; align-items: center; color: #000000; text-decoration: none; font-size: 16px; transition: all 0.2s; } .user-dropdown-content a i { font-size: 16px; margin-right: 8px; } .user-dropdown-content a:hover { text-decoration: underline; color: #000000; } .user-dropdown:hover .user-dropdown-content { display: block; } .header-right i { color: #ffffff; font-size:40px; } .header-right span { font-size: 15px; color: #ffffff; } .main-content { margin-left: 240px; padding: 80px 20px 20px 20px; flex-grow: 1; } /* Strict 2x2 Grid Layout */ .dashboard-grid { display: grid; grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, auto); gap: 20px; width: 100%; max-width: 800px; margin: 0 auto; } .dashboard-box { background-color: #fff; padding: 20px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06); border: 1px solid #e9ecef; display: flex; align-items: center; gap: 15px; transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out; } .dashboard-box:hover { transform: translateY(-3px); box-shadow: 0 6px 15px rgba(0, 0, 0, 0.09); } .dashboard-box i.icon { font-size: 24px; color: #fff; border-radius: 50%; padding: 12px; width: 50px; height: 50px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; } .dashboard-box:nth-child(1) i.icon { background-color: #17a2b8; } .dashboard-box:nth-child(2) i.icon { background-color: #28a745; } .dashboard-box:nth-child(3) i.icon { background-color: #ffc107; } .dashboard-box:nth-child(4) i.icon { background-color: #dc3545; } .dashboard-box .detail { text-align: left; overflow: hidden; } .dashboard-box .count { font-size: 24px; font-weight: 600; color: #343a40; line-height: 1.1; margin-bottom: 5px; } .dashboard-box .label { font-size: 14px; color: #6c757d; } /* Report Styles */ .report-container { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 30px; } .stat-card { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); } .stat-card h3 { margin-top: 0; color: #555; font-size: 16px; } .stat-value { font-size: 28px; font-weight: bold; margin: 10px 0; color: #333; } .stat-description { color: #777; font-size: 14px; } .chart-container { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); margin-bottom: 30px; } .chart-container canvas { width: 100% !important; height: 400px !important; } /* Responsive Adjustments */ @media (max-width: 768px) { .dashboard-grid, .report-container { grid-template-columns: 1fr; max-width: 400px; } } </style> </head> <body> <div class="dashboard-container"> <aside class="sidebar"> <div class="sidebar-header"> <div class="inventory-name">RJL DeskTrack</div> </div> <div class="sidebar-menu"> <ul> <?php if ($_SESSION['role'] !== 'user'): ?> <li><a href="http://localhost/helpdesk/?page_id=57"><i class="fas fa-tachometer-alt"></i> Dashboard</a></li> <li><a href="http://localhost/helpdesk/?page_id=62"><i class="fas fa-users-cog"></i> Users</a></li> <li><a href="http://localhost/helpdesk/?page_id=66"><i class="fas fa-building"></i> Departments</a></li> <?php endif; ?> <li><a href="http://localhost/helpdesk/?page_id=70"><i class="fas fa-ticket-alt"></i> Tickets</a></li> <li><a href="http://localhost/helpdesk/?page_id=74"><i class="fas fa-envelope"></i> Messages</a></li> <?php if ($_SESSION['role'] !== 'user'): ?> <li><a href="http://localhost/helpdesk/?page_id=78"><i class="fas fa-chart-bar"></i> Reports</a></li> <?php endif; ?> </ul> </div> </aside> <main class="main-content"> <header class="header"> <div class="header-left"> <span class="date-time" id="current-date-time"></span> </div> <div class="header-right"> <div class="user-dropdown"> <div class="user-info"> <span id="current-username-header"> <?= htmlspecialchars($_SESSION['username']) ?> <i class="fas fa-user-circle"></i> </span> </div> <div class="user-dropdown-content"> <div class="user-dropdown-header"> <i class="fas fa-user-circle" style="color:#000000;"></i> <span style="color:#000000;"><?= htmlspecialchars($_SESSION['username']) ?></span> </div> <a href="#" onclick="return confirm('Are you sure you want to log out?');"> <i class="fas fa-sign-out-alt" style="font-size: 16px; color:#000000;"></i>Logout </a> </div> </div> </div> </header> <h1>Performance Reports</h1> <div class="report-container"> <div class="stat-card"> <h3>Total Tickets</h3> <div class="stat-value"><?