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Posted by jmark on 05/21/07 20:29
On May 21, 4:20 am, Toby A Inkster <usenet200...@tobyinkster.co.uk>
wrote:
> Jon Slaughter wrote:
> > If anyone things this thing might be useful then I'm thinking about
> > rewriting everything and make it a little more clean. What it does allow one
> > to do is treat forms as inline objects that are not event driven. The
> > drawback is that the code to handle them must be in a string instead of
> > actual php code that will be parsed, say, by an IDE. Maybe someone knows of
> > a way around this or has some idea to make it better(I know there are going
> > to be the regular nay sayers but who knows).
>
> What you're describing sounds fairly like my form handling code for
> demiblog <http://demiblog.org/etc/forms>. Using my form handling classes
> you can do something like:
>
> $f = new DBF_Field_Text('foobar', 'Default value', 'Label:');
> $f->set_validity_check($blah, TRUE);
>
> $blah is a string which is eval()ed to check the validity of submitted
> data. However, I allow an alternative syntax:
>
> $f = new DBF_Field_Text('foobar', 'Default value', 'Label:');
> $f->set_validity_check($blah, FALSE);
>
> Here, $blah is a variable of type callback (the callback pseudo-type is
> defined here:http://www.php.net/manual/en/language.pseudo-types.php)
> which is passed to call_user_func().
>
> That way, you can write a normal function -- say, validate_email() -- and
> create a form field like:
>
> $f = new DBF_Field_Text('email', '...@example.com', 'E-mail:');
> $f->set_validity_check('validate_email', FALSE);
>
> I also have a few common validity checks built-in, such as checking that a
> field is numeric, checking a field is not left blank, and so on. These are
> checked not only after the form has been submitted, but by a special piece
> of client-side Javascript too.
>
> --
> Toby A Inkster BSc (Hons) ARCShttp://tobyinkster.co.uk/
> Geek of ~ HTML/SQL/Perl/PHP/Python/Apache/Linux
Toby,
What is the main difference between your approach and PEAR
HTML_QuickForm?
http://pear.php.net/package/HTML_QuickForm
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