Template::Latex not interpolating variables . . .

[hesco]

I have a script which parses /etc/log/maillog and builds a hash of bounced email addresses, doing a few database interactions to identify the names and phone numbers of the recipients going without their email.

Today I'm adding Template::Latex to the mix to generate a report which might be useful for tracking down corrections to the bouncing email. But for some reason my variable substitutions are not happening.

My template includes the following:

[% FOREACH recipient IN call_list %]
    \textbf{recipient.email} & box & recipient.uid: recipient.name & r
+ecipient.fname recipient.lname & recipient.phones \\
    \hline
    [% FOREACH sponsor IN call_list.recipient.upstream %]
        \multicolumn{2}{||r|}{sponsor.email} & sponsor.uid: sponsor.na
+me & sponsor.fname sponsor.lname & sponsor.phones \\
    [% END %]
    \hline
[% END %]

The script itself includes:

sub produce_report {
  my $call_list = shift;
  my $vars = { 'call_list' => $call_list };
  print Dumper($vars);
  $tt->process('nightly_bounced_emails_report.tex.tt2',
                $vars,
                'bounced_email_report.pdf',
                binmode => 1) || die $tt->error();

  return;
}

$call_list arrives as a hashref, with the bouncing email addresses used as keys, each containing a data structure for the bounced recipient, plus a key called 'upstream', which includes an arrayref of anonymous hashes for the folks who brought the bounced recipient into the mix.

When the template is processed, it is producing a .tex file including:

    \textbf{recipient.email} & box & recipient.uid: recipient.name & r
+ecipient.fname recipient.lname & recipient.phones \\
    \hline

    \hline

    \textbf{recipient.email} & box & recipient.uid: recipient.name & r
+ecipient.fname recipient.lname & recipient.phones \\
    \hline

    \hline

And it never descends into the data structure to process the internal loop.

Can anyone please advise how I can get my template variables interpolated instead, please?

Any clues appreciated.

-- Hugh Esco

[ahmad]

All template variables should be put between [% %] to get processed

[hesco]

Yes, of course. Thank you ahmad. I no longer get the literals passing through the filter, but my variables still are not being interpolated. Now I am seeing:

    \textbf{} & box & :  &   &  \\
    \hline

    \hline

    \textbf{} & box & :  &   &  \\
    \hline

where my template now reads:

[% FOREACH recipient IN call_list %]
    \textbf{[% recipient.email %]} & box & [% recipient.uid %]: [% rec
+ipient.name %] & [% recipient.fname %] [% recipient.lname %] & [% rec
+ip
ient.phones %] \\
    \hline
    [% FOREACH sponsor IN call_list.recipient.upstream %]
        \multicolumn{2}{||r|}{[% sponsor.email %]} & [% sponsor.uid %]
+: [% sponsor.name %] & [% sponsor.fname %] [% sponsor.lname %] & [% s
+po
nsor.phones %] \\
    [% END %]
    \hline
[% END %]

[ahmad]

If your desired data is not shown, then you might be using the wrong data structure (Your hashref is not what you have expected).

Try using Data::Dumper to print out content of your hashref and see if it's indeed what you want.

If you still have problems with it, post the output of "print Dumper($call_list);" so I can have a look into it.