the problem is that you are using numeric comparison (==) when you need string comparison (eq), so the contents of $q->param('userid') always evaluates to true regardless if it's empty or not. change your code like this: 

 if ($q->param('userid') eq '') {
        $self->_create_user();
    } else {
        $self->_update_user();
    }

[download]

see also the tutorials here on PerlMonks that cover the various ways Perl test for true/false.

also here is how you could debug input parameter passing in your CGI::Application modules: 

sub maintain_user {
    my $self = shift;
    my $q    = $self->query;
    
    use Data::Dumper;
    return Dumper $q;
}

[download]
:)))))

In reply to Re: CGI:Application and HTML::Template parameter passing by arpad.szasz
in thread CGI:Application and HTML::Template parameter passing by emgrasso

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.