[ic] passing category id to next page - 3-level category tree

["Lukasz Z" <dugi@prion.pl>]

HI THERE!

Continuing the problems with 3-level categorty tree. I built a database with
such a strucrture:

"id"     "name"        "parent_id"

1        skiing                 0                            |----skiing
2        skis                    1                            |
|-------skis
3        boots                 1                            |            |
|-----racing
4        googles              1                            |            |
|-----slalom
5        racing                 2                            |            |
|-----kids
6        slalom                 2                           |            |
7        kids                    2                            |
|-------boots
8        snowdoarding     0                            |
|-------googles
9        boards                8                            |
10      boots                  8
|-----snowboarding
11      softboots            10                          |
|-------boards
12      hardboots           10                          |
|-------boots
                                                                  |
|                |----softboots
                                                                  |
|                |----hardboots


Ok, now, on the main page of the catalog I would like to display a list of
categories with parent_id=0 (skiing, snowbaoarding in this example). Cat
names should be links to "next page" - content, dynamicly built page for
selected "main" category.

                                                        Main PAge:

                                                Choose the category:

                                                    skiing
                                                    snowboarding
                                                    mountain biking
                                                    etc.

 Could you give me an ide idea of the [loop] code with appropriate search
params to do that (I think I could figure it out, just didn't get down to
the code, busy with planning so far).

But my main problem is - how to pass a chosen category "id" to the next
page - main page for the category (dynamicly generated - skeleton like
flypage) which content should be built totaly based on the selected category
"id". At best i would like to have the chosen cat_id stored in session for
further referal.

                                                    "Next page" _ Skiing

    skis
        racing
        slalom                            This page would appear after
choosing skiing in main page
        kids
    googles
    boots

                                                    "Next page" -
Snowboarding

    boards
    boots                       This page would appear after choosing
snowboarding in main page
        softoots
        hardboots

Code examples would be graetly appreciated, as I am a newbie to Interchange,
learning it hard.

Regards,
Lukasz Z


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