Fixed a couple of bugs

dialogos/authorization.py

@@ -21,7 +21,7 @@ def load_path_attr(path):
 
 
 def default_can_delete(user, comment):
-    if user.is_superuser():
+    if user.is_superuser:
         return True
     return user == comment.author
 

dialogos/forms.py

@@ -18,7 +18,7 @@ def __init__(self, *args, **kwargs):
         self.obj = kwargs.pop("obj")
         self.user = kwargs.pop("user")
         super(CommentForm, self).__init__(*args, **kwargs)
-        if self.user is not None:
+        if self.user is not None and not self.user.is_anonymous():
             del self.fields["name"]
             del self.fields["email"]
             del self.fields["website"]
@@ -28,7 +28,7 @@ def save(self, commit=True):
         comment.ip_address = self.request.META.get("REMOTE_ADDR", None)
         comment.content_type = ContentType.objects.get_for_model(self.obj)
         comment.object_id = self.obj.pk
-        if self.user is not None:
+        if self.user is not None and not self.user.is_anonymous():
             comment.author = self.user
         if commit:
             comment.save()