Filter by specialization
When retrieving a list over association it’s needed regurarly to filter the list by a specific specialization.
For example, in below domain model, I would want to retrieve all cars of a specific owner over association.
- Currently I would need to retrieve all, iterate through all vehicles, do an object type decision and add the item of object type car to a list.
- What i would like to do is simply filter the list of vehicles with object type Car. Ideally the output would een be a Car (so including the Cast), but a list of vehilces of type Car would already great.
This is a great idea, sadly not implemented in the last 3 years. Would bring great benefits to many apps.
@Mendix Support, could we get this in the future?
It would be benefitial to even be able to retrieve a list of the generalized entity, but apply filters specilized for the specializations.
Using the original example this would come in handy when filtering for vehicles which can cary a certain freight volume. Cars would ahve a trunk (and/or frunk), but bikes would require an additional entity with compatible cases and trucks would have a list of trailers assigned. Beeing able to filter all vehicles with a single retrieve but applying the filter per specialization would save two additional retrieves and list join actions compared to a current solution.
Thanks Marius, i fixed the image.
Agree, I've been looking for this as well! Especially in a List View I often want to show only a specific specialization.
Note that the included picture doesn't actually have generalizations from Vehicle yet, so that’s a bit confusing