Grocy: Variations of the same product

[OmgImAlexis]

For example with milk there's chocolate, strawberry, skim, etc.

Even if they're added as separate items it'd be nice to have a way to link them.

[Wdavery]

Potential easy solution would be a product-subgroups.

Allow nesting product groups.
Dairy > Milk (with w.milk, choc.milk, straw.milk)
Ingredients > Sugar (brown, white, icing)

Would allow for much more granular sorting, and wouldn't complicate anything by creating a "master product" that holds multiple actual products.

[etilley]

I'll be working on this issue in my down time

[berrnd]

This is now done like @Wdavery proposed: :)

• Define the parent product for a product on the product edit page (only one level is possible, means a product which is used as a parent product in another product, cannot have a parent product itself)
• Parent and sub products can have stock (both are regular products, no difference from that side)
• On the stock overview page the aggregated amount is displayed next to the amount (sigma sign)
• When a recipe needs a parent product, the need is also fulfilled when enough sub product(s) are in stock
  
  
  
  • API change (no breaking change): ​/stock​/products​/{productId} returns additional fields for the aggregated amount(s): stock_amount_aggregated and stock_amount_opened_aggregated - contains the same for "normal" products, is_aggregated_amount indicates if aggregation has happened
  
  

Demo product is "Chocolate" with the variations "Milk Chocolate" and "Dark Chocolate": https://demo-prerelease.grocy.info

I'm not fully happy with the UI part, but it works - if you have further ideas on this, always welcome... :)