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Core Data Fundamentals

Don't Forget to Save

by Bart Jacobs | Nov 14, 2017 | Core Data

Swift 4 Xcode 9 iOS 11

Core Data Fundamentals

1	Welcome to Core Data Fundamentals
2	What Is Core Data
3	Building Notes
4	Exploring the Core Data Stack
5	Creating the Project
6	Setting Up the Core Data Stack
7	Core Data and Dependency Injection
8	Data Model, Entities, and Attributes
9	Data Model, Entities, and Relationships
10	Configuring Relationships
11	Working With Managed Objects
12	Subclassing NSManagedObject
13	Adding a Note
14	Don't Forget to Save
15	Fetch Those Notes
16	Fix That Mistake
17	To the Trash Can
18	Introducing the Fetched Results Controller
19	Exploring the NSFetchedResultsControllerDelegate Protocol
20	Adding Categories to the Mix
21	Adding a Dash of Color
22	Data Model Migrations
23	Versioning the Data Model
24	Assigning Tags to a Note
25	Working In a Multithreaded Environment
26	Updating the Core Data Manager for Concurrency
27	Using a Better Core Data Stack
28	Replacing the Core Data Manager Class
29	Understanding Faulting
30	Where to Go From Here

You may be wondering why we didn't save the note immediately after creating it. That's a fair question. We could have. But why would we? Why would we push the changes of the managed object context to the persistent store every time something changes in the managed object context? That's a waste of resources and it may even impact performance, depending on the complexity of the operation.

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