Type Aliases

A String that pertains to the name of an *.xcdatamodeld file (without the file extension).

An Optional<String> that pertains to the name of a “Configuration” which particular groups of entities may belong to. When nil, pertains to the default configuration which includes all entities.

An String that pertains to the name of a versioned *.xcdatamodeld file (without the file extension). Model version strings don’t necessarily have to be numeric or ordered in any way. The migration sequence will always be decided by (or the lack of) the MigrationChain.

An String that pertains to an Entity name.

An String that pertains to a dynamically-accessable class name (usable with NSClassFromString(…)).

An String that pertains to a attribute keyPaths.

The MigrationResult indicates the result of a migration. MigrationResult.success indicates either the migration succeeded, or there were no migrations needed. The associated value is an array of MigrationTypes reflecting the migration steps completed. MigrationResult.failure indicates that the migration failed. The associated object for this value is the a CoreStoreError enum value.

dataStack.upgradeStorageIfNeeded(SQLiteStorage(fileName: "data.sqlite")) { (result) in
    switch result {
    case .success(let migrationSteps):
        // ...
    case .failure(let error):
        // ...
    }
}

The SetupResult indicates the result of an asynchronous initialization of a persistent store. SetupResult.success indicates that the storage setup succeeded. The associated object for this enum value is the related StorageInterface instance. SetupResult.failure indicates that the storage setup failed. The associated object for this value is the related CoreStoreError enum value.

try! dataStack.addStorage(
    SQLiteStore(),
    completion: { (result: SetupResult) -> Void in
        switch result {
        case .success(let storage):
            // storage is the related StorageInterface instance
        case .failure(let error):
            // error is the CoreStoreError enum value for the failure
        }
    }
)