onBeforeInsert
This event occurs after form validation (onValidate and onValidateSuccess), when clicking the Insert button, and before executing the SQL command to add the record to the database.
Example: We check the user privileges table before inserting the record, if he does not have privilege, we should send an error message.
sc_lookup(priv_ins," select priv_ins from tb_privileges where login = [var_login] ");
if({priv_ins [0][0]} != 'YES'){
sc_error_message(" you do not have privileges to perform this operation ");
}