= (int)$stats['total_tickets'] ?></div> <div class="stat-description">All tickets in the system</div> </div> <div class="stat-card"> <h3>Solved Tickets</h3> <div class="stat-value"><?= (int)$stats['solved_count'] ?></div> <div class="stat-description">Successfully solved tickets</div> </div> <div class="stat-card"> <h3>Open Tickets</h3> <div class="stat-value"><?= (int)$stats['open_count'] ?></div> <div class="stat-description">Tickets awaiting resolution</div> </div> <div class="stat-card"> <h3>Avg. Resolution Time</h3> <div class="stat-value"><?= minutesToHours($stats['avg_resolution_time']) ?></div> <div class="stat-description">Average time to resolve tickets</div> </div> </div> <!-- Charts Container - Only show if we have data --> <?php if ($stats['total_tickets'] > 0): ?> <div class="chart-container"> <canvas id="resolutionTimeChart"></canvas> </div> <div class="chart-container"> <canvas id="ticketsByStatusChart"></canvas> </div> <?php endif; ?> <script src="https://cdn.jsdelivr.net/npm/chart.js"></script> <script> document.addEventListener('DOMContentLoaded', function() { // Debug - check if chart containers exist console.log('Chart containers:', { resolution: document.getElementById('resolutionTimeChart'), status: document.getElementById('ticketsByStatusChart') }); <?php if ($stats['total_tickets'] > 0): ?> // Resolution Time Chart - with more checks const resolutionCtx = document.getElementById('resolutionTimeChart'); if (resolutionCtx) { console.log('Creating resolution time chart'); try { new Chart(resolutionCtx, { type: 'bar', data: { labels: ['Minimum', 'Average', 'Maximum'], datasets: [{ label: 'Resolution Time (hours)', data: [ <?= $stats['min_resolution_time'] ?? 0 ?>, <?= $stats['avg_resolution_time'] ?? 0 ?>, <?= $stats['max_resolution_time'] ?? 0 ?> ].map(min => min ? (min/60).toFixed(1) : 0), backgroundColor: [ 'rgba(75, 192, 192, 0.6)', 'rgba(54, 162, 235, 0.6)', 'rgba(255, 99, 132, 0.6)' ] }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Hours' } } } } }); } catch (e) { console.error('Chart error:', e); } } // Status Chart const statusCtx = document.getElementById('ticketsByStatusChart'); if (statusCtx) { console.log('Creating status chart'); try { new Chart(statusCtx, { type: 'doughnut', data: { labels: ['Solved', 'Open', 'Assigned', 'Pending', 'Closed'], datasets: [{ data: [ <?= $stats['solved_count'] ?? 0 ?>, <?= $stats['open_count'] ?? 0 ?>, <?= $stats['assigned_count'] ?? 0 ?>, <?= $stats['pending_count'] ?? 0 ?>, <?= $stats['closed_count'] ?? 0 ?> ], backgroundColor: [ 'rgba(40, 167, 69, 0.6)', 'rgba(255, 193, 7, 0.6)', 'rgba(13, 110, 253, 0.6)', 'rgba(255, 152, 0, 0.6)', 'rgba(108, 117, 125, 0.6)' ] }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'right', } } } }); } catch (e) { console.error('Status chart error:', e); } } <?php endif; ?> }); </script> </body> </html>

Based on the code, this dashboard is designed to show two main charts:

  1. Resolution Time Chart (bar chart):

    • Shows the minimum, average, and maximum ticket resolution times in hours
    • Uses different colors for each metric (green for min, blue for avg, red for max)
    • The y-axis shows hours, making it easy to compare resolution times
  2. Tickets by Status Chart (doughnut chart):

    • Shows the distribution of tickets by their current status
    • Displays counts for: Solved, Open, Assigned, Pending, and Closed tickets
    • Uses color coding (green for solved, yellow for open, etc.) to differentiate statuses

The charts are part of a larger helpdesk/ticketing system dashboard that also displays key metrics in cards above the charts (total tickets, solved tickets, open tickets, and average resolution time).

The charts will only be displayed if there are tickets in the system (checked via $stats['total_tickets'] > 0). The data comes from querying a tickets table that tracks creation/update timestamps and status changes._

currently it doesnt show any charts, the chart can be online just make sure that there is a chart
Preview not available