Core Data

Building Type‑Safe, High‑Performance SwiftData / Core Data Models

Apr 23, 2025 #SwiftData #Core Data

Learn to build Type-safe, efficient SwiftData/Core Data models using computed properties, bitmasks, and custom types like ValidatedName to enforce business logic and improve query performance.

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Model Inheritance in Core Data

Dec 11, 2024 #SwiftData #Core Data

Explore Core Data's model inheritance: Parent, Sub, and Abstract entities. Learn the pros, cons, and how to achieve similar effects without direct use.

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Using Transactions Instead of Save in SwiftData and Core Data

Nov 20, 2024 #SwiftData #Core Data

Explore how to use transactions in SwiftData & Core Data for reliable data persistence. Improve app performance & ensure data integrity with proper transaction management.

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Mastering Data Tracking and Notifications in Core Data and SwiftData

Nov 6, 2024 #SwiftData #Core Data

Explore data tracking in Core Data & SwiftData, from custom notifications to Persistent History Tracking, for robust data sync solutions. Learn key techniques.

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Starting with Project Refactoring: Sharing Five Swift Modules

Oct 30, 2024 #Swift #Frameworks #Core Data #SwiftData

Explore five open-source Swift modules from a recent app refactor, including SimpleLogger, iCloudSyncStatusKit, ObservableDefaults, CoreDataEvolution, and ModelActorX.

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Reinventing Core Data Development with SwiftData Principles

Oct 16, 2024 #SwiftData #Core Data

Explore how to apply SwiftData's modern data modeling and concurrent programming principles within Core Data. Enhance stability, reliability, and innovation.

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NSManagedObjectID and PersistentIdentifier: Mastering Data Identifiers in Core Data and SwiftData

Sep 25, 2024 #SwiftData #Core Data

Explore NSManagedObjectID and PersistentIdentifier in Core Data and SwiftData. Learn their features, usage, and how to manage data object identity efficiently.

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Core Data Reform: Achieving Elegant Concurrency Operations like SwiftData

Apr 18, 2024 #SwiftData #Core Data

Explore how to bring SwiftData's elegant concurrency to Core Data. Learn to implement a Core Data version of @ModelActor using custom executors for safer, efficient data handling.

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Mastering Relationships in Core Data: Practical Application

Jan 11, 2024 #Core Data

Explore practical techniques for handling Core Data relationships, including optionals, collection types, derived attributes, subqueries, and optimization tips.

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Mastering Relationships in Core Data: Fundamentals

Jan 4, 2024 #Core Data

Explore Core Data relationships: types (one-to-one, one-to-many, many-to-many), inverse relationships, delete rules, and optimization for efficient data management.

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Exploring CoreData - From Data Model Creation to Managed Object Instances

Sep 19, 2023 #Core Data

Dive into Core Data's inner workings: learn how it builds managed object instances from a data model. Explore model creation, NSManagedObject subclasses, and more.

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SwiftDataKit: Unleashing Advanced Core Data Features in SwiftData

Sep 7, 2023 #SwiftData #Core Data

Explore how to use Core Data's advanced features in SwiftData with SwiftDataKit, bypassing the Core Data stack. Enhance SwiftData with grouped counts and subqueries.

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WWDC 2023, What’s New in Core Data

Jul 4, 2023 #Core Data

Explore Core Data’s WWDC 2023 updates: composite attributes, Swift-friendly predicates, version checksum, deferred & staged migration. Learn how these enhancements benefit your data management.

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Memory Optimization Journey for a SwiftUI + Core Data App

Mar 8, 2023 #Core Data #SwiftUI

Optimize memory in SwiftUI + Core Data apps! This guide uses a sample to enhance performance, covering lazy views, managed objects, and row cache. Learn to reduce app crashes.

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SwiftUI and Core Data: Safely Responding to Data

Dec 13, 2022 #Core Data #SwiftUI

Learn to handle Core Data in SwiftUI safely, prevent crashes, ensure real-time updates, and provide accurate data with best practices.

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SwiftUI and Core Data: Data Fetching

Dec 6, 2022 #Core Data #SwiftUI

Learn how to efficiently fetch Core Data in SwiftUI with a custom FetchRequest using mock data for testing and previewing. Enhance your data handling strategies now!

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SwiftUI and Core Data: Data Definition

Nov 29, 2022 #Core Data #SwiftUI

Explore a modern approach to SwiftUI & Core Data data definition. Learn how to decouple views from managed objects using protocols for better flexibility & testability.

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SwiftUI and Core Data: The Challenges

Nov 22, 2022 #Core Data #SwiftUI

Explore the challenges of integrating Core Data with SwiftUI & TCA. Discover solutions to improve data definitions, testing, and concurrency, while retaining Core Data's strengths.

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Ask Apple 2022 Q&A Related on Core Data (Part 2)

Oct 24, 2022 #Core Data #Apple Event

Explore Core Data insights from Ask Apple 2022, Part 2. Learn about derived attributes, syncing, Spotlight, @FetchRequest, and more. Includes expert tips.

