I need to be able to pass #keypath to a func to filter my CoreData records.
I do smth like this:
func filteredExercises(with propertyKeyPath: #keyPath, filter: Any) {
do {
let filteredExercises = try CoreStore.fetchAll(
From<ExerciseEntity>(),
Where<ExerciseEntity>("%K = %@", #keyPath(ExerciseEntity.muscle.name), filter)
)
} catch {
}
}
But for sure #keyPath is not a type, how to do it correctly? Or Do I need to prepare a filtered string which I will pass to a func like a predicate?
If you want to work with #keyPath, then it's just a String.
(A little safer form of creating a String intended to work with KVC.)
Declare the parameter type as String, where you want to receive #keyPath, and pass it to anywhere #keyPath is accepted.
func filteredExercises(with propertyKeyPath: String, filter: Any) {
do {
let filteredExercises = try CoreStore.fetchAll(
From<ExerciseEntity>(),
Where<ExerciseEntity>("%K = %@", propertyKeyPath, filter)
)
} catch {
}
}
If you need to work with Swift-native KeyPath, that's another issue.