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


In this chapter, we saw how a Product Entity is added to our existing Data Model. We saw different types of relationships and learned to establish relationship in both forward as well as backward directions between the Customer and the Product entities. We also saw the usage of Inverse relationship. We also saw different options of Delete Rules and how do they effect another managed object when one managed object is deleted. We also developed Data Model (classes) associated with both the entities. We also saw the role of the special methods that are auto generated for the relationship that we established from the Customer to the Product entity.

In this chapter, we also learnt how to enter and maintain the information of the product(s) sold to the selected customer. The task being a bit large, it was divided into three modules. We first developed a module that created a View to enter the information of the product(s) that is sold to the selected customer. Then, to allow the user to...