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I'm trying to understand how to set up a one-to-many relationship in Xcode 4.3.1. Usually there was a Utilities pane with a "Plural" option, but I can't find it anymore. Does anyone know if this option was move somewhere else?
Thank you :)
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Inverse relationships enable Core Data to propagate change in both directions when an instance of either the source or destination type changes. Every relationship must have an inverse. When creating relationships in the Graph editor, you add inverse relationships between entities in a single step.
To implement a Transformable attribute, configure it by setting its type to Transformable and specifying the transformer and custom class name in Data Model Inspector, then register a transformer with code before an app loads its Core Data stack.
When you declare a property as Transformable Core Data converts your custom data type into binary Data when it is saved to the persistent store and converts it back to your custom data type when fetched from the store. It does this through a value transformer.
Overview. Core Data provides a set of classes that collaboratively support your app's model layer: An instance of NSManagedObjectModel describes your app's types, including their properties and relationships. An instance of NSManagedObjectContext tracks changes to instances of your app's types.
Guess that's what you are looking for:
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