Instance Method

prepareForDeletion

Provides an opportunity to add code into the life cycle of the managed object when it is about to be deleted.

Declaration

- (void)prepareForDeletion;

Discussion

You can implement this method to perform any operations required before the object is deleted, such as custom propagation before relationships are torn down, or reconfiguration of objects using key-value observing.

See Also

Managing Change Events

contextShouldIgnoreUnmodeledPropertyChanges

A Boolean value that indicates whether instances of the class should be marked as having changes if an unmodeled property is changed.

- awakeFromFetch

Provides an opportunity to add code into the life cycle of the managed object when it is being fulfilled from a fault.

- awakeFromInsert

Provides an opportunity to add code into the life cycle of the managed object when it is initially created.

- awakeFromSnapshotEvents:

Provides an opportunity to add code into the life cycle of the managed object when it is being fulfilled from a snapshot.

- changedValues

Returns a dictionary containing the keys and (old) values of persistent properties that have been changed since the last fetching or saving of the managed object.

- changedValuesForCurrentEvent

Returns a dictionary containing the keys and old values of persistent properties that have changed since the last posting of NSManagedObjectContextObjectsDidChangeNotification.

- committedValuesForKeys:

Returns a dictionary of the last fetched or saved values of the managed object for the properties specified by the given keys.

- willSave

Provides an opportunity to add code into the life cycle of the managed object when it is about to be saved.

- didSave

Provides an opportunity to add code into the life cycle of the managed object after the managed object’s context completes a save operation.

- willTurnIntoFault

Provides an opportunity to add code into the life cycle of the managed object before it is converted to a fault.

- didTurnIntoFault

Provides an opportunity to add code into the life cycle of the managed object when it is turned into a fault.

+ fetchRequest

Returns a new fetch request initialized with the entity represented by this subclass.

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