Přidán TreeNode.get_admin_url()

seminar/models.py

@@ -14,6 +14,7 @@ from django.utils.text import slugify
 from django.urls import reverse
 from django.core.cache import cache
 from django.core.exceptions import ObjectDoesNotExist
+from django.contrib.contenttypes.models import ContentType
 from django.utils.text import get_valid_filename
 from imagekit.models import ImageSpecField, ProcessedImageField
 from imagekit.processors import ResizeToFit, Transpose
@@ -1303,6 +1304,10 @@ class TreeNode(PolymorphicModel):
 	def aktualizuj_nazev(self):
 		raise NotImplementedError("Pokus o aktualizaci názvu obecného TreeNode místo konkrétní instance")
 
+	def get_admin_url(self):
+		content_type = ContentType.objects.get_for_model(self.__class__)
+		return reverse("admin:%s_%s_change" % (content_type.app_label, content_type.model), args=(self.id,))
+
 class RocnikNode(TreeNode):
 	class Meta:
 		db_table = 'seminar_nodes_rocnik'