i mean that callback function is called when i hit the default/user login screen btw, your explaination about login_onfail is clear enough, but when compare to the 2nd example, i've bit confused : assuming the login_onfail is the callback function and not executed when it's hit login screen (not login yet), so why _before_insert function is executed, when i call the controller (e.g. SQLFORM.grid(db.person) )? just call the controller, not add the record yet. yes, the lazy_tables = True in models/db.py
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