iOS 15: One-to-many relationships with @FetchRequest and SwiftUI – Core Data SwiftUI Tutorial 7/7

Other parts in Project 12:

7. One-to-many relationships with Core Data, SwiftUI, and @FetchRequest
Challenges: This video

[sxlx]

One man has many dogs.
Many dogs have one man.

[tommy]

Such a great tutorial, you helped me so often!

[hamidehsheikh]

Such a great tutorial, and you are the best teacher. Thank you so much🥰

[tiIIus]

Thank you, that's such great tutorial!

[midlifematt]

I am in the mood for candy now 🍬… those dogs though, wonderful 😊 Love the videos 👍🏻

[oiibrsz]

Another great video. Do you have an example of a core data and a form supporting a many-to-many relationship?

[beanberg]

Thanks so much for your tutorial! It helped me lots

[seungjunlee]

Thanks you sooo much foir this awesome great video!

[oiibrsz]

Great tutorial. Do you have a many to many example? One where you might have to keep additional in the intermediate table? Like Recipe/Ingredient with an intermediate table for amount, or User/Rating/Restaurant, etc.

[uniquecrafter]

If I want to store URLs and UUIDs in Core Data, what should I nil coalesce to when creating those computed properties? A new empty URL instance (i.e URL(fileWithPath: "") and a new UUID() instance respectively?

[isthorify]

Thx for this. I followed this tutorial using swift playground on the iPad. It works fine, but is it possible to set Contraints for Entity manually, not using Xcode ?

[kafran]

Wouldn't it be better to put the wrapped properties as an Extension in another file so it doesn't get rewritten?

[RoustamManookian]

Hi, how to fetch only the Countries without the relationship entities?

[AndyJMacLeod]

Why did Paul call those variables wrappedShortname (etc) rather than unwrappedShortname? Thanks.

[udesai]

Is there a working code for download available?

[oiibrsz]

Couldn't you have the classes automatically created and create an extension class for the object and still use Codegen = class definition?

[cliffspencer]

Paul, shouldn't those convenience properties be called unwrapped* as you are actually unwrapping the optional?

[devsmond]

How can I create data and display it when the app starts, without having to click the button first?

[Alshafi]

how to clean all the errors and warnings?

[wvwojbk]

constraints failed to work in Xcode Version 14.1 beta (14B5024h) sometimes, I added constraints for shortName but I can still see a bunch of entries with the same short name, I even downloaded your project 12 from github and directly run on my mac, still no luck. But previously it worked perfectly for singers with same names, really strange.