I have:
- Activities, which are divided into Activity Categories, such that each activity belongs to one category; and a category can have multiple activities.
- and Trips, where each trip has a set of multiple Activity Categories.
Upon creating a trip, the user chooses multiple activity categories. I want to get a list of all activities whose category is included in the list of the trip’s categories. How can I do that? When trying to filter activities in such way I can’t do “Current Trip → Categories” contains “Current Activity → Category”.