Remove category tree

nummi/main/models.py

@@ -7,35 +7,21 @@ from django.core.validators import validate_unicode_slug, FileExtensionValidator
 
 class Category(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
-    name = models.CharField(max_length=64, validators=[validate_unicode_slug], default="New Category")
-    full_name = models.CharField(max_length=512, editable=False, default="")
-    parent = models.ForeignKey("self", on_delete=models.SET_NULL, blank=True, null=True)
+    name = models.CharField(
+        max_length=64, validators=[validate_unicode_slug], default="New Category"
+    )
 
     def __str__(self):
-        if self.parent is None or self.parent == self:
-            return self.name
-        return f"{self.parent}>{self.name}"
-
-    def save(self, *args, **kwargs):
-        self.full_name = str(self)
-        super().save(*args, **kwargs)
-        for child in self.__class__.objects.filter(parent=self):
-            child.save()
-
-    @property
-    def tree(self):
-        if self.parent is None or self.parent == self:
-            return [self.name]
-        return self.parent.tree + [self.name]
+        return self.name
 
     class Meta:
-        ordering = ["full_name"]
+        ordering = ["name"]
 
 
 class CategoryForm(ModelForm):
     class Meta:
         model = Category
-        fields = ["name", "parent"]
+        fields = ["name"]
 
 
 class Transaction(models.Model):