我目前正在努力访问存储在路径中的其他数据,更具体地说是来自子文件夹的数据。我的设置如下:
userID{
username:Andreas,
gender:Male,
age:18,
footballTeams{
Team1{
name:My team 1
matchesPlayed:3
}
}
}
所以我目前正在运行此代码以获取用户名,性别和年龄:
ref.child("Users").observeEventType(.ChildAdded, withBlock: { (snapshot1:FIRDataSnapshot) in
//code goes here..
var username = String(snapshot1.value!["username"] as! String)
var gender = String(snapshot1.value!["gender"] as! String)
var age = Int(snapshot1.value!["age"] as! Int)
})
但是,我想抓住存储在footballTeams路径中的所有球队名称,命令如'Team1,Team2,Team3'等。所以我偶然发现了“snapshot1.childSnapshotForPath("footballTeams/Team1").value!["name"]
”。但是,只要我知道每个团队名称路径的确切名称,这就行了,但这会存储为自动ID。关于我如何处理这个问题的任何想法?
提前致谢。
答案 0 :(得分:2)
当您选择使用childSnapshotForPath
时,您的选择正确。您只需获取/footballTeams
分支快照并迭代它以获取每个孩子。
ref.child("Users").observeEventType(.ChildAdded, withBlock: { (snapshot1:FIRDataSnapshot) in
var username = String(snapshot1.value!["username"] as! String)
var gender = String(snapshot1.value!["gender"] as! String)
var age = Int(snapshot1.value!["age"] as! Int)
if let footballTeamsSnapshot = snapshot1.childSnapshotForPath("footballTeams") as? FIRDataSnapshot {
for child in footballTeamsSnapshot.children.allObjects as [FDataSnapshot] {
print(child.value)
}
}
})