Enhance contest file loading logic in app.py to incorporate portfolio data

- Updated the logic to conditionally combine the 'Contest' dataframe with 'portfolio_df' if available, improving data management.
- Ensured that the 'Contest' dataframe is cleaned by dropping empty rows and resetting the index, enhancing data integrity for user interactions.
- This change aligns with previous updates aimed at improving user experience and data accessibility.

app.py

@@ -190,7 +190,14 @@ with tab1:
             
 
     if 'Contest_file' in st.session_state:
-        st.session_state['Contest'], st.session_state['ownership_df'], st.session_state['actual_df'], st.session_state['entry_list'], check_lineups = load_contest_file(st.session_state['Contest_file'], type_var, st.session_state['player_info'], sport_select)
+        if 'portfolio_df' in st.session_state:
+            combined_df = pd.concat([st.session_state['Contest'], st.session_state['portfolio_df']], ignore_index=True)
+            combined_df = combined_df.reset_index(drop=True)
+            st.session_state['Contest'], st.session_state['ownership_df'], st.session_state['actual_df'], st.session_state['entry_list'], check_lineups = load_contest_file(combined_df, type_var, st.session_state['player_info'], sport_select)
+        else:
+            st.session_state['Contest'], st.session_state['ownership_df'], st.session_state['actual_df'], st.session_state['entry_list'], check_lineups = load_contest_file(st.session_state['Contest_file'], type_var, st.session_state['player_info'], sport_select)
+        st.session_state['Contest'] = st.session_state['Contest'].dropna(how='all')
+        st.session_state['Contest'] = st.session_state['Contest'].reset_index(drop=True)
         st.session_state['Contest'] = st.session_state['Contest'].dropna(how='all')
         st.session_state['Contest'] = st.session_state['Contest'].reset_index(drop=True)
         if st.session_state['Contest'] is not None:
@@ -212,10 +219,6 @@ with tab1:
             if 'portfolio_df' in st.session_state:
                 st.write('Portfolio data:')
                 st.dataframe(st.session_state['portfolio_df'].head(25))
-                combined_df = pd.concat([st.session_state['Contest'], st.session_state['portfolio_df']], ignore_index=True)
-                combined_df = combined_df.reset_index(drop=True)
-                st.session_state['entry_list'].append('Backtesting_upload')
-                st.session_state['Contest'] = combined_df
                 st.table(st.session_state['Contest'])
             else:
                 pass