You are amazing! I`ve just watch a 4-hour Udemy course from DevSlopes and understood less information than in your 15-minutes tutorial!) Thank you again, Swift Guy!)
I have searched and searched for a Tutor to explain how, 1, to explain CoreData and 2, apply the use of CoreData in its simplest form. You nailed it. I can begin to create small samples and enjoy using the framework Thank you. SwiftGuy
Appreciate! I had seen several videos about Coredata in youtube. This vedic is the shortest one buuuuuuuut probably the most useful one for some one new to Coredata. Thank You !
Terrific video and information to provide a novice programmer with all they need. Thanks so much swift guy you are a great internet personality and very clear, and thorough in your tutorial presentation. Until next time, Cheers!
"All you have to do is implement this code and do some things here..." HAHA ok yeah I can follow along and type the same things I see on your screen onto my ViewController but I really don't understand what all the different bits of code do. I SO appreciate your publishing this video and showing a simple example, and I got it to work, but I don't really understand what it's all doing. I'll come back and revisit this video in a few weeks and perhaps it will make more sense. Anyway thanks for sharing this!
OK I do have one specific question: should we be able to view the contents of the core data without having to write it out in arrays and print those arrays? Like if I click on the "Core_Data_Fun.xcdatamodelid" under the "Core Data Fun" folder should it contain all the username and password that were passed in? I'm seeing nothing here. Note that I did get an error early on something like it didn't recognize the "context" variable I defined to it defaulted to something else. Is this why I don't see anything in the core data storage? Also I don't get the many lines of output I see on your screen just the username and password elements printed out on the results line. And of course it also did place them into arrays and the arrays printed out ok. I feel like somewhere the various paths I set up for storing core data didn't connect. Note that i'm working in xcode 7 rather than xcode 8 as you are. Don't recall what version of swift I installed I think version 2. The xcode download from apple was 7.2.1 for my computer/OS. Thanks for any feed back.
Hi SG, Your video is super informative! I noticed that you created it over 6 years ago, but it still works perfectly. I'm planning to try it on my Mac, and I hope it works just as well. If possible, could you create a video that shows how to delete records from my database? Thank you!
Do you have a tutorial on whether/how CoreData can be stored and accessed remotely? I need a cloud-based database that multiple users/devices can have access to.
hey! i'm stuck on the let context = appDelegate.persistentContainer.viewContext line, seems there are two appDelegates but neither have the persistentContainer method?
There should not be 2 appDelegates. You mean one is "appDelegate" and the other that comes up is "AppDelegate"? If so, then it's ok. Make sure that you started with "CoreData" check marked when you made your app. If you forgot to do that but want to continue working on the app that you already made, then try here stackoverflow.com/questions/29109313/core-data-problems.
Dear SG could you please outline how you would enter and save a double value, (assuming it came from a UITextfield) via the newUser.setValue( ) please?
You would simply have to save the value from the text field as a double: let myDoubleValue:Double = Double(myTextField.text) Then you would save that variable in your user default just like you would any normal value. Let me know how it goes
hii, i could not use persitentContainer. Error : Value of type 'AppDelegate' has no member 'persistentContainer' it doesn't even shows 'persistentContainer' in suggestion list. it rather shows 'persistentStoreCoordinator' only. And if i use it ,then adding viewContext followed by a dot shows me an error ( Value of type 'NSPersistentStoreCoordinator' has no member 'viewContext') Using Xcode 8, swift 3.0
Hi Sebastian! First, I want to say thank you so much for making these videos. Really cool of you to do that. I have a question about core data and if you could help out that would be awesome. I want to let the user create a folder name and within it, I want to have three String arrays, an optional string array, and a boolean array. I can't figure out how to do this though. Do you have any suggestions? Any help would be much appreciated. Thanks again!
Nice video. But apart from storing and loading data, it would be better to also cover how to DELETE data from core data. Bet that's a functionality lots of applications need!
