1A/test6.html at main · Induction-vvce/1A · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Weekly Event Attendance</title>
    <style>
        body { font-family: sans-serif; margin: 20px; }
        .container { max-width: 1500px; margin: auto; }
        h2 { text-align: center; }
        table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: 10px; }
        th, td { border: 1px solid #ddd; padding: 5px; text-align: center; }
        th { background-color: #f4f4f4; }
        td:first-child { text-align: left; font-weight: bold; width: 15%; }
        .event-cell { width: 3.5%; }
        .update-btn { display: block; width: 150px; margin: 20px auto; padding: 10px; background-color: #4CAF50; color: white; border: none; cursor: pointer; }
    </style>
</head>
<body>

<div class="container">
    <h2>Weekly Event Attendance Tracker</h2>

    <table>
        <thead>
            <tr>
                <th rowspan="2">Student Name</th>
                <th colspan="3">07-09-2025</th>
                <th colspan="3">08-09-2025</th>
                <th colspan="3">09-09-2025</th>
                <th colspan="3">10-09-2025</th>
                <th colspan="3">11-09-2025</th>
                <th colspan="3">12-09-2025</th>
                <th colspan="3">13-09-2025</th>
                <th rowspan="2">Total Count</th>
            </tr>
            <tr>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
                <th>E1</th><th>E2</th><th>E3</th>
            </tr>
        </thead>
        <tbody id="attendance-body"></tbody>
    </table>

    <button class="update-btn" id="update-btn">Update</button>
</div>

<script>
    const students = [
        "Student A", "Student B", "Student C", "Student D", "Student E",
        "Student F", "Student G", "Student H", "Student I", "Student J",
        "Student K", "Student L", "Student M", "Student N", "Student O",
        "Student P", "Student Q", "Student R", "Student S", "Student T"
    ];

    const dates = [
        "07-09-2025", "08-09-2025", "09-09-2025", "10-09-2025",
        "11-09-2025", "12-09-2025", "13-09-2025"
    ];

    const events = ["E1", "E2", "E3"];
    const attendanceBody = document.getElementById("attendance-body");
    const updateBtn = document.getElementById("update-btn");

    // ✅ Load data from localStorage but ensure names are always present
    function loadData() {
        let storedData = localStorage.getItem("weeklyAttendance");
        let saved = storedData ? JSON.parse(storedData) : [];

        // Build default structure
        const initialData = students.map(name => {
            const student = { name, attendance: {} };
            dates.forEach(date => {
                events.forEach(event => {
                    student.attendance[`${date}_${event}`] = false;
                });
            });
            return student;
        });

        // Merge saved status (if any)
        initialData.forEach(student => {
            const savedStudent = saved.find(s => s.name === student.name);
            if (savedStudent) {
                Object.assign(student.attendance, savedStudent.attendance);
            }
        });

        return initialData;
    }

    function renderTable(data) {
        attendanceBody.innerHTML = "";
        data.forEach((student, studentIndex) => {
            const row = document.createElement("tr");

            // Student Name Cell
            const nameCell = document.createElement("td");
            nameCell.textContent = student.name;
            row.appendChild(nameCell);

            // Event Checkboxes
            dates.forEach(date => {
                events.forEach(event => {
                    const cell = document.createElement("td");
                    cell.className = "event-cell";
                    const checkbox = document.createElement("input");
                    checkbox.type = "checkbox";
                    const eventKey = `${date}_${event}`;
                    checkbox.checked = student.attendance[eventKey];
                    checkbox.dataset.studentIndex = studentIndex;
                    checkbox.dataset.eventKey = eventKey;
                    cell.appendChild(checkbox);
                    row.appendChild(cell);
                });
            });

            // Total Count Cell
            const totalCountCell = document.createElement("td");
            row.appendChild(totalCountCell);

            attendanceBody.appendChild(row);
        });
        updateTotals();
    }

    function updateTotals() {
        document.querySelectorAll("#attendance-body tr").forEach(row => {
            let totalCount = 0;
            const checkboxes = row.querySelectorAll("input[type=checkbox]");
            checkboxes.forEach(checkbox => {
                if (checkbox.checked) {
                    totalCount++;
                }
            });
            row.querySelector("td:last-child").textContent = totalCount;
        });
    }

    function saveData() {
        const newData = [];
        document.querySelectorAll("#attendance-body tr").forEach((row) => {
            const studentName = row.querySelector("td:first-child").textContent;
            const newStudentData = { name: studentName, attendance: {} };

            row.querySelectorAll('input[type="checkbox"]').forEach(checkbox => {
                const eventKey = checkbox.dataset.eventKey;
                newStudentData.attendance[eventKey] = checkbox.checked;
            });

            newData.push(newStudentData);
        });

        localStorage.setItem("weeklyAttendance", JSON.stringify(newData));
        alert("Data has been updated and saved!");
    }

    renderTable(loadData());

    updateBtn.addEventListener("click", saveData);
    attendanceBody.addEventListener("change", (event) => {
        if (event.target.type === "checkbox") {
            updateTotals();
        }
    });
</script>

</body>
</html>