octopus/myproject/customers/templates/customers/customer_export_modal.html

<!-- Modal for Customer Export Configuration -->
<div class="modal fade" id="exportModal" tabindex="-1" aria-labelledby="exportModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <form method="post" action="{% url 'customers:customer-export' %}?{{ request.GET.urlencode }}" id="exportForm">
                {% csrf_token %}

                <div class="modal-header">
                    <h5 class="modal-title" id="exportModalLabel">
                        <i class="bi bi-download"></i> Настройка экспорта клиентов
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Закрыть"></button>
                </div>

                <div class="modal-body">
                    <!-- Export info -->
                    <div class="alert alert-info">
                        <i class="bi bi-info-circle"></i>
                        Будет экспортировано клиентов: <strong>{{ total_customers }}</strong>
                        {% if query or filter.form.has_notes.value or filter.form.no_phone.value or filter.form.no_email.value or filter.form.has_contact_channel.value %}
                            <br><small>С учётом текущих фильтров и поиска</small>
                        {% endif %}
                    </div>

                    <!-- Field Selection -->
                    <div class="mb-4">
                        <h6>Выберите поля для экспорта:</h6>
                        <div class="row">
                            {% for field in export_form %}
                                {% if field.name != 'export_format' %}
                                    <div class="col-md-6 mb-2">
                                        <div class="form-check">
                                            {{ field }}
                                            <label class="form-check-label" for="{{ field.id_for_label }}">
                                                {{ field.label }}
                                                {% if 'wallet_balance' in field.name %}
                                                    <span class="badge bg-warning text-dark">Только для владельца</span>
                                                {% endif %}
                                            </label>
                                        </div>
                                    </div>
                                {% endif %}
                            {% endfor %}
                        </div>
                    </div>

                    <!-- Format Selection -->
                    <div class="mb-3">
                        <h6>Формат файла:</h6>
                        {% for choice in export_form.export_format %}
                            <div class="form-check form-check-inline">
                                {{ choice.tag }}
                                <label class="form-check-label" for="{{ choice.id_for_label }}">
                                    {{ choice.choice_label }}
                                </label>
                            </div>
                        {% endfor %}
                    </div>

                    <div class="text-muted small">
                        <i class="bi bi-lightbulb"></i>
                        Ваш выбор будет сохранён для следующего экспорта
                    </div>
                </div>

                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                        Отмена
                    </button>
                    <button type="submit" class="btn btn-primary">
                        <i class="bi bi-download"></i> Экспортировать
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<script>
document.addEventListener('DOMContentLoaded', function() {
    // Pre-select saved preferences from session
    var preferencesJson = '{{ export_preferences|escapejs }}';
    if (preferencesJson && preferencesJson !== '{}') {
        try {
            var preferences = JSON.parse(preferencesJson.replace(/'/g, '"'));

            // Restore selected fields
            if (preferences.selected_fields) {
                preferences.selected_fields.forEach(function(field) {
                    var checkbox = document.getElementById('id_field_' + field);
                    if (checkbox) checkbox.checked = true;
                });
            }

            // Restore format selection
            if (preferences.format) {
                var radio = document.querySelector('input[name="export_format"][value="' + preferences.format + '"]');
                if (radio) radio.checked = true;
            }
        } catch (e) {
            console.log('Could not parse export preferences:', e);
        }
    }
});
</script>