The SwiftUI and Core Data Mastery Course

Introduction to the project
What is the idea behind a Zettelkasten (Slip box)
Technical Information
1. Setting up the Project
1.1 Create A Multiplatform Project for Core Data
1.2 iCloud Sync
Deploy to Production
1.3 Note Model and CRUD
1.4 Core Data Stack
1.5 Saving Your Users Data Correctly
1.6 Project Files and Git
2. Unit tests
2.1 Introduction to Unit Testing
2.2 Write your first unit test for core data
2.3 Write a unit test to check FetchRequest for our Note’s objects
2.4 Practicing TDD
2.5 How to write unit test for asynchronous code
3. Schema Attributes
3.1 Schema for Notes
3.2 How to save enum in Core Data
3.3 Rich Text Editor and saving NSAttributedString in Core Data
3.4 PhotoPicker and saving images in Core Data
3.5 Transformable
3.6 Derived Data
3.7 Saving Color as Hex Value
3.8 Color as Single Components
3.9 Color Transformer
4. Relationships
4.1 Introduction to Relationships
4.2 Folder Entity
4.3 Folder Notes Relationship: adding links and delete rules
4.4 Relationships for subfolder, linked notes, and keyword to notes
4.5 Folder List View
4.6 NavigationSplitView
4.7 Note Attachment and Thumbnail Creation
4.8 Core Data Object in Background Task
4.9 Background Image Processing with async/await and task
🖐️ Try It Yourself
5. Fetch Request with Predicates
5.1 Introduction to Search and Sort
5.2 Fetch top level folders
5.3 Folder List View
5.4 NSPredicate for notes search term and compound predicates
5.5 Notes fetch for boolean and enum attributes
5.6 Fetch notes for time period
5.7 Fetching notes in relationship to folders and keywords
5.8 Showing keywords in the notes detail view
5.9 View to add keyword to notes
6. Notes Sorting and Searching
6.1 introduction to Section
6.2 Sorting Notes by Title or Date
6.3 SectionedFetchRequest by Day
6.4 SectionedFetchRequest by by Status
6.5 Sectioning with Multiple Fetch Requests
6.6 Combining the Different Sorting Views
6.7 Searchable View Modifier, Tokens and Scope
6.8 Combining All Search Parameters to One Predicate
6.9 Updating the Note List Views with the Search Predicate
6.10 Show Search Results on iOS
6.11 Finishing Touches
Previous Lesson
Next Lesson

3.1 Schema for Notes

The SwiftUI and Core Data Mastery Course 3.1 Schema for Notes
Please login for access. Login

Difference between convenience init and awakeFromInsert

A class can have multiple convenience initializers. What I want is to enforce setting values for the core data object for ALL objects that are created.

If I set this default value in one convenience initializer and later (like weeks) I might forget that I need to set this specific value there too, I end up having different initializing objects.

If I put the default value set in the awakeFromInsert. This will always be called once an object is created. No matter which initializer I use. 

So I don’t have to copy this to multiple initializers. It is a way for me to make sure this is really set.

Optional String in Core Data

The checkbox for optional in the Schema editor referred to optional for the SQLite database. This is not optional in Swift. If I leave it optional for the database and add or remove this value later, schema changes/migration can be easier to handle.

Previous Lesson
Back to Course
Next Lesson

Leave a Comment