No images in Product Listing per Category

I read this thread http://zen-cart.com/forum/showthread.php?t=41209 that says there is no way to do this via the Admin, but I really need to be able to not display thumbnails in the Product Listing for a category or 2. The ability to use ZC for this project depends on it. I have PHP experience and have no problem hacking the Product Listing page to do this but I need a point in the right direction.

I'm assuming the mods would need to be done in /modules/product_listing.php? I see 'PRODUCT_LIST_IMAGE' a few times in there but can't quite figure out what the script is doing exactly...

I'm hoping I can get away with a simple:

if ($category_id != 5) {
do display thumbnail column
}

Does that make sense? If I need to explain further, please let me know.

I think you have the right general idea. The listing display is built fundamentally either using or not using an image, and will want to display the number of elements set in the db. You may be able to fool it by using your test to skip the code inside the PRODUCT_LIST_IMAGE cases for heading and list item, though that might give a blank space or leave the code looking for another element to display.

I think the best method would be to find & snip out or reset the part of the db-derived array/variable that calls for image display, if the category meets your test. Unfortunately, I don't know the mechanics of that well enough to help and don't have time to look more now.

Good luck!

One thing to be aware of is that the image should not show when a Product is in a given categories_id ...

What happens when doing a search? And the Product is in 2 Categories ... should the master_categories_id be used in this case as you cannot know the Category on a search or manufactuer filter etc.

gjh42:

I think the best method would be to find & snip out or reset the part of the db-derived array/variable that calls for image display

That actually sounds ideal. Any idea where this code might be located? I could prob just modify the SQL query and get the job done.

Well, so far this is working:

product_listing.php:
if ($listing->fields['master_categories_id'] == 7) {
array_shift($column_list);
}

default_filter.php (line 68) add to the SQL query:
, p.master_categories_id

Anybody see any potential issues with this?

By default, the master_categories_id is not part of the product_listing ...