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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

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)