PFObject无法转换为自定义子类 [英] PFObject unable to be cast to custom subclass
问题描述
此代码在最近更新swift编译器更新之前运行正常。我已经纠正了所有明显的错误,但由于某种原因,当我运行应用程序现在它崩溃在 for循环
当尝试 [AnyObject ]
This code was working fine before the recent update to the swift compiler update. I have corrected all the obvious errors, but for some reason when I run the app now it crashes in the for in loop
when trying to cast [AnyObject]
to my custom Memory
class.
日志和错误显示如下:
The log and error shows as follows:
Has connectivity
Successfully retrieved 8 memories.
current memory: <Memories: 0x170120960, objectId: AO3EvPFob4, localId: (null)> {
ACL = "<PFACL: 0x174047e30>";
Date = "3915-04-08 05:00:00 +0000";
Guests = 4;
Title = test4;
}
Could not cast value of type 'PFObject' (0x100130bc0) to 'MemoryVault.Memory' (0x10012fa00).
所以我知道我从Parse检索8个正确的记忆,
So I know I'm retrieving 8 correct memories from Parse, and the current memory is correct...it just wont cast it.
代码:
if (NetworkValidator.hasConnectivity()){ // Has internet connectivity
println("Has connectivity")
Memory.memoryQuery().findObjectsInBackgroundWithBlock{
(objects: [AnyObject]?, error: NSError?) -> Void in
if error == nil {
// The find succeeded.
println("Successfully retrieved \(objects!.count) memories.")
Memory.unpinAllInBackground(self.memories, block: {
(success: Bool, error: NSError?) -> Void in
// Clear current list
self.memories = [Memory]()
// Do something with the found objects
for memory in objects! {
println("current memory: \(memory)")
let currentMemory: Memory = memory as! Memory
// Save to localDataStore
currentMemory.pinInBackground()
println("\(currentMemory.memoryTitle) from Parse")
// Append to current
self.memories.append(currentMemory)
}
})
// Notify tableView to reload data
self.memoriesTableView.reloadData()
} else {
// Log details of the failure
println("Error: \(error!) \(error!.userInfo)")
}
}
}
推荐答案
让我忙了几个小时 - 解析文档提到:
this one kept me busy some hours - Parse-Documentation mentions:
PFObject的强类型子类必须符合PFSubclassing协议, parse setApplicationId:clientKey:]。
Strongly-typed subclasses of PFObject must conform to the PFSubclassing protocol and must call before [Parse setApplicationId:clientKey:] is called."
通过调用 MyParseClass.registerSubclass > AppDelegate 我的问题已解决!
By calling MyParseClass.registerSubclass() in AppDelegate I got my issues fixed!
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