- 两个实体
- 体操运动员是一对多,以满足
- 我想,当我保存新的满足,它就会被分配到一个满足每个体操运动员哪里然后他们可以得分的人得分为每个事件
也许我完全错误的,我的逻辑,但这里是我想要做的斯威夫特设置或更新资产
令请求= NSFetchRequest(的entityName:“体操运动员”)
do {
let entities = try AD.managedObjectContext.executeFetchRequest(request) as! [Gymnast]
for item in entities {
if let first = item.valueForKey("firstName"), last = item.valueForKey("lastName") {
print("Name: \(first) \(last)")
let myMeet = NSEntityDescription.insertNewObjectForEntityForName("Meet", inManagedObjectContext: AD.managedObjectContext) as! Meet
myMeet.meetName = "Winter Classic"
let myMeets = item.meets!.mutableCopy() as! NSMutableSet
myMeets.addObject(myMeet)
item.meets = myMeets.copy() as? NSSet
AD.saveContext()
}
}
} catch {
}
}
}
,该releationship应该多到很多。 – Willeke