On Friday 12 April 2002 8:10 pm, Carl Schmidt wrote: > I have a form where a user enters some numbers into text boxes. Some of > the text boxes can be left blank. The business logic receives all > variables to all text boxes. Should I :
I'm assuming that you are using an executable file and NOT a web form. Any data you get from a web form, you must treat as suspect and perform business logic checks in another tier. > 1.) Validate on the page for the presence of a value, and if not, set the > corresponding value to -1 (it will never be this value). Therefore the > business logic blindly inserts everything. This is reasonable. Alternatively, set the corresponding value to NULL. > 2.) Do not have the variables that correspond to blank text boxes be > set to -1. Have the business logic build a query based on which variables > are or > are not containing a value. In this case some fields for that row may be > null. I'd avoid this if you can. Too much dynamicness and it will be hard to test. sql,query. --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
