value(for:)
Returns the value for the given property.
Declaration
func value(for prop: NSPropertyDescription) -> Any?Parameters
- prop:
A property description for one of the properties in the receiver.
Return Value
The value for the property specified by prop. May return an instance of NSNull for to-one relationships.
Discussion
If a relationship is nil, you should create a new value by invoking newValueForRelationship:forObjectWithID:withContext:error: on the NSPersistentStore object.