Chapter 6. Creating, Listing, Displaying, and Deleting Records of Customers

In the previous chapter, we understood the meaning of the code that is automatically generated for us by Core Data in the Application Delegate files. We also developed the application that saves, lists, and deletes customer names. In this chapter, we will enhance the same application to save, list, display, and delete the information of a customer. But before we do so, we will learn to implement the concept of multiple managed object contexts to our application and also how to merge the information in different managed object contexts. We will also learn to apply the knowledge gained so far such as the concept of KVC, its methods used in setting and retrieving attribute values from the managed object, different methods of the NSFetchedResultsControllerDelegate protocol, and so on, to our application.