Hi Swift Guy! How if you do a tutorial creating a database (sqlite manager for example) and using it with core data? I didn't´t found any tutorial like that
Hello! Great job on your tutorials, though I have some questions. I am at this video from your toDo list video, and whenever I would close the toDo app, and reopened it, it would go back to the default to do's like "buy milk", "get peter", (etc.) How can I get it so that someone could add something to the list, close the app, and have it saved? Thanks -- Sasha
Hi, to make things even simpler I would suggest that you check out my UserDefaults video. You will have to update the checklist every time the user adds or deletes an item. Then you have to store that array in the UserDefaults. Tell me how it goes. If you dont have success with it, I will make a video on it.
Thanks for the quick reply! I appreciate it. I see in the UserDefaults video, the first thing you do is create a Single View Application. I want to be able to store data in my todo app, so would i still create the Single View App? Also, if i have to, how would i link it to my To Do App? Thanks - Sasha
I want to join your Udemy course but didn't find it in the Udemy App for iOS. Could you help me with this please? PS: You're awesome! learned 90% from you :D
im getting this error any idead i only program the part of saveing user and password when i run it i get this error libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)
You would have to send me the whole error in order for me to take a shot at what it might be:) But, make sure that you have established the context to your core data
there is now errors in my Viewcontroller.Swift but i didn't run the app successfully . it throws an error message as "reason= Source and destination files are incompatible" and also points line number 70 in AppDelegate.Swift
Good job 😊if I have data on JSON , I can save it in CoreData ?? Like UserName and Password I have it on JSON and I want device remember it on next time .
How to save an array of image to core data Can you make a video about how Just like a contact app that have a insertViewController with photo input and text input for user and save in an array
hi , please do or share coredata versioning, migration and mapping coredata versioning i have 2 entities, 1st entity A,B,C , 2nd entity D , E, how to save and retrieve A,B,C,D,E in coredata please reply asap
The Swift Guy thanku so much for the video !! could you please help me out with the error i am facing, i.e, USE OF UNRESOLVED IDENTIFIER 'NSEntityDEscription'
Mr. Guy (or may I call you "Swift"?) I really appreciate the help. You have given me a real assist. But I wonder about the context. Who are you? Where are you? Are you giving us hidden clues? You are European. And young. And you live in a 1-room apartment. Where? Amsterdam? Osaka? Hong Kong? Are you Austrian? Belgian? Swiss? A college kid? Do you ever have a girl over in your little nest? Do tell!!
Bro i have an issue .i made table view and add some tasks to second controller.its working but when i do not put any thing in textfield and add it to in table view .the empty row create ???what can i do help me???
Arslan Ali. How are you handling an error? I think you're doing it wrong. See here developer.apple.com/library/content/documentation/Cocoa/Conceptual/CoreData/CreatingObjects.html#//apple_ref/doc/uid/TP40001075-CH5-SW1
You are amazing! I`ve just watch a 4-hour Udemy course from DevSlopes and understood less information than in your 15-minutes tutorial!) Thank you again, Swift Guy!)
You are welcome!:)
so true!
I second this haha
He isn't amazing, he's stealing shit from Ray Wenderlich and passing it off as his own. fucking thief.
I have searched and searched for a Tutor to explain how, 1, to explain CoreData and 2, apply the use of CoreData in its simplest form.
You nailed it.
I can begin to create small samples and enjoy using the framework
Thank you. SwiftGuy
This tutorial is more helpful than all the other core data tutorials out there. Thank you and keep it up!
Awesome, glad to hear that!:)
Thank you for this video! I've learned more about Core Data from this video than my iOS classes
Haha, thank you;)
Appreciate!
I had seen several videos about Coredata in youtube.
This vedic is the shortest one buuuuuuuut probably the most useful one for some one new to Coredata.
Thank You !
And it is for Swift 3.0.
Awesome!
Thank you! Glad you appreciate it and that the video was able to help you:)
Very clear and well presented! Keep on doing what your doing man.
Thank you! Will do:)
Terrific video and information to provide a novice programmer with all they need. Thanks so much swift guy you are a great internet personality and very clear, and thorough in your tutorial presentation. Until next time, Cheers!
