How To

Build two steps action

This example shows how to create a button that display a form to upload a file and process it.

admin_extra_buttons/upload.html

{% extends "admin_extra_buttons/action_page.html" %}
{% load i18n static admin_list admin_urls %}

{% block action-content %}
<form method="post" enctype="multipart/form-data">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Upload</button>
</form>

{% endblock

admin.py

from django import forms
from admin_extra_buttons.api import ExtraButtonsMixin, button
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.contrib import admin
from django.contrib.admin.templatetags.admin_urls import admin_urlname

class UploadForm(forms.Form):
    docfile = forms.FileField(label='Select a file')


class MyModelAdmin(ExtraButtonsMixin, admin.ModelAdmin):

    @button()
    def upload(self, request):
        context = self.get_common_context(request, title='Upload')
        if request.method == 'POST':
            form = UploadForm(request.POST, request.FILES)
            if form.is_valid():
                downloaded_file = request.FILES['docfile']
                # process file
                ...
                ...
                return redirect(admin_urlname(context['opts'], 'changelist'))
        else:
            form = UploadForm()
        context['form'] = form
        return TemplateResponse(request, 'admin_extra_buttons/upload.html', context)