Techniques for Sequence of Pages

Howdy,

I searched the Knop archive for help, but came up empty with "step", "next" and "sequence".

I would like to have a sequence of forms that progress through ordered steps, sort of like a survey.  The steps must be performed in order.  A user may resume where they left off.  Each step has some validation logic.  How would I implement this using Knop?

Handling the failure is no problem: just reload the form.  But for the success, I'm trying to figure out the best way to load the next Knop form in the sequence.

First, I assume that the application logic should go into the action file, correct?

If so, then here is some sample code I pulled from the Knop demo files.

_action/act_advanced_edit.inc
-----------------------------

    if($f -> isvalid); // edited for brevity
        // add record
        // update session variable
        // uhh.... magic?  use an include or redirect_url?
    /if;

    if: (!($f -> isvalid) || $f -> error_code)
        && ($f -> getbutton == 'add' || $f -> getbutton == 'save');
        // remain on the same path to show form again
        $nav -> (setlocation: ($nav -> actionpath));
        // show error message
        $message -> (insert: ($f -> error_msg) + ' ' + ($f -> error_code));
    /if;

If I understand that correctly, then the value of the -formaction parameter in the knop form object in the config file determines what is the next page in the sequence:

_config/cfg_advanced_edit.inc
-----------------------------
    var: 'f'=(knop_form:
            -formaction=($nav -> (url: 'advanced')), // action attribute for the html form
            -method='post',
            -database=$d,
            -actionpath='advanced/edit',    // framework action path

Is -formaction the "magic" that tells Knop what to load next?

--steve

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Steve Piercy               Web Site Builder               Soquel, CA
<web@...>                  <http://www.StevePiercy.com/>

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