[dancer-users] Trapping parameters from a dynamic list of checkboxes.

[Kadir Beyazlı]

Hi Richard,

On Thu, Aug 27, 2015 at 8:05 PM, Richard Reina <gatorreina at gmail.com> wrote:
> That worked! Thank you very much.
>
> Interestingly though $input_hash->{ $key } appears as a hash ref
> "HASH(0xa1d2344)" which I was not able to dereference with
> %$input_hash->{key}.
[KB] WK's answer is absolutely right. You can not use
%$input_hash->{key}, you must use brackets : %{$input_hash->{key}}.
This doesn't bother me much because all I really need
> to know is that it has value -- that tells me the user checked the box for
> this option.
>
> So, instead of looking at the actual value I was just going to do:
>
>     # get parameter for accomp type keys
>       foreach my $key ( keys %$Accomps ) {
>
>       if ( param( $key ) ) { # paramter has value
>           $input_hash->{ $key } = $Accomps->{ $key };
>
>           # user checked this box. Enter a record into TO_DO table
>
>       }
>       }
>
> Is that okay? Or would such an un-exact way of doing it have a downside?
>
>
> 2015-08-27 11:24 GMT-05:00 Yitzchak Scott-Thoennes <sthoenna at gmail.com>:
>>
>> The symbolic reference there is $key; you are (unintentionally, I'd
>> guess) using print's:
>>
>>     print FILEHANDLE LIST
>>
>> syntax, and it is trying to use $key as the filehandle.
>>
>> Maybe you meant:
>>
>>     print $key, $input_hash->{ $key }, "\n"
>>
>> On Thu, Aug 27, 2015 at 8:42 AM, Richard Reina <gatorreina at gmail.com>
>> wrote:
>> > Hi WK,
>> >
>> > Thanks for the reply. Line 577 is the print statement  print $key
>> > $input_hash->{ $key } . "\n"; In the foreach. I know I shouldn't be
>> > printing
>> > here however, I just want to see what value comes across for for example
>> > $input_hash->{ '13' } before I create a DB record based on that value.So
>> > I
>> > guess I just need help figuring out how to see or get the value out of
>> > $input_hash->{ID NUMBER}.
>> >
>> >
>> >
>> > 2015-08-27 10:07 GMT-05:00 WK <wanradt at gmail.com>:
>> >>
>> >> 2015-08-27 17:28 GMT+03:00 Richard Reina <gatorreina at gmail.com>:
>> >>
>> >> > After figuring out how to accommodate my placeholder in
>> >> > selectall_hashref I
>> >> > did this:
>> >> >
>> >> >  my $Accomps = $dbh->selectall_hashref( $q, 'ID', \%attr, $Sid );
>> >>
>> >> If you need placeholder here, but you don't have need for any
>> >> attributes, you may use `undef` here
>> >>
>> >> my $Accomps = $dbh->selectall_hashref( $q, 'ID', undef, $Sid );
>> >>
>> >> > Then as you suggested I do:
>> >> >
>> >> >  # get parameter for accomp type keys
>> >> >       foreach my $key ( keys %$Accomps ) {
>> >> >       print "Checking: " . $key . " for value.\n";
>> >> >       if ( param( $key ) ) {
>> >> >           $input_hash->{ $key } = $Accomps->{ $key };
>> >> >           print $key $input_hash->{ $key } . "\n";
>> >> >       }
>> >> >       }
>> >> >
>> >> > (just printing temporarily to see if it trapped the values)
>> >>
>> >> Here we actually don't need values of $Accomps-hashref, we just using
>> >> it as list to check out form values, so depending of your futher
>> >> needs, you may assign your specific value here, like, for example:
>> >>
>> >>            $input_hash->{ $key } = 1;
>> >>
>> >> > However, I get this error:
>> >> >
>> >> >  Route exception: Can't use string ("1") as a symbol ref while
>> >> > "strict
>> >> > refs"
>> >> > in use at /home/richard/Dancer2/MyApp/bin/../lib/MyApp.pm line 557.
>> >> >
>> >> > Any idea what I am doing wrong?
>> >>
>> >> What is on line 577 of your MyApp.pm?
>> >>
>> >> Wbr,
>> >> --
>> >> Kõike hääd,
>> >>
>> >> Gunnar
>> >> _______________________________________________
>> >> dancer-users mailing list
>> >> dancer-users at dancer.pm
>> >> http://lists.preshweb.co.uk/mailman/listinfo/dancer-users
>> >
>> >
>> >
>> > _______________________________________________
>> > dancer-users mailing list
>> > dancer-users at dancer.pm
>> > http://lists.preshweb.co.uk/mailman/listinfo/dancer-users
>> >
>> _______________________________________________
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>> dancer-users at dancer.pm
>> http://lists.preshweb.co.uk/mailman/listinfo/dancer-users
>
>
>
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>



-- 
Kadir Beyazlı
Computer Engineer
GSM : +90 535 821 50 00