RE: Class::DBI::FromCGI and is_changed

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--On Tuesday, October 26, 2004 7:56 PM +0100 Simon Wilcox 
<essuu@xxxxxxxx.xxx> wrote:

> On Tue, 26 Oct 2004, Zhuang Li wrote:
>
>> Assuming $cd->year is already '2002' and then $cd->year('2002') is
>> called. is_changed() will think $cd->year has been changed although with
>> the same value.
>
> Which is arguably wrong as I now need to pre-process all the args and
> compare them against the original values to see if they've really changed
> or not.

While I see the intuitive value of your argument, I'm not sure it's a good 
idea to ask is_changed() to account for 'equivalent' values, both because 
equivalence may be difficult to define in some cases, and because the 
necessary comparisons may (in tricky cases) slow down a basic operation.


--
Regards,
Charles Bailey  < bailey _at_ newman _dot_ upenn _dot_ edu >
Newman Center at the University of Pennsylvania