Context:

I have a view that dynamically renders a partial template (tabela_mensal.html) using Django's standard render method without any apparent issues:

PYTHONCopied
return render(request, 'parciais/projeto/extrato/livre-movimento-investimento/tabela-mes/tabela-mensal.html', context)

The tabela_mensal.html template displays a table of bank account statements. For each row, I include a modal template using {% include %}. One of these modals contains a for record editing:

DJANGOCopied
{% for extrato in extrato_investimento %}
    <tr>
        ...
        {% include 'parciais/projeto/extrato/livre-movimento-investimento/modais/modal-edicao.html' %}
    </tr>
{% endfor %}

The modal template (modal-edicao.html) includes a form with several inputs. For instance:

HTMLCopied
<form id="form-edit-linha-extrato-livre-investimento-{{ extrato.pk|slugify }}" method="post" action="{% url 'projeto:editar_linha_extrato_livre_investimento' extrato.pk|slugify %}">
    <input type="hidden" name="csrfmiddlewaretoken" value="{{ csrf_token }}">
    <div>
        <label for="data-{{ extrato.pk|slugify }}">Date</label>
        <input type="date" name="data" id="data-{{ extrato.pk|slugify }}" value="{{ extrato.data|date:"Y-m-d" }}">
    </div>
</form>

However, when rendered, the tag is unexpectedly closed immediately, for example:

HTMLCopied
<div class="modal-body">
    <form id="form-edit-linha-extrato-livre-investimento-4118" method="post" action="/editar_linha_extrato_livre/4118/"></form>
    <input type="hidden" name="csrfmiddlewaretoken" value="...">
    <div>
        <label for="data-4118">Date</label>
        <input type="date" name="data" id="data-4118" value="2024-10-01">
    </div>
</div>

This results in the input fields appearing outside of the form. On a subsequent render, the form attribute is completely missing from the inputs:

HTMLCopied
<div class="modal-body">
    <input type="hidden" name="csrfmiddlewaretoken" value="...">
    <div>
        <label for="data-136">Date</label>
        <input type="date" name="data" id="data-136" value="2024-10-01">
    </div>
</div>

Steps to Reproduce:

1. Create a Django template that uses {% include %} inside a for loop to render modal templates dynamically.
2. Ensure the included modal template contains a tag with associated inputs.
3. Render the parent template dynamically (e.g., via jQuery).

Expected Behavior:

The {% include %} tag should render the form and its child elements as defined in the template without prematurely closing the form.

Actual Behavior:

The tag is closed immediately, causing the input fields to fall outside the form. On later renders, the form attribute in the inputs is removed.

Questions:

• Is this behavior the intended result of using {% include %} with nested tags?
• If so, what is the recommended approach for handling partial templates that include forms in Django?

Environment:

• Django version: 4.2.10
• Python version: 3.11.6
• Operating system: Ubuntu 24.04 LTS

Javascript Example (inside the loop):

JAVASCRIPTCopied
function carregarTabelaMesLivreInvestimento(targetId, month, year) {
    if (!$(targetId).data('loaded')) {
        $('#loading-icon').show();

        var projectId = '{{ extrato.projeto.id }}';
        var url_inicial = "{% url 'projeto:carregar_tabela_mes_livre_investimento' 0 %}";
        const url = url_inicial.replace('0', projectId);
        yearString = String(year).replace(/\s+/g, '');

        $.ajax({
            url: url,
            data: {'mes': month, 'ano': yearString},
            success: function(data) {
                $(targetId).html(data);
                $('#loading-icon').hide();
            },
            error: function (jqXHR, textStatus, errorThrown) {
                console.error('Error loading data:', textStatus, errorThrown);
                $('#loading-icon').hide();
            }
        });
    }
}

$('#btn-edit-linha-extrato-livre-investimento-{{ extrato.pk|slugify }}').on('click', function (event) {
    // Localiza todos os inputs relacionados e cria um formulário dinamicamente
    var $inputs = $(this).closest('.modal-body').find('input, select, textarea');
    var formData = {};

    $inputs.each(function () {
        var name = $(this).attr('name');
        if (name) {
            formData[name] = $(this).val();
        }
    });

    console.log("formData:", formData); // Verificando os dados coletados dos inputs

    // Gerar a URL no JavaScript
    var actionUrlTemplate = "{% url 'projeto:editar_linha_extrato_livre_investimento' 0 %}";
    var actionUrl = actionUrlTemplate.replace('0', '{{ extrato.pk }}');
    console.log("actionUrl:", actionUrl); // Verificando a URL gerada

    // Obter o token CSRF diretamente do meta tag
    var csrfToken = $('meta[name="csrf-token"]').attr('content');
    console.log("csrfToken:", csrfToken); // Verificando o token CSRF

    // Adicionar o token CSRF ao formData
    formData['csrfmiddlewaretoken'] = csrfToken;

    // Identificar a aba ativa e carregar informações dela
    var $activeTab = $('#extrato02-tab-pane .nav-link.active');
    var month = $activeTab.data('month');
    var year = $activeTab.data('year');
    var targetId = $activeTab.data('bs-target');
    console.log("month:", month, "year:", year, "targetId:", targetId);

    // Enviar a requisição AJAX
    $.ajax({
        type: "POST",
        url: actionUrl,
        data: formData,
        success: function (response) {
            console.log("response:", response); // Verificando a resposta do servidor
            if (response.status === 'success') {
                carregarTabelaMesLivreInvestimento(targetId, month, year);
            } else {
                alert('Erro ao salvar: ' + response.errors);
            }
        },
        error: function (xhr, status, error) {
            console.log("xhr:", xhr);
            console.log("status:", status);
            console.log("error:", error);
            alert('Erro ao processar a solicitação: ' + status);
        }
    });
});