Thank you TheSwiftGuy! A perfect video tutorial for beginners which really teaches the CD basics
You got a gift for making things look easy. Appreciated.
Thanks man, you saved me from a lot stress! Nice tutorial! Simple and straight to the point.
Awesome, glad to hear that;)
I love your video's. You make complicated software seem simple. Thank you.
You are so cool at describing complicated things in an easy manner :)
Super glad to hear that - thanks!!:)
"All you have to do is implement this code and do some things here..." HAHA ok yeah I can follow along and type the same things I see on your screen onto my ViewController but I really don't understand what all the different bits of code do. I SO appreciate your publishing this video and showing a simple example, and I got it to work, but I don't really understand what it's all doing. I'll come back and revisit this video in a few weeks and perhaps it will make more sense. Anyway thanks for sharing this!
So nice thanks Buddy
You can code and teach! I love your videos! You are awesome, swift guy!
simply the best tutorial on core data
OK I do have one specific question: should we be able to view the contents of the core data without having to write it out in arrays and print those arrays? Like if I click on the "Core_Data_Fun.xcdatamodelid" under the "Core Data Fun" folder should it contain all the username and password that were passed in? I'm seeing nothing here. Note that I did get an error early on something like it didn't recognize the "context" variable I defined to it defaulted to something else. Is this why I don't see anything in the core data storage? Also I don't get the many lines of output I see on your screen just the username and password elements printed out on the results line. And of course it also did place them into arrays and the arrays printed out ok. I feel like somewhere the various paths I set up for storing core data didn't connect. Note that i'm working in xcode 7 rather than xcode 8 as you are. Don't recall what version of swift I installed I think version 2. The xcode download from apple was 7.2.1 for my computer/OS. Thanks for any feed back.
Nice one, clearly explained. Thanks man
Glad you liked it!:)
This video saved my life, you're the goat
haha, I guess that is a good thing;)
Hi SG, Your video is super informative! I noticed that you created it over 6 years ago, but it still works perfectly. I'm planning to try it on my Mac, and I hope it works just as well. If possible, could you create a video that shows how to delete records from my database? Thank you!
thanks sir
I know 70% of swift , just because your tutorial
Thats awesome to hear!
Do you have a tutorial on whether/how CoreData can be stored and accessed remotely? I need a cloud-based database that multiple users/devices can have access to.
Very useful and well explained. Thx!
Thank you Gavin!
Thanks, it works perfect on my app!! I'll try deleting the data that I added in the context.
Glad to hear that!
Thanks for the video, do you know if making an App for iOS and Android can I use this method and access the data from Android ?
great vid! and whats the best way to store the session data, eg session key?
Very informative tutorial, keep it up :)
Glad to hear that you enjoyed it!;)
You are doing fantastic job there ;)
Thanks!:)
thank u so much its very interesting and great job friend
Thank you!:)
s thanks friend
Thank you for this. Very helpful. Keep it up!
Glad you liked it!:)
Thank you for all tutorials I have question
Great video! What is the difference between creating a new user with NSEntityDescription and doing something like: let user = User(context:context) ?
thank for making this videos! Can you please make a video about notifications
Saw the comment a bit late. They are at least up now:P
get your ugly ass off of here, at least until you clean up that fucking acne and turn that stupid fucking hat around you dipshit.
hey! i'm stuck on the let context = appDelegate.persistentContainer.viewContext line, seems there are two appDelegates but neither have the persistentContainer method?
There should not be 2 appDelegates. You mean one is "appDelegate" and the other that comes up is "AppDelegate"? If so, then it's ok. Make sure that you started with "CoreData" check marked when you made your app. If you forgot to do that but want to continue working on the app that you already made, then try here stackoverflow.com/questions/29109313/core-data-problems.
thanks!
thanks thanks thanks ...now i understand core data :)
Awesome!:)
please i have a question . i can't get the info from my core data i mean its doesn't appear in my console. and i didn't have any error
Any way you could explain how to delete a record from the Entity using this same method?
