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In order to store grades, lectures, etc. persistent on the device. Necessary to load the data if no internet connection is possible..
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TODO
- Transformer
- Reference semantics type of Matrix2x2
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https://fanthus.github.io/2022/11/25/coredata%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0-4/
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CoreData and SwiftUI's NavigationLink appear not to play nicely together.
Two intermittently observed issues are described below, and I suspect that in both cases CoreData does not finish saving/c…
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https://fatbobman.com/posts/persistentHistoryTracking/
本文介绍了 CoreData 的 Persistent History Tracking 功能。详细讲解了从响应、提取、合并到清除的全过程处理方式,并提供了演示代码供读者使用。
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Sentry Issue: [JETPACK-IOS-D2](https://a8c.sentry.io/issues/3874541430/?referrer=github_integration)
```
NSInvalidArgumentException: Illegal attempt to establish a relationship 'menu' between objects…
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When building some packages with macports such as gstreamer1-plugins-bad for macos system and using xcode basic systems clang apple compiler or upgraded apple clang compiler sometimes extra CXX compil…
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I will try to save records with type:
Here is model:
import UIKit
import CoreData
class WindEntity: NSManagedObject {
@NSManaged var wind_id:String
@NSManaged var latitude:Double
…
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In CoreData entity (child of NSManagedObject) work little bit tricky. Doc says:
```
NSManagedObject uses dynamic class generation to support the Objective-C 2
properties feature (see “Objective-C 2 …
Antol updated
11 years ago
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When navigating on my core data objects, and showing a second level relationship entity. This always causes a crash.
`-[__NSCFString isTemporaryID]: unrecognized selector sent to instance` in `STDebu…