Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
This seems such a basic problem, I can't imagine there isn't an elegant solution...OTOH, since I haven't encountered it before now, I could be wrong.

I have a CGI form with the same fields for N sets of data, where N isn't hardcoded. For example, imagine a page where you wanted to enter/update multiple sets of data since the data is simple, such as book titles and authors.

We're entering a good amount of data, so we don't want to limit it to one book/author per page/form, but having N sets of info makes it surprisingly painful to feed through Data::FormValidator and HTML::FillInForm.

I have a solution, I'm just not satisfied with it.

I would just have repeated fields within the form, for example:
<input name="title"> <input name="author"> <hr> <input name="title"> <input name="author"> ..etc
but I can't just pass it through Data::FormValidator, because I'm really interested in the data at a sub-form level -- blank fields are acceptable if the entire subform is blank. Likewise, if I pass it through HTML::FillInForm, it will work correctly for filled in values, but will repeat previous values on any "blank" fields.

Here is my disliked solution:

In the code that generates the form, (For me, this is Template, but this holds true for any way of generating the form) I append a counter string to the field names, resulting in something like:

<input name="title01"> <input name="author01"> <hr> <input name="title02"> <input name="author02"> ...etc
Then I have my code cycle through 1..N (or until $q->param() says a given field wasn't passed) and create chunks of "subform" data, that I pass through Data::FormValidator (with a suitably dynamically altered input profile). If I don't like the results, I can just pass it back to HTML::FillInForm and it gives me the desired output.

This solution technically works, but it's cumbersome, makes my HTML templates messy and not designer-friendly, and in general doesn't reflect the elegance I've come to expect from Perl.

So my question is: Which of the different WTDI is cleaner? Thanks in advance.


In reply to repeating fields in CGI forms by swiftone

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!
  • 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
  • Outside of code tags, you may need to use entities for some characters:
            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?
    Username:
    Password:

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

    How do I use this? | Other CB clients
    Other Users?
    Others drinking their drinks and smoking their pipes about the Monastery: (14)
    As of 2014-07-10 13:51 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      When choosing user names for websites, I prefer to use:








      Results (211 votes), past polls