folderadmin.py 文件源码

def resize_images(self, request, files_queryset, folders_queryset):
        opts = self.model._meta
        app_label = opts.app_label

        current_folder = self._get_current_action_folder(request, files_queryset, folders_queryset)
        perms_needed = self._check_resize_perms(request, files_queryset, folders_queryset)
        to_resize = self._list_all_to_resize(request, files_queryset, folders_queryset)

        if request.method == 'POST' and request.POST.get('post'):
            if perms_needed:
                raise PermissionDenied
            form = ResizeImagesForm(request.POST)
            if form.is_valid():
                if form.cleaned_data.get('thumbnail_option'):
                    form.cleaned_data['width'] = form.cleaned_data['thumbnail_option'].width
                    form.cleaned_data['height'] = form.cleaned_data['thumbnail_option'].height
                    form.cleaned_data['crop'] = form.cleaned_data['thumbnail_option'].crop
                    form.cleaned_data['upscale'] = form.cleaned_data['thumbnail_option'].upscale
                if files_queryset.count() + folders_queryset.count():
                    # We count all files here (recursivelly)
                    n = self._resize_images_impl(files_queryset, folders_queryset, form.cleaned_data)
                    self.message_user(request, _("Successfully resized %(count)d images.") % {"count": n, })
                return None
        else:
            form = ResizeImagesForm()

        context = admin_each_context(self.admin_site, request)
        context.update({
            "title": _("Resize images"),
            "instance": current_folder,
            "breadcrumbs_action": _("Resize images"),
            "to_resize": to_resize,
            "resize_form": form,
            "cmsplugin_enabled": 'cmsplugin_filer_image' in django_settings.INSTALLED_APPS,
            "files_queryset": files_queryset,
            "folders_queryset": folders_queryset,
            "perms_lacking": perms_needed,
            "opts": opts,
            "root_path": reverse('admin:index'),
            "app_label": app_label,
            "action_checkbox_name": helpers.ACTION_CHECKBOX_NAME,
        })

        # Display the resize options page
        return render(request, "admin/filer/folder/choose_images_resize_options.html", context)