From 59a19a1a7015922b698c59bd7c799e43abbf366f Mon Sep 17 00:00:00 2001
From: Andrej730 <azhilenkov@gmail.com>
Date: Fri, 24 May 2024 18:53:22 +0500
Subject: [PATCH] disable adding cost schedule columns with an empty name

example - https://i.imgur.com/5lGdI2X.png
---
 src/blenderbim/blenderbim/bim/module/cost/operator.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/blenderbim/blenderbim/bim/module/cost/operator.py b/src/blenderbim/blenderbim/bim/module/cost/operator.py
index 70ee62f399..df1e52523d 100644
--- a/src/blenderbim/blenderbim/bim/module/cost/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/cost/operator.py
@@ -533,6 +533,13 @@ class AddCostColumn(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
     name: bpy.props.StringProperty()
 
+    @classmethod
+    def poll(cls, context):
+        if not context.scene.BIMCostProperties.cost_column:
+            cls.poll_message_set("Cost column name is empty")
+            return False
+        return True
+
     def execute(self, context):
         core.add_cost_column(tool.Cost, self.name)
         return {"FINISHED"}