56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
from functools import wraps
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from django.contrib import messages
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from django.contrib.admin import helpers
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from django.template.response import TemplateResponse
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from django.utils.decorators import available_attrs
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from django.utils.encoding import force_text
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def action_with_confirmation(action_name, extra_context={},
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template='admin/controller/generic_confirmation.html'):
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"""
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Generic pattern for actions that needs confirmation step
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If custom template is provided the form must contain:
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<input type="hidden" name="post" value="generic_confirmation" />
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"""
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def decorator(func, extra_context=extra_context, template=template):
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@wraps(func, assigned=available_attrs(func))
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def inner(modeladmin, request, queryset):
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# The user has already confirmed the action.
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if request.POST.get('post') == "generic_confirmation":
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stay = func(modeladmin, request, queryset)
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if not stay:
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return
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opts = modeladmin.model._meta
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app_label = opts.app_label
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action_value = func.__name__
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if len(queryset) == 1:
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objects_name = force_text(opts.verbose_name)
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else:
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objects_name = force_text(opts.verbose_name_plural)
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context = {
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"title": "Are you sure?",
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"content_message": "Are you sure you want to %s the selected %s?" %
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(action_name, objects_name),
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"action_name": action_name.capitalize(),
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"action_value": action_value,
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"deletable_objects": queryset,
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'queryset': queryset,
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"opts": opts,
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"app_label": app_label,
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'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
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}
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context.update(extra_context)
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# Display the confirmation page
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return TemplateResponse(request, template,
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context, current_app=modeladmin.admin_site.name)
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return inner
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return decorator
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