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 MasterProduct entity is added to our existing Data Model. We also saw creation of image attribute (for storing image of master product) of Transformable data type and created a Value Transformer to be used for converting an instance of UIImage into an NSData instance (while storing image to the persistent store) and for converting the NSData instance back to the UIImage instance while retrieving it from the persistent store for display. We also developed a Data Model (classes) associated with the MasterProduct entity. Also, we focused on entering and maintaining the information of the master product that our vendor deals with. The maintenance of the master product's information includes displaying, adding, deleting, and modifying the information and hence, the task is divided into four modules. We first developed a module that created a View to enter information of the master product that is available for sale. Then, to allow the user to add, save, and...