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Re: [ic] Question about Autoload
Quoting Doug Alcorn (lathi@seapine.com):
>
> What's defined when the Autoload stuff is done? I want to do some
> Autoloading on the userdb. Has the record been read in from the
> database when the autoload is executed? How can I easily access the
> various fields? Do I have to use the [data userdb ...] tag? Wouldn't
> that cause some sort of recursion? I want to do something like this.
No, you don't want to use the [data ...] tag unless you think you
have done something to $Values. The session is already retrieved
at Autoload time.
>
> Userdb ....
>
> Autload <<EOR
> [if data userdb pricefield]
> [perl] $Config->{PriceField} = $Values->{pricefield} [/perl]
> [/if]
> EOR
This won't be good code, as you will find out. Better would
be:
Autoload <<EOR
[perl]
return unless $Values->{pricefield};
$Config->{PriceField} = $Values->{pricefield};
return;
[/perl]
EOR
>
> I got the perl snippet from
> http://lists.akopia.com/pipermail/interchange-users/2001-February/004944.html.
> But what I don't know is how the $Values reference gets updated? Does
> it hold the values of the currently read-in record with keys to all
> the fields?
It holds whatever it held from the last page. When a user logs in,
the database is read and $Values and $Scratch are updated. This is persistent.
By the way, if you think people might fiddle with the pricefield value
(remember, a user can set a $Values simply by accessing a URL) then
it would be good to define pricefield as a Scratch setting and
not for Values.
--
Red Hat, Inc., 3005 Nichols Rd., Hamilton, OH 45013
phone +1.513.523.7621 <mheins@redhat.com>
Experience is what allows you to recognize a mistake the second
time you make it. -- unknown
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