added try except in dataprepnodjango

error on dev and production in async task execution

rowers/dataprepnodjango.py

@@ -1236,7 +1236,12 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
             engine = create_engine(database_url, echo=False)
 
         with engine.connect() as conn, conn.begin():
-            data.to_sql('strokedata',engine,if_exists='append',index=False)
+            try:
+                data.to_sql('strokedata',engine,if_exists='append',index=False)
+            except OperationalError:
+                data.drop(columns=['rhythm'],inplace=True)
+                data.to_sql('strokedata',engine,if_exists='append',index=False)
+                
         conn.close()
         engine.dispose()    
     return data