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  • Book Overview & Buying Core Data iOS Essentials
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Core Data iOS Essentials

Core Data iOS Essentials

2.8 (4)
Buy this Book
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Core Data iOS Essentials

Core Data iOS Essentials

2.8 (4)
Buy this Book

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)
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Core Data iOS Essentials
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Core Data iOS Essentials
Credits
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Credits
About the Author
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About the Author
Acknowledgement
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Acknowledgement
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Overview
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Overview
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Prerequisite
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A brief history
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Source code
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Shall we begin?
2
Understanding Core Data
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Understanding Core Data
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Core Data
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Data Model
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Model View Controller (MVC)
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Core Data API
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Overview of the application: Sales Record System for a Departmental Store
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Entity Relationship Diagram
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An application output sample
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Automatic Master Product Update
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Summary
3
Understanding Objective-C Protocol and Table View
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Understanding Objective-C Protocol and Table View
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Protocol
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Creating a sample application using a protocol and a delegate
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Introduction to Table View
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Creating an application to display Table View cells
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Adding names to the Table View
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Summary
4
Designing a Data Model and Building Data Objects for Customers
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Designing a Data Model and Building Data Objects for Customers
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Creating a new project
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Designing the data model
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Building data objects for the Customer entity
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Understanding code of autogenerated files
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Summary
5
Creating, Listing, and Deleting Names of Customers
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Creating, Listing, and Deleting Names of Customers
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Splitting the task into two modules
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Creating a module to save and delete a customer's name
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Key value coding (KVC)
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Implementing the methods of the NSFetchedResultsControllerDelegate protocol
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Running the project
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Summary
6
Creating, Listing, Displaying, and Deleting Records of Customers
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Creating, Listing, Displaying, and Deleting Records of Customers
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Understanding multiple managed object context
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Applying the concept of multiple managed object context in our application
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Enhancing our application to save, list, display, and delete customer information
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viewDidLoad method
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cell AtIndexPath method
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didSelectRowAtIndexPath method
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addCustomer method
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addcustomerController method
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Summary
7
Updating and Searching Records of Customers
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Updating and Searching Records of Customers
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Applying the update feature
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Using KVO to know what has been updated
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Running the project
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Applying search facility
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Understanding NSPredicate
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Removing the keyboard after selecting a customer's name
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Using Predicate Builder for creating a search criterion
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Summary
8
Entering, Saving, Listing, and Deleting the Records of the Products Sold to the Customers
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Entering, Saving, Listing, and Deleting the Records of the Products Sold to the Customers
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Adding the product entity to the Data Model
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Relationship
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Establishing a relationship between the Customer and the Product entities
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Building the data object for the Customer and the Product entities
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Entering the information of the products sold to the customers
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Creating a module to develop an interface to enter the product information
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Developing a module to create a menu for manipulating the product information
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Creating a module to connect the Product's menu to the rest of the project
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Running the project
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Summary
9
Entering, Displaying, and Deleting the Stock
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Entering, Displaying, and Deleting the Stock
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Adding the MasterProduct entity to the Data Model
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Storing the image of the MasterProduct
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Building the data object for the MasterProduct entity
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Maintaining the MasterProduct information
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Summary
10
Editing the Stock Information
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Editing the Stock Information
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Module to connect the MasterProduct's menu to the rest of the project
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Running the application
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Module to modify the information of the master product
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Summary
11
Displaying the Products for Sale and Updating the Stock
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Displaying the Products for Sale and Updating the Stock
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Displaying the products available for sale
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Updating the stock
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Automatically updating the quantity of the product in the MasterProduct entity
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Versioning
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Migrations
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Summary
1
Appendix
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Appendix

Appendix A. Appendix

Attributes: Attributes are the variables within an entity. They are also known as columns of the table in database language terms. For example: name, address, contact number, and so on.

CGRect structure: The CGRect structure is used for holding the location and dimension of the frame of a window on the screen.

CGRectMake function: The CGRectMake function is used for defining the frame of a window of an object. With the help of this function, we specify the coordinates of the origin as well as width and height of the frame.

CGSize structure: The CGSize structure represents a size of a rectangle and is used for storing information related to width and height of the object.

CGSizeMake function: The CGSizeMake function is used for defining the width and height of an element.

Core Data API: The Core Data API is a stack that consists of three main components, NSPersistentStoreCoordinator, NSManagedObjectModel, and NSManagedObjectContext.

Data Model: The Data Model refers...

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