Penyesuaian JavaScript di adminLink to this heading#

Peristiwa-peristiwa formulir berderetLink to this heading#

You may want to execute some JavaScript when an inline form is added or removed in the admin change form. The formset:added and formset:removed events allow this. event.detail.formsetName is the formset the row belongs to. For the formset:added event, event.target is the newly added row.

Dalam cetakan change_form.html penyesuaian anda, perpanjang blok admin_change_form_document_ready dan tambah kode pendengar kejadian:

{% extends 'admin/change_form.html' %}
{% load static %}

{% block admin_change_form_document_ready %}
{{ block.super }}
<script src="{% static 'app/formset_handlers.js' %}"></script>
{% endblock %}

document.addEventListener('formset:added', (event) => {
    if (event.detail.formsetName == 'author_set') {
        // Do something
    }
});
document.addEventListener('formset:removed', (event) => {
    // Row removed
});

Dua poin untuk diingat:

• Kode JavaScript harus berada di blok cetakan jika anda mewarisi admin/change_form.html atau itu tidak akan dibangun dalam HTML akhir.

• {{ block.super }} ditambahkan karena blok admin_change_form_document_ready Django mengandung kode JavaScript untuk mengangani beragam tindakan dalam formulir rubah dan kami butuh itu dibangun juga.

function handleFormsetAdded(row, formsetName) {
    // Do something
}

$(document).on('formset:added', (event, $row, formsetName) => {
    if (event.detail && event.detail.formsetName) {
        // Django >= 4.1
        handleFormsetAdded(event.target, event.detail.formsetName)
    } else {
        // Django < 4.1, use $row and formsetName
        handleFormsetAdded($row.get(0), formsetName)
    }
})