[web2py] Download a CSV file for a table

[Hassan Alnatour]

Dear ALL,

I have this code for my CMS  , am trying to make a button that downloads a 
csv file for the table auth_event , i did this :

def UserEvents():
    import cStringIO
    file = cStringIO.StringIO()
    db(db.auth_event.id 
>0).select(orderby=~db.auth_event.id).export_to_csv_file(file)
    return file.getvalue()

But i dont understand why is it opening the csv in the browser and now 
download it  , its a file !!!  any help 


Regards,

--