remove commented code

controllers/excel_upload_controller.py

@@ -1,28 +1,16 @@
-import os
+import config
 import ast
 import re
-from flask_login import login_required
 import openpyxl
-from flask import Blueprint, request, render_template, redirect, url_for, jsonify, current_app
 from flask_login import current_user
+from flask_login import login_required
+from flask import Blueprint, request, render_template, redirect, url_for, jsonify
+
 from model.Log import LogHelper
-import config
 from model.FolderAndFile import FolderAndFile
 
 excel_bp = Blueprint('excel', __name__)
 
-# Default folder in case config not set
-# DEFAULT_UPLOAD_FOLDER = 'uploads'
-
-
-# def get_upload_folder():
-#     """Returns the upload folder from Flask config or default, ensures it exists."""
-#     folder = current_app.config.get('UPLOAD_FOLDER', DEFAULT_UPLOAD_FOLDER)
-#     if not os.path.exists(folder):
-#         os.makedirs(folder)
-#     return folder
-
-
 # ---------------- Upload Excel File ----------------
 @excel_bp.route('/upload_excel_file', methods=['GET', 'POST'])
 @login_required
@@ -30,9 +18,6 @@ def upload():
     if request.method == 'POST':
         file = request.files.get('file')
         if file and file.filename.endswith('.xlsx'):
-            # upload_folder = get_upload_folder()
-            # filepath = os.path.join(upload_folder, file.filename)
-
             filepath =FolderAndFile.get_upload_path(file.filename)
 
             file.save(filepath)
@@ -42,6 +27,9 @@ def upload():
                 f"User {current_user.id} Upload Excel File '{file.filename}'"
             )
             return redirect(url_for('excel.show_table', filename=file.filename))
+    else:
+        return redirect(url_for('upload_excel_file'))
+    
     return render_template('uploadExcelFile.html')
 
 
@@ -51,7 +39,6 @@ def show_table(filename):
         global data
         data = []
 
-        # filepath = os.path.join(get_upload_folder(), filename)
         filepath = FolderAndFile.get_upload_path(filename)
         wb = openpyxl.load_workbook(filepath, data_only=True)
         sheet = wb.active