BFStuckPointKit/BFStuckPointKit/Classes/Model/BFCoreDataModel.swift

//
//  BFCoreDataModel.swift
//  BFFramework
//
//  Created by 胡志强 on 2021/11/12.
//

import Foundation
import CoreData

let persistentContext = BFDataPersistentManager.shared.persistentContainer.viewContext
open class BFCoreDataModel: NSObject, NSFetchRequestResult {
    
    
    public class func createModel(modelName:String) -> AnyObject {
        return NSEntityDescription.insertNewObject(forEntityName: modelName, into: persistentContext)
    }
    
    public func save(){
        do {
            try persistentContext.save()
        } catch {
            fatalError("不能保存：\(error)")
        }
    }
    
    public class func getList(fetchRequest:NSFetchRequest<NSFetchRequestResult>) -> [NSFetchRequestResult]?{
        do {
            let fetchedObjects = try persistentContext.fetch(fetchRequest)
            return fetchedObjects as? [NSFetchRequestResult]
        }
        catch {
            fatalError("不能保存：\(error)")
        }
    }
    
    
    public func deleteMode(fetchRequest:NSFetchRequest<NSFetchRequestResult>){
        do{
            let fetchedObjects = try persistentContext.fetch(fetchRequest)
            for info in fetchedObjects{
                persistentContext.delete(info as! NSManagedObject)
            }
            try! persistentContext.save()
        }catch {
            fatalError("不能保存：\(error)")
        }
    }
}