Question

我有一个应用程序，我试图加载用户及其所有相关数据。在关系中，我将BodyTracking作为一种关系。另一个是DiaryWeek，而DiaryDays则是本周的DiaryDays。我成功地完成了所有的BodyTracking，但是当我为DiaryWeeks尝试相同的时候，我得到一个错误，说我必须等待。我猜想发生的事情是BodyTracking，它是用'findObjectsInBackgroundWithBlock＆＃39;当DiaryWeek请求被调用时，它仍在继续。有没有办法一次性提取所有数据？

        // Body Tracking
    bodyEntries.removeAll()
    let trackingQuery = PFQuery(className: "BodyTracking")
    trackingQuery.whereKey("user", equalTo: member)
    trackingQuery.orderByDescending("trackingDate")
    trackingQuery.findObjectsInBackgroundWithBlock {
        (objects: [PFObject]?, error: NSError?) -> Void in

        if error == nil {
            print("Successfully retrieved \(objects!.count) body entries.")

            if let objects = objects! as? [PFObject] {
                for object in objects {
                    let bodyEntry = BodyTracking(object: object)
                    self.bodyEntries.append(bodyEntry)
                }
                self.bodyTrackingTableView.reloadData()
            }
        } else {
            // Log details of the failure
            print("Error: \(error!) \(error!.userInfo)")
        }
    }

    // Food Diary
    foodWeeks.removeAll()
    let diaryQuery = PFQuery(className: "FoodDiaryWeek")
    diaryQuery.whereKey("user", equalTo: member)
    diaryQuery.orderByDescending("weekStartDate")
    trackingQuery.findObjectsInBackgroundWithBlock {
        (objects: [PFObject]?, error: NSError?) -> Void in

        if error == nil {
            print("Successfully retrieved \(objects!.count) food weeks")

            if let objects = objects! as? [PFObject] {
                for object in objects {
                    let foodWeek = FoodDiaryWeek(object: object)
                    self.foodWeeks.append(foodWeek)
                }
            }
        } else {
            // Log details of the failure
            print("Error: \(error!) \(error!.userInfo)")
        }
    }

错误消息：此查询具有出色的网络连接。你必须等到它完成。

Answer 1

看起来你不小心执行了trackingQuery两次。永远不会执行diaryQuery。可能是复制/粘贴错误（？）

   // Food Diary
foodWeeks.removeAll()
let diaryQuery = PFQuery(className: "FoodDiaryWeek")
diaryQuery.whereKey("user", equalTo: member)
diaryQuery.orderByDescending("weekStartDate")
**trackingQuery**.findObjectsInBackgroundWithBlock {

用diaryQuery替换trackingQuery

Parse.com如何获取所有用户的相关数据

1 个答案: