Book Image

Core Data iOS Essentials

By : Bintu Harwani, B. M. Harwani
Book Image

Core Data iOS Essentials

By: Bintu Harwani, B. M. Harwani

Overview of this book

Core Data is the essential ingredient in data driven iOS apps. It's used for storing, retrieving, and manipulating application data in databases, XML, and binary formats. It's an essential component for iPhone, iPod Touch, and iPad apps.Core Data Essentials provides a clear, readable guide to the most useful aspects of Core Data. Built around a realistic example app, the book showcases the most important aspects of Core Data development in the context of a complete, functioning app written in Objective C.The book starts with a tour of how the app works. Then you'll see how to easily display data using the Table View. You'll learn how to develop an appropriate data model that fits the needs of your app, then implement that model as updatable data objects. You'll see how to update data and build relationships between objects and learn how Core Data can work with search, and how to provide your users with friendly data editing features.
Table of Contents (19 chapters)
Core Data iOS Essentials
About the Author
About the Reviewers

Chapter 8. Entering, Saving, Listing, and Deleting the Records of the Products Sold to the Customers

In the previous chapter, we saw how to apply the updation and searching facility to the customer's information. We also saw the usage of NSPredicate in applying the filtering condition to the entity instances. In this chapter, we will be:

  • Adding one more entity with the name Product to our existing Data Model

  • Establishing the relationship from the Customer entity to the Product entity along with the Inverse relationship from the Product entity to the Customer entity

  • Entering, saving, listing, and deleting the information of the products sold to different customers