devicehub-django/admin/templates/reserved.html

{% extends "base.html" %}
{% load i18n %}
{% load django_bootstrap5 %}

{% block content %}
<div class="container mt-5">
    <div class="row mb-4">
        <div class="col">
            <h3 class="text-center">{{ subtitle }}</h3>
        </div>
    </div>

    <form role="form" method="post" novalidate>
        {% csrf_token %}
        <div class="mb-3">

          <h5 class="mt-4">{% translate "Status name" %}</h5>
            {% bootstrap_field form.label_name show_label=False %}
        </div>

        <h5 class="mt-4">{% translate "Possible States" %}</h5>
        <div id="formset">
            {{ formset.management_form }}
            {% for form in formset %}
                <div class="row mb-3 formset-form">
                    <div class="col-md-10">
                        {% bootstrap_field form.label_state show_label=False %}
                    </div>
                    <div class="col-md-2 d-flex align-items-center">
                        {% if forloop.first %}
                            <button type="button" class="btn btn-sm btn-success add-form">
                                &#43;
                            </button>
                        {% endif %}
                        <button type="button" class="btn btn-sm btn-danger remove-form ms-2">
                            &minus;
                        </button>
                    </div>
                </div>
            {% endfor %}
        </div>
          <div class="container">
    <a class="btn btn-grey" href="{% url 'admin:panel' %}">{% translate "Cancel" %}</a>
    <input class="btn btn-green-admin" type="submit" name="submit" value="{% translate 'Save' %}" />
  </div>


    </form>
</div>

<script>
    //TODO: change this to jquery formset plugin
document.addEventListener('DOMContentLoaded', function() {
    var formsetDiv = document.getElementById('formset');
    var totalForms = document.getElementById('id_form-TOTAL_FORMS');

    function updateElementIndex(el, prefix, index) {
        var idRegex = new RegExp('(' + prefix + '-\\d+-)');
        var replacement = prefix + '-' + index + '-';
        if (el.id) el.id = el.id.replace(idRegex, replacement);
        if (el.name) el.name = el.name.replace(idRegex, replacement);
    }

    function addForm(e) {
        e.preventDefault();
        var formCount = parseInt(totalForms.value);
        var newForm = document.querySelector('.formset-form').cloneNode(true);

        newForm.querySelectorAll('input').forEach(function(input) {
            updateElementIndex(input, 'form', formCount);
            input.value = '';
        });

        // Remove any hidden inputs (management form fields)
        newForm.querySelectorAll('input[type="hidden"]').forEach(function(hiddenInput) {
            hiddenInput.remove();
        });

        // Attach event listeners to the new buttons
        var addButton = newForm.querySelector('.add-form');
        var removeButton = newForm.querySelector('.remove-form');

        addButton.addEventListener('click', addForm);
        removeButton.addEventListener('click', removeForm);

        // Ensure only the first form has the add button
        formsetDiv.querySelectorAll('.add-form').forEach(function(button, index) {
            if (index > 0) {
                button.remove();
            }
        });

        formsetDiv.appendChild(newForm);
        totalForms.value = formCount + 1;
    }

    function removeForm(e) {
        e.preventDefault();
        var formToRemove = e.target.closest('.formset-form');
        formToRemove.remove();

        var forms = formsetDiv.querySelectorAll('.formset-form');
        totalForms.value = forms.length;

        // Re-index form elements
        forms.forEach(function(form, index) {
            form.querySelectorAll('input').forEach(function(input) {
                updateElementIndex(input, 'form', index);
            });
        });

        // Ensure only the first form has the add button
        formsetDiv.querySelectorAll('.add-form').forEach(function(button, index) {
            if (index > 0) {
                button.remove();
            }
        });
    }

    // Initial event listeners
    document.querySelectorAll('.add-form').forEach(function(button) {
        button.addEventListener('click', addForm);
    });

    document.querySelectorAll('.remove-form').forEach(function(button) {
        button.addEventListener('click', removeForm);
    });
});
</script>
{% endblock %}