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I need is_in_stock to be exposed as an attribute for which I can set "Use in layered navigation" to "Filterable (with results".

I can't seem to find a way to do this? I can't find an extension which does this? Does anyone have any ideas?

To clarify: I'm using ElasticSearch as my search backend, and ElasticSearch takes over layered navigation by using it's own facets which mirror the attribute settings for Layered Navigation - so that's why I need a stock attribute.

  • Bad (but easy) idea: create attribute, sync it with the stock status. – Fabian Blechschmidt Mar 27 '15 at 10:55
  • Thanks - Would you mind elaborating? Creating a attribute is easy enough but how would I go about 'syncing with the stock status' ? – Mark B Mar 27 '15 at 11:06
  • You have to register a observer on every event which might change the stock status and update your attribute. And be careful this can be a performance killer. – Fabian Blechschmidt Mar 27 '15 at 11:08
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    Thanks to Fabian Blechschmidt, I got an idea. I'm checking stock levels on my import script and assigning an 'in stock' or 'out of stock' value to an attribute which I apply to all products – Mark B Apr 1 '15 at 10:47
  • You are welcome to answer your own questions :-) – Fabian Blechschmidt Apr 1 '15 at 12:38
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You can create a new attribute, name it e.g. is_in_stock and sync it with the stock status.

Depending on the way you import products, you need to hook into:

  • importing products
  • saving products (in backend)
  • buying products
  • returning products/canceling orders/...

Then you can just use the attribute.

Not sure whether this is a good idea, especially because it might cost a lot of performance.

The (better?) alternative is to implement your own layer model and block to do what you want.

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