How to use Core Data with @FetchRequest in SwiftUI | Continued Learning #14

[@redstonerepeater2476]

I love the "new"(from the Beginner course) edits! Honestly man, you are a life saver!

[@SwiftfulThinking]

Happy to help!

[@Hannappel2000]

I watched all your 77 beginners and now halfway through this . Great job, right speed of explaining. Thanks for that. I honestly would be lost without you as you are addressing the right topics in the right way. One thing I am really struggling with in my app is passing data around. Your courses are great for understanding, when it gets more complex though - do you have an advice how to optimize e.g. environment, the new observable class, bindings, etc. I am often not sure which is the best way of using what when. Any video on that topic would be great.

[@dugrut1325]

I'm back watching Continued Learning. You have the best show on the internet! The best part is, every time I watch, it's like the first time! hahaha

[@kavinda_dilshan_paramsoodi]

I intensionally missed this tutorial year ago, and now I regret doing that. I did it because I was afraid of Core Data even without knowing what it was. But now it just looks simple and easy to understand. Thanks Nick.

[@ZefsAl]

The best channel, there is nothing on the Internet about this topic!

[@IvanObodianskyi]

Great explanation, thank you! It's already 2023 and your tutorial still top, good job Nick👍

[@umarmohammad6841]

hands down the most useful swiftui videos on youtube

[@SwiftfulThinking]

Wow, thanks Umar! :)

[@rungxanh2901]

Thank you Nick for the preface at 0:55. It clears it up that I don't need to have both an @FetchRequest variable and Core Data view model at the same time. Very neat 🤝

[@arturolatorre371]

By far the best SwiftUI channel out there! You deserve a lot more subscribers!

[@mmmaria18]

I really can't thank you enough, you are a savior!! Keep the awesome work!! :)

[@Stevesvideoshelf]

WooHoo!! Core Data! I've been looking forward to this one! Thanks Nick. Great video!

[@SwiftfulThinking]

You are cruising though these playlists 😂🥳🥲

[@mig12394]

Thanks. It is the first time that I see somebody who mark core data in the project and use it, the others remake everything

[@SwiftfulThinking]

Yea, it's great that Apple gives us some template code but it can be hard to understand. I'm happy this helped!

[@dugrut1325]

Thanks for your great training: My first goal is to make a 'Simple' journal app. Tag each entry with the current date:time. Save the entries automatically into CoreData. Recall entries in ScrollView based on Date. Then later automatically tag each entry with current weather:temperature; my current location during entry, then edit entries, allow for dictation, eg. as my knowledge increases.

[@natgenesis5038]

You just make core data easy to me ;thanks so much man

[@erenunal1512]

22:05 I cant append new item (orange). Every line of codes are same but it doesnt work on canvas for me. Actually it works on simulator. Does anyone know why?

[@ashleym6157]

Having the same problem

[@erenunal1512]

@ ıts a bug on canvas

[@simonbogh]

Probably the best video tutorial/walkthrough I have watched, really nice to see even the standard core data code in the project really well explained, thank you. Question: Do you have a video or could you make an example of using multiple entities and also showcasing one-to-one, one-to-many etc. relations, how it works and how it can be used? /cheers

[@simonbogh]

Well, I kept watching your videos and it seems like one on core data relationships is coming 😂 thanks mate

[@TechRagh]

Thanks for your videos! Keep 'em coming👍🏻

[@SwiftfulThinking]

Thanks Tech Rag, will do! :)

[@nevemra5]

Very useful information, thanks!

[@bbulliard]

Such an excellent video! Well done! Thank you

[@SwiftfulThinking]

Thanks again Bob!!

[@rishabhbhatia1847]

I tried SwiftData today and its just so much more simpler and intuitive. Do you plan to make videos on that?

[@SwiftfulThinking]

Yes, I will make SwiftData videos to replace these videos soon.

[@PaidAchK]

Im having a lot of trouble following along, there's been an update and trying to do exactly as you do the view isn't updating with the newFruit to the list. I've searched and I can't seem to find what I am doing wrong

[@yrac2409]

Hello! love your tutorials, it's so easy to understand compared to many others I have watched. I've already started with firebase for the backend and I was wondering if you've ever thought of doing a tutorial on that? Thanks a lot!

[@SwiftfulThinking]

Hi Amy! Yes, I am planning on doing a Firebase course soon. I just haven't gotten to it yet!

[@yrac2409]

@@SwiftfulThinking Awesome! Love your videos!

[@joywu1]

Hi Nick, I found there is one miss function you didn't introduce in coreData: "move", I can add/ delete/update item, but when I want to do .onMove function, I found when I move the ForEach .onMove it will back to the original order in the entity. even I add saveData() after func move, it more badly afterI click Done it immediately back to the origin order. Can you help to have some advise, or core data cannot use .onMove function?

[@natgenesis5038]

Thanks so much bro I learn swift in project ,swiftui ,filesytem ,GCD ,core data from you ,…..