Thanks a lot for this super video, very helpful
Glad to hear that! You are welcome;)
Thank you so much to share your information and your knowledge.... I want login form in Swift language plz share a video of that
Dear SG could you please outline how you would enter and save a double value, (assuming it came from a UITextfield) via the newUser.setValue( ) please?
You would simply have to save the value from the text field as a double:
let myDoubleValue:Double = Double(myTextField.text)
Then you would save that variable in your user default just like you would any normal value. Let me know how it goes
Thank you. it went well. - I am checking your Udemey course out now - I like your tutorials and your style.
hii, i could not use persitentContainer.
Error : Value of type 'AppDelegate' has no member 'persistentContainer'
it doesn't even shows 'persistentContainer' in suggestion list. it rather shows 'persistentStoreCoordinator' only. And if i use it ,then adding viewContext followed by a dot shows me an error ( Value of type 'NSPersistentStoreCoordinator' has no member 'viewContext')
Using Xcode 8, swift 3.0
I belive there are two AppDelegates. Make sure that you select the right one that has the member persistentContainer
Thanks man. I got it.
Hi Sebastian! First, I want to say thank you so much for making these videos. Really cool of you to do that.
I have a question about core data and if you could help out that would be awesome. I want to let the user create a folder name and within it, I want to have three String arrays, an optional string array, and a boolean array. I can't figure out how to do this though. Do you have any suggestions? Any help would be much appreciated. Thanks again!
I am really wondering that how do you delete data from the core data?
This tutorial is great. Congrats. Can you also post a video showing hoe we save and retrieve images with core data?
I will definitely make a video on how to store images locally:)
How soon can we expect it? :)
Nice video. But apart from storing and loading data, it would be better to also cover how to DELETE data from core data. Bet that's a functionality lots of applications need!
Swift Guy is cool - knows his stuff!!
Haha, thank you Marc!:)
This tutorial is useful. How do you search for an item in an array using core data with textfield?
Make sure to check out my video on how to change core data, that will provide you with the concepts that you need:)
Thanks for the reference on how to change core data. I'll look into searching the item using NSPredicate.
there's no core data check for "tabbed apps"... how does that work?
Hi Swift Guy! How if you do a tutorial creating a database (sqlite manager for example) and using it with core data? I didn't´t found any tutorial like that
how to build retail pos system app in xcode?
Hello! Great job on your tutorials, though I have some questions. I am at this video from your toDo list video, and whenever I would close the toDo app, and reopened it, it would go back to the default to do's like "buy milk", "get peter", (etc.) How can I get it so that someone could add something to the list, close the app, and have it saved? Thanks -- Sasha
Hi, to make things even simpler I would suggest that you check out my UserDefaults video.
You will have to update the checklist every time the user adds or deletes an item. Then you have to store that array in the UserDefaults. Tell me how it goes. If you dont have success with it, I will make a video on it.
Thanks for the quick reply! I appreciate it. I see in the UserDefaults video, the first thing you do is create a Single View Application. I want to be able to store data in my todo app, so would i still create the Single View App? Also, if i have to, how would i link it to my To Do App? Thanks - Sasha
Groove Nope, it does not have to be a single view application. UserDefaults work on all types of applications:)
The Swift Guy So then how would i link my already made project with the userdefaults?
I want to join your Udemy course but didn't find it in the Udemy App for iOS. Could you help me with this please?
PS: You're awesome! learned 90% from you :D
Thanks! Great tutorial!
Thanks!;)
Good video helped me a lot.
Glad to hear that!:)
thank you a lot, you r great Swift Teacher 10^10 likes
It would also be nice to know how to load in data only the first time the app is run.
im getting this error any idead i only program the part of saveing user and password
when i run it i get this error
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
You would have to send me the whole error in order for me to take a shot at what it might be:) But, make sure that you have established the context to your core data
The Swift Guy I'm using Xcode 8.2.1 does this make a drefrence
hi, would you please do a tutorial on how to export Core Data into a excel file, Thanks for your time and great videos
there is now errors in my Viewcontroller.Swift but i didn't run the app successfully . it throws an error message as "reason= Source and destination files are incompatible" and also points line number 70 in AppDelegate.Swift
very simple, thanks!
