+class CoverLicenseFilter(LicenseFilter):
+ title = 'Licencja okładki'
+ parameter_name = 'cover_license'
+ license_url_field = 'document_book__dc_cover_image__license_url'
+ license_name_field = 'document_book__dc_cover_image__license_name'
+
+
+def add_title(base_class, suffix):
+ class TitledCategoryFilter(base_class):
+ def __init__(self, *args, **kwargs):
+ super().__init__(*args, **kwargs)
+ self.title += suffix
+ return TitledCategoryFilter
+
+
+