[@rasheed1andrew]

can you always add core data to an already existing project later on?

[@pawelpow]

Yes!

[@Nunny25]

Thanks,.. I was so afraid to start with CoreData, because it looks so complicated for me. Believe I will understand it with You finally.

[@SwiftfulThinking]

Yes, it can definitely be challenging. Let me know if you have any questions Charlie :)

[@Nunny25]

@@SwiftfulThinking Hi, I have questions :-) If You have model data (array with inserted data), can You some simply way insert it to entity in one step (structure is the same), or You have to pass array in cycle and insert each item separately? How You can delete all items in entity? Thank You

[@Nunny25]

@@SwiftfulThinking And other very important thing is to get number of items in entity, ... is empty or not.?

[@Mahadev-x7u]

Thank you for sharing your knowledge...

[@SwiftfulThinking]

Glad you're enjoying the videos :)

[@nicoballmann3400]

Hey there! Is there a possibility to put the tapGesture on the entire row?

[@SwiftfulThinking]

Hey Nico, yea you should be able to add a TapGesture to any View in Swift (you can't put it on the ForEach but you can put it on a view inside the ForEach closure).

[@relaxingvibes5560]

Everything works when I use a List to render out the words...but what if I want to create card components? I tried and I only get the last word, not all the words from Core Data

[@andresraigoza2082]

Thank you so much!!! 🙂 I wanted to ask you, how to decide when to use core data or remote data?

[@SwiftfulThinking]

This is a big question but I'll try to simplify... If there is data that (1) other users need access to, or (2) you want to be saved for the current user to use across multiple devices, then you need to store it in a remote location so that other devices can access it. If it's data only for the current user on the current device, then you can save it locally. There are several options for saving locally, most common is (1) UserDefaults for small pieces of data, (2) FileManager for large data blobs, such as Images/Videos/Audio, and then (3) CoreData when you have a larger data sets that you want to save, such as data Models in your app.

[@andresraigoza2082]

@@SwiftfulThinking Thank you for your quick reply. Very clear answer. You’re great 👍🏻

[@aashutoshrimal]

I am getting the error "executeFetchRequest:error: A fetch request must have an entity.", although I had implemented the same as your code.

[@Jump_Jay]

Question: I can NEVER pick color literal! Is the a setting you have to adjust in the menus to get that to work? As always, love the great content/education!

[@santiagocotanos1735]

I dont know why at FecthedResults the editor says that item is not in the scope

[@SwiftfulThinking]

Did you figure it out? You might have to restart Xcode. It happens sometimes..

[@rishabhbhatia1847]

This is giving some problems in canvas as well as simulator. Only if I build it on actual iPhone it works. The canvas never shows added item in list and also crashes when I edit the list. The simulator also never saves an item. As soon as I click on add item it gives error in Xcode. I have latest Mac OS and XCode updated. Only if I build on actual device it all works perfectly.

[@thisrabbit3673]

A huge thanks for this series, it helps a lot! While in my trying, I wonder what are the best practices for making core data works with the preview in SwiftUI, in other words, how to preview my customized view component with different (mocked) input data (for example, a blank state, and a state with some data) if this view directly pull data from the core data database using the @FetchRequest?

[@Srijonlucky0111]

Awesome work! Could you please help me, if I have three Entities called Country, State, and Districts. I would like to filter Districts entity depending on selection of State. How it should be done?

[@ushadesai6306]

Following Compiler error appear in the CoreData template app: 1. Generic parameter 'Content' could not be inferred' (in the ***App.swift) 2. Cannot find 'FruitEntity' in scope (in Persistence.swift and ContentView.swift) I have followed the same steps as in the tutorial.

[@bgriffin5447]

Your cpu fan is 🐐

[@SwiftfulThinking]

It's not good 😭

[@aaronefrainchavez5638]

I got a really complicated problem with my App lol. I got 2 diferent Entities but the second one its not recognized by Xcode when I do FetchRequest by time. Help!!!!!!!!!!! I'm just learning with YT so ain't got a Teacher to teach to me.

[@vamsi3877]

Thanks 👍

[@SwiftfulThinking]

No problem 👍 You are always watching my latest vids! Thanks!

[@angelrangel404]

Hey men, I want to be like you when I're big!

[@东皇太一-s4g]

他是真的想教会我，我哭死。 He really wants to teach me, I cry to death。 ty

[@manzoorahmaddeveloper8111]

[@Денис-ж3ф5р]

Core Data is the most difficult topic I've ever happened to deal with.

[@SwiftfulThinking]

Yea it can be challenging haha. I hope this video helped.

[@Денис-ж3ф5р]

@@SwiftfulThinking yeah it helps a lot.

[@paulmax9155]

guard let index = offsets.first else { return } - (...index is not optional) This is extra code, completely useless((

[@lamsungfai]

Nick

[@SwiftfulThinking]

Hammer Lam