mycode/myApp/Expiranner/IOS/Models.swift

import Foundation
import SwiftData

@Model
final class Store {
    var name: String
    var createdAt: Date

    @Relationship(deleteRule: .cascade, inverse: \ProductRecord.store)
    var records: [ProductRecord] = []

    init(name: String) {
        self.name = name
        self.createdAt = .now
    }
}

@Model
final class ProductRecord {
    /// 유통기한 날짜 (자정으로 정규화)
    var expiryDate: Date
    var createdAt: Date

    @Attribute(.externalStorage)
    var imageData: Data
    var thumbnailData: Data

    var store: Store?

    init(expiryDate: Date, imageData: Data, thumbnailData: Data, store: Store?) {
        self.expiryDate = expiryDate
        self.createdAt = .now
        self.imageData = imageData
        self.thumbnailData = thumbnailData
        self.store = store
    }
}