Hi Brian! It is maybe a stupid question but i have to ask. If i want to implement this way of saving and adding companies or similar i am having a problem in case if i have add button in custom tabbar controller. What would be the solution to pass data between view controllers in tabbar? I was thinking of making one delegate which pass company to customTabBarController which is subclass of UITabBarController and then when i select index 1 for example i fire another delegate which pass data to first view controller. Is this the smart way?

Hi Brian do you implement in this Training NSFetchResultController ? Because it handle all the annoying stuff for us ? :) Best regards from Germany

Hi Brian! How do you handle the problem with the container taking some time to initialize? Will you be covering this case in the course? In the Apple Core Data Programming Guide they call a completion block and say to swap out your view controller after initialization completes: https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CoreData/InitializingtheCoreDataStack.html#//apple_ref/doc/uid/TP40001075-CH4-SW1 "On the other hand, you want your application to be able to access data inside of Core Data as quickly as possible, which usually means initializing Core Data as one of the first steps in the application’s life cycle. Although atypical, Core Data occasionally takes longer than usual to complete its initialization." "Therefore, it is recommended that the startup sequence of an iOS app be broken into two phases, to avoid termination:" "A minimal startup that indicates to the user that the application is launching Complete loading of the application UI after Core Data has completed its initialization" import UIKit import CoreData class DataController: NSObject { var managedObjectContext: NSManagedObjectContext init(completionClosure: @escaping () -> ()) { persistentContainer = NSPersistentContainer(name: "DataModel") persistentContainer.loadPersistentStores() { (description, error) in if let error = error { fatalError("Failed to load Core Data stack: \(error)") } completionClosure() } } } What do you recommend or what have you done in your apps to handle this issue? Thanks for sharing your knowledge with us and I'm really liking the course!! Rich

Did huge mistake by naming my project CoreData -.-

Hi Brian, in FetchCompanies instead of companies.forEach({ (company) in print(company.name ?? "") }) self.companies = companies self.tableView.reloadData() I've made : companies.forEach { print($0.name ?? ""); self.companies.append($0) } self.tableView.reloadData() I think less code avoids mistakes, what do you think ?

Hello Brian, Im having a hard time with instructions at 4:57 mark, how do execute view command to get x code to automatically create myEntity+CoreDataSwift.swift file. Thank you

Core data is ugly

Hi Brain For Code data Video 10 I understand your Code logic but Swift does not recognise the code Has there been a change since you recorded?

That video was fire Brian!

Hi Brian, loving this series. I've seen CD usage such as --> let company = Company(context: myContext) company.name = "IBM" do{ try myContext.save() } catch...... It this style newer? I like this much better. Or is this something you go over later in the series? Thanks

Hi Brian, it's a bit confusing how you had to comment out all the references to the Company struct just to get the core data save/fetch code to work. If you have several objects you need to save, is this the best approach? (ie. comment out references to the classes within your app?)

Good stuff, this core data course is great so far

Hi Brian, don't see any method context.save() . Is it replaced with didSave() or willSave() without throwing err?

Is there updated source code available for iOS13? I'm running this project on XCode 11.1 and the layout is all messed up.

Hey Brian, I got some issues about adding core data stack at the beginning step. There are compiler errors show that [Use of undeclared type 'NSManagedObject',Only classes that inherit from NSObject can be declared @objc Replace '@objc(Company)' with '',Use of undeclared type 'NSFetchRequest'] and another three warning which are similar to these three errors. Have tries several times to re-integrate the core data but still does not work. I downloaded your final project that listed on lesson32 and found related comment below the video but still do not found the property solution. I am wondering that whether I have lost some key steps to complete it. If possible, may I add your wechat friends to show you the screenshot?

can someone tell what does "let context = persistentContainer.viewContext // context -" this line do and what is ".viewContext" Thanks

Hi Brian - is there a preferred way to check if an object already exists, before inserting? For my use case, I’m pulling JSON from an API and looping through the response models, UPSERTING them into the context (mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy). This seems fine, however I need to perform an additional operation ONLY for NEW objects - downloading an image via URL and storing/caching the data[] within the object’s attribute. With the current UPSERT technique, I’d be downloading + reading data[] for new AND existing response models, which seems a bit inefficient. Could you share any thoughts on this? Ideally I’d like to keep the data[] within an object’s attribute, rather than moving it to a 3rd party library, such as SDWebImage. Thank you for your thoughts!

hey brian i cant seem to figure out why im not getting anything in my output, i tried searching everywhere but i cant seem to find a solution. im using xcode 11 swift 5

Hey Brian, I am not able to autocomplete or tap into the "MyEntity" at 4:50? Is there a different way to do this is the updated Xcode 11? I looked at video 32 for the completed project, but seems a lot thing have been added and moved around, that I was not able to follow. Appreciate the help!