Hi Brian, Thanks for your teaching course, which is of great benefits to us. I have a question: when should we use NSIncrementalStore and how to use it appropriately ?

Thank you Brian! This course is helped me a lot!

Hey Brian, thanks for the course. I am almost done, but keep getting this error during custom migration and I have no clue what is wrong. Please help ... returned error Error Domain=NSCocoaErrorDomain Code=134110 "(null)" UserInfo={NSUnderlyingException=Couldn't create mapping policy for class named (LBTA-CD.CustomMigrationPolicy)} with userInfo dictionary { NSUnderlyingException = "Couldn't create mapping policy for class named (LBTA-CD.CustomMigrationPolicy)"; }

Great course Brian. Nice job!

hey man great course really like that you are the only one on the internet teaching code in ui. I believe you create the best student really appreciate you man. I just really want you to have all the beginners into swift to learn with you that way is a better understanding with that being said have you ever tried making a video on convincing how ui code is better than storyboards and showing them in code this is why is better and if someone drags a tableView in story board how to show them how to do the same in code like that they can also see other videos and fully understand how to do it in code cus every job you need to be able to make ui in code

Really great course! Thank you very much Brian! Videos like these are so motivating keeping on doing ios-development. Hope you're not falling off too much into Kotlin/Android Development ;)

Great course! Thanks! I’m curious about how this would work to use Core Data and also store on Firebase or some other database — in case there’s anything in particular needed to be done to work with both Core Data and Firebase.

Awesome! Had a lot of fun!

Hello I started the downloaded project with no adjustments after create employee and save: get error employee setvalue for undefined key the entity employee is not key value coding compliant for the key name

Hey Brian. I just finished the intermediate training core data project after the kindle basic course and quite enjoyed that one as well. Learned a ton. Will you add new episodes to this project? It feels like it will continue on the last video? Thanks again. Will continue with instagram next week and podcasts next month. Cheers!

​Hi Brian, I thought there is still some content missing from this tutorial. We implemented many features on table view which was absent on company autoupdateController. Every time I refresh the company autoupdate controller it's adding all the companies again in the table view. I thought it would add any new company that changes in the JSON file but it's not doing that for me. Your input is really appreciated.

Can’t express my feelings!! Thank you very much for all of this great teachings ❤️❤️❤️

Awesome training course Brian! Your instruction style is very effective. I look forward to future iOS and Swift courses you put together.

YAGC = Yet Another Great Course. I request a short 15' Bonus lesson showing us how to persist a video as a Core Data blob. Maybe we can figure this out for ourselves, but I always like to begin with your procedure, so I know it will be professional.

Really love your course man ! Thank u so much for all the hard work.

Brian, this course was a perfect match for me! I am an experienced LAMP developer and will be writing an iOS app. The pace and depth was just right. I feel you provided all the tools I need to get started. Keep up the great work.

Another one done! I've been trying to learn Swift for a long time now, and this format has worked for me FAR greater than anything else. Thanks, and looking forward to the next courses.

Finished this one. Had a lot of in-depth learning on CoreData. Another great course, Thanks! Hoping to complete Instagram and Podcasts courses as well.

Brain, thank you so much for creating this course. I learned a lot from you in this course. I have been learning iOS development for four months now and the money spent on this course was the greatest investment I ever made. I am also enrolled in Instagram Course and I will start that course from the next week. Would like to buy your upcoming courses on this website? Thanks once again, Shubham Saurav

Hello Brian, thank you so much for this course. I have the following doubt: suppose a user didn't update from version 1.0 to 1.1, and you as developer release the version 2.0. Is not clear for me if once the user hit update in Apple Store, the process update first to version 1.1 and the to 2.0 or starts the update directly to version 2.0. I tried to replicate the scenario installing the application of the video 30 and then update Core Data running the application from video 32, the application crashed because the intermediate update from video 31. Could you help us with this scenario?

Thanks Brian , Your teaching style is excellent , I learned a lot.

Brian, I loved your course, but I have a problem: I want in an entity called Room, to have an array of the entity Person (basically I want an attribute in Room with a custom type Person), but when doing room.persons = currentRoomPersons the application is blocked and a SIGARBT error occurs, the current code it's something like this: Room+CoreDataClass.swift: import Foundation import CoreData @objc(Room) public class Room: NSManagedObject {} Room+CoreDataProperties.swift import Foundation import CoreData extension Room { @nonobjc public class func fetchRequest() -> NSFetchRequest<Room> { return NSFetchRequest<Room>(entityName: "Room") } @NSManaged public var persons: [Person]? // Array of entity "Person" in the room. } What am I doing wrong? Great videos!

老师我遇到一个问题，但不是您课程里的，不知道能不能问。 就是，我现在所有东西都是程序写的，没有用storyborad，我现在想在一个uiview上有一个segment来选择显示两个uitableview，但是我发现不会如何将以ui tableview添加到这个uiview上面去，我网上查了半天都是用storyboard方法的，所以只能来麻烦您了。您给个大概思路就行，非常感谢。

Finally finished this last tutorial. Core Data done!

老师你好，我看见从json download image你没有implement于是自己写了一个。 guard let imageurl = URL(string: jsonCompany.photoUrl) else { return } print (imageurl) URLSession.shared.dataTask(with: imageurl) { (data, resp, err) in if let err = err { print ("Failed to download image", err) return } guard let data = data else {return} print(data) company.imageData = data } 但是当我refresh的时候，table view并没有更新公司的照片，这是为什么呢？谢谢

Hi Brain I've done a project with core data it has 13 entities embedded with all type of relations. I'm trying to sync with CloudKit by using 'NSPersistenceCloudKitContainer' iOS13. the schema is not copying to the iCloud container. Can you help me out. Thanks S Shanakar

Excellent course. Will definitely rewatch one last time

Awesome course, i really hope you will consider to adding one more bonus video to sync this app to CloudKit.

Hello Brian, my sincere congratulations on a great course. Your learn-by-doing teaching style is superb, as is your attention to detail. Definitely top-notch. I have one question, though, not at all related to programming: I could not find any of the "links down below" for things such as a more in-depth explanation of tuples (lesson 18), or DispatchQueues, or whatnot. Are the links on another, perhaps earlier, platform where you placed your courses? -- Nelson (Cal Berkeley '93)

Hello Brian, A quick question when you have changed the value expression with "FUNCTION($entityPolicy, "transformingMethodName" , $source.numEmployees)" this is my own value expression for numEmployees which I have put in my ComanyToCompany mappings and now I have build a transformation file which extends "NSEntityMigrationPolicy". And now I have implemented a method transformingMethodName wwhich I have written as ``` @objc func transformingMethodName() -> Int { return 900 } ``` So I am getting a crash. And when i write a function with Void returns It won’t gives me crash ``` @objc func transformingMethodName() { } ``` So now the question is How do I change the data for my attribute in this class. i am not able to write the methods here. And when I do it It gives me a crash. I am not understanding the way how do you start began writing methods here and change the attributes value respectively.