wip

app/models/document.py

@@ -48,10 +48,18 @@ class Category(db.Model):
     def __repr__(self):
         return f'<Category {self.name}>'
     
+    @property
+    def display_name(self):
+        """Return a display name for the category, showing 'Root' for the root category with empty name"""
+        if self.is_root and not self.name:
+            return "Root"
+        return self.name
+    
     def to_dict(self):
         return {
             'id': self.id,
-            'name': self.name,
+            'name': self.name or '',  # Ensure name is never null
+            'display_name': self.display_name,
             'icon': self.icon,
             'description': self.description,
             'parent_id': self.parent_id,