Thanks for watchin!
how do I update and delete data in core data , will be waiting for your reply swift guy
Thank you for this video! How can we edit our data? For example, if I want to change password for last added user?
You are going to have to do that in the same function that you are retrieved the data. I will make sure to do a video on that though
thanks man! helped me again!
:)
How do u delete data from the core data?
Excelllent
Good job 😊if I have data on JSON , I can save it in CoreData ?? Like UserName and Password I have it on JSON and I want device remember it on next time .
Yes, you can save it to Core Data;) Just loop trough the JSON data and save them one by one in the Core Data
Thank You very much , my idea good ? for save username & password in coreData ?
I want my deployment target to iOS 8.0 its showing error how to rectify that?
Very useful.
Great,)
great video bro
Thank you Andre:)
hey men! thanks for your support! :D
You're welcome Fernando!;)
How to save an array of image to core data
Can you make a video about how
Just like a contact app that have a insertViewController with photo input and text input for user and save in an array
Mrandrew ijjniiblnnnionjomoknjnjjonnjjij
Thx man, but why people say that CoreData is so complicated?
haha, dont know:)
hi , please do or share coredata versioning, migration and mapping coredata versioning i have 2 entities, 1st entity A,B,C , 2nd entity D , E, how to save and retrieve A,B,C,D,E in coredata please reply asap
EXCELENTE!! Gracias
Your welcome!:)
hahahaha I liked your...
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}
COOL! HAHHAAH
haha, yes - habit;)
I faced a lot of errors when I use these code...
Are you filming this in a train?
Haha, almost - on a boat:)
Are you on the train?
how to delete data?
Thank You!!
:)
The Swift Guy thanku so much for the video !! could you please help me out with the error i am facing, i.e, USE OF UNRESOLVED IDENTIFIER 'NSEntityDEscription'
Make sure that you spell NSEntityDescription with a small e, instead of E ;)
The Swift Guy tried wid e too ,but facing same error
The Swift Guy tried wid e too ,but facing same error
Thanks!
Mr. Guy (or may I call you "Swift"?)
I really appreciate the help. You have given me a real assist.
But I wonder about the context. Who are you? Where are you? Are you giving us hidden clues?
You are European. And young. And you live in a 1-room apartment. Where? Amsterdam? Osaka? Hong Kong? Are you Austrian? Belgian? Swiss? A college kid? Do you ever have a girl over in your little nest?
Do tell!!
Haha, that has to be one of the most interesting/funny comments I have received to date! Well, I guess you will just have to keep looking for clues;)
I can't import core data
thank you
You are welcome Nick!
Thank yoy for not using storyboards
dude, leave a donate button
what is core data ???plz explain what is core data.is it database for application ????
Jup, that is correct. It is basically a local database where you can store variables:)
how to connected application to database ???
Bro i have an issue .i made table view and add some tasks to second controller.its working but when i do not put any thing in textfield and add it to in table view .the empty row create ???what can i do help me???
check if the user has entered something, and then only add the item if there is something in the textfield - if textfield.text != ""
plz send me email i will send you swift file you check it plzzzzzz
This is the old way of using core data. If you're using Swift 3/iOS 10, there are new and much simpler ways.
Give an example please.
Show us the way!
Downvoted for lack of response and examples.
let object = NSManagedObject(entity: NSEntityDescription.entity(forEntityName: "Users", in: context)!, insertInto: context)
object.setValue("swift", forKey: "username")
object.setValue("swift123", forKey: "password")
context.insert(object)
Arslan Ali. How are you handling an error? I think you're doing it wrong. See here developer.apple.com/library/content/documentation/Cocoa/Conceptual/CoreData/CreatingObjects.html#//apple_ref/doc/uid/TP40001075-CH5-SW1
Thank you!
Thank you!
You're welcome;)