imei_entry.html

<!DOCTYPE html>
{% load static %}
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
          integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">


    <title>IMEI ENTRY</title>
</head>
<body>

<div class="container">
    <div class="jumbotron">
        <div class="card text-center">
            <div class="card-header">
                <form method="POST" action="">
                    {% csrf_token %}
                    <input type="number" placeholder="Enter IMEI" name="imei_value">

                    {% if remaining == 0 %}
                        <button type="button" class="btn btn-primary" disabled>Add</button>
                    {% else %}
                        <button type="submit" class="btn btn-primary" name="add_imei">Add</button>                    {% endif %}

                </form>
            </div>
            <div class="card-body">
                {% if total_value != 0 %}
                    <table class="table table-hover">
                        <thead>
                        <tr>
                            <th scope="col">IMEI</th>
                        </tr>
                        </thead>
                        <tbody>
                        {% for data in table %}
                            <tr>
                                <td>{{ data.imei }}</td>
                            </tr>
                        {% endfor %}
                        </tbody>
                    </table>
                {% else %}
                    <p>No data to show...</p>
                {% endif %}


            </div>
            <div class="card-footer text-muted">
                Entry left: {{ remaining }}
                <br>
                {% if remaining == 0 %}
                    <a class="btn btn-primary" href="submit_imei" role="button">Add to Database</a>
                {% else %}
                    <button type="button" class="btn btn-lg btn-primary" disabled>Add to Database</button>
                {% endif %}
            </div>

        </div>
    </div>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
        integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
        crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
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<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
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        crossorigin="anonymous"></script>
<script>
    if (window.history.replaceState) {
        window.history.replaceState(null, null, window.location.href);
    }
</script>
</body>
</html>