Question

我正在使用CoreStore的{{1}} CoreData包装器

Swift 5

使用获取所有数据。

import CoreStore

@objc(Post)
public class Post: NSManagedObject {

}

extension Post {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<Post> {
        return NSFetchRequest<Post>(entityName: "Post")
    }

    @NSManaged public var detail: String?
    @NSManaged public var sync: Server?
    @NSManaged public var time: Time?

}

extension Post {
    static var allPosts: [Post] {
        var posts :  [Post] = []
        do {
            posts = try CoreStore.fetchAll(From<Post>().tweak({ $0.includesPendingChanges = false }))
        } catch {
            print(error)
        }
        return posts
    }
}

遇到错误。

⚠️[CoreStore：错误]来自.swift：155 applyToFetchRequest（_：context：applyAffectedStores :)↪︎尝试执行执行提取但找不到该实体的任何持久性存储（CoreStore.CoreStoreError）.persistentStoreNotFound（ .errorDomain =“ com.corestore.error”; .errorCode = 8; .entity =发布；）

Answer 1

解决使用将数据提取到主线程中的问题。

DispatchQueue.main.async { 
   let posts = Post.allPosts 
}

Swift5 CoreStore CoreStore.fetchAll（）引发错误

1 个答案: