Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

I like Data::FormValidator, but I was never happy with the syntax and never used it extensively. Class::CGI basically treats form data as a collection of objects which can be fetched. Further, the various objects which different forms contain can be mixed and matched at will, with ease. Because a lot of the validation stuff is encapsulated in the handler classes responsible for a given object, the programmer's main code is focused on the business concerns.

In short, the code can be as simple as this:

use Class::CGI handlers => { customer => 'Class::CGI::Customer', date => 'My::Date::Handler', }; my $cgi = Class::CGI->new; eval { my $cust = $cgi->param('customer'); my $date = $cgi->param('date'); }; handle_possible_error($@); my $name = $cust->name; # look ma, objects! my $year = $date->year;

There's a bunch of work which gets abstracted away instead of cluttering the code in a large data structure with odd parameters the end user has to figure out.

That's not to say anything is wrong with the Data::FormValidator approach. It's a difference in approach. With DFV, the validation is centralized in the code doing the validating and it validates all of the data. In the Class::CGI approach, each handler is responsible for validating its own data.

Those are just from my rough impressions of DFV, though. If you can show me how clean the top-level code can be, I'd love to see it.


New address of my CGI Course.

In reply to Re^2: RFC: Class::CGI by Ovid
in thread RFC: Class::CGI by Ovid

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others exploiting the Monastery: (7)
    As of 2018-08-15 16:30 GMT
    Find Nodes?
      Voting Booth?
      Asked to put a square peg in a round hole, I would:

      Results (161 votes). Check out past polls.