1,956 bytes added
, 10 January
In the Open Food Facts ecosystem, we call '''''obsolete''''' a product that is no longer sold.
== In real life ==
Obsolete products can be hard to identify. Some products are not sold anymore in a supermarket or a region, but that does not mean they are no more elsewhere.
The main source for the obsolete products should the producers themselves: they know when they stopped to produce them. BUT, some products can be used or sold a long time after they have been sold:
* food products with a long shelf life, sometimes years or even dozens of years (!)
* non-food products that can be used for a long time; eg. a car
== In Open Food Facts ==
It is important to know the obsolete products:
* we should exclude them from some stats
* we should exclude them from normal search (while making possible to specifically search for them or with them)
* we could completely block their modification if data are complete and verified
* etc.
=== How to tag? ===
Obsolete products can be tagged by moderators at the beginning of the "edit" page. We don't let any user to do this because it can be hard to be sure.
=== How to find? ===
Each obsolete product is still visible on Open Food Facts ([https://world.openfoodfacts.org/product/3254566478163 example]). A message tells the user it is obsolete.
Obsolete products are still exported as CSV data.
When using the API, obsolete products are identified by fields beginning by "obsolete":
* <code>obsolete</code>: should only contain "on"
* <code>obsolete_imported</code>:
* <code>obsolete_since_date</code>: the withdrawal date: the date when the product have been removed from the market
* <code>obsolete_since_date_imported</code>:
=== Bug and feature request ===
In our bug tracking and feature request system, we have a category [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue%20obsolete%20label%3A%22%F0%9F%97%84%20Obsolete%20products%22 dedicated to obsolete products].