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Ask Apple 2022 Q&A Related on Core Data (Part 1)

Oct 20, 2022 #Core Data #Apple Event

Explore Core Data insights from Ask Apple 2022 Q&A, covering topics like storing photos, iCloud sync, handling errors, data sharing, and more. Part 1 of a detailed analysis.

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Switching Core Data Cloud Sync Status in Real-Time

Jul 26, 2022 #Core Data #CloudKit

Explore how to enable or disable Core Data CloudKit sync in real-time using dual containers & persistent history tracking. Learn the implementation details.

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Batch Operations in Core Data

Jun 6, 2022 #Core Data

Explore Core Data's batch operations: principles, usage (delete, update, insert), advanced techniques, and essential considerations for efficient data handling.

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How Core Data Saves Data in SQLite

May 31, 2022 #Core Data

Explore how Core Data saves data in SQLite. Learn about tables, fields, persistent history tracking, and entity relationships. Understand Z_PK, Z_ENT, and more.

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Count Queries in Core Data: The Master Guide

Jan 17, 2022 #Core Data

Explore various methods for querying and using count in Core Data, including countResultType, managed object context, result sets, relationships, and derived properties. Learn how to optimize count queries for different scenarios.

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How to Deep Copy NSManagedObject in Core Data

Nov 15, 2021 #Core Data #Frameworks

Explore deep copying NSManagedObject in Core Data: challenges, solutions, and MOCloner tool. Learn how to handle complex relationships and customize data copying.

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Several Tips on Core Data Concurrency Programming

Nov 5, 2021 #Core Data

Explore Core Data concurrency tips: debug params, reduce blocking using perform, NSManagedObjectID & more. Enhance your app's performance & avoid common pitfalls.

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Mastering Core Data Stack

Nov 2, 2021 #Core Data

Learn how to design a robust Core Data Stack, covering its functions, components like NSManagedObjectModel and NSPersistentStoreCoordinator, and configurations. Understand the evolution from basic setup to advanced features like CloudKit and persistent history tracking.

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How to use Derived and Transient Properties in Core Data

Oct 26, 2021 #Core Data

Explore Derived & Transient properties in Core Data. Learn how to set them up, use them for efficient data management, and understand their benefits & limitations.

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Showcasing Core Data in Applications with Spotlight

Sep 22, 2021 #Core Data

Learn how to use NSCoreDataSpotlightDelegate to add your app's Core Data to Spotlight, increasing visibility and user findability. Updated for WWDC 2021, includes persistent history for automatic updates.

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Core Data with CloudKit: Sharing Data in the iCloud

Sep 11, 2021 #CloudKit #Core Data

Explore how to build apps that share data with multiple iCloud users using Core Data with CloudKit. Learn about owners, participants, CKShare, and more.

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How to Preview a SwiftUI View with Core Data Elements in Xcode

Aug 28, 2021 #SwiftUI #Core Data

Explore reasons for SwiftUI preview crashes with Core Data, learn to avoid them, and reliably preview views in Xcode. Includes tips on data management for previews.

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Core Data with CloudKit: Synchronizing Public Database

Aug 13, 2021 #CloudKit #Core Data

Learn how to synchronize a public CloudKit database to your local Core Data, creating a mirror for offline access. Explore public vs private databases, and sync mechanisms.

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Core Data with CloudKit: Troubleshooting

Aug 11, 2021 #CloudKit #Core Data

Explore common issues in Core Data with CloudKit projects, including sync errors, migration problems, & account issues. Learn debugging tips and solutions.

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Core Data with CloudKit: Exploring the CloudKit Dashboard

Aug 9, 2021 #CloudKit #Core Data

Explore the CloudKit Dashboard: databases, environments, security roles, indexes, record types, zones, records, subscriptions, tokens, telemetry, & logs. Understand CloudKit functionalities for Core Data projects.

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Core Data with CloudKit: Syncing Local Database to iCloud Private Database

Aug 9, 2021 #CloudKit #Core Data

Explore Core Data with CloudKit: sync local database to iCloud private database. Learn setup, syncable model considerations, and selective data synchronization for your app.

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Core Data with CloudKit: The Basics

Aug 5, 2021 #CloudKit #Core Data

Explore Core Data with CloudKit: seamless cloud storage & multi-device sync for your apps. Learn its advantages, limitations, and key concepts. Dive in now!

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Using Persistent History Tracking in CoreData

Jul 27, 2021 #Core Data

Explore CoreData's Persistent History Tracking: Respond to changes, fetch, merge, & purge transactions. Includes code for batch ops, app groups, & CloudKit sync. Enhance your app!

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Discussing CoreData Usage in SwiftUI

Oct 28, 2020 #SwiftUI #Core Data

Explore lessons learned using CoreData in SwiftUI development over the past year. Discover insights on persistent storage, dynamic @FetchRequest, a transformation layer, and issues with NSPersistentCloudKitContainer. Avoid SQL thinking with CoreData.

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