请求结果结构firebasedatabase Swift [英] Request result structure firebasedatabase Swift
问题描述
为了像我在Java中一样迅速地从快照中检索自定义类的值，我使用Firebasedecoder.工作正常，但我需要以下结构
Looking to retrieve value of custom class from a snap in swift like i do in java , i use Firebasedecoder . Works fine but i need the following structure
{
username = uiii;
email = test@rom.com
..}
如果我发出诸如 .queryOrdered(ByCHild:email).queryEqual("uiii")之类的有序请求，我将获得前一个节点的请求:
If i make ordered requests like .queryOrdered(ByCHild:email).queryEqual("uiii"), i get the resquest with a previous node :
{
"hjhj"= {
username = uiii;
email = test@rom.com
..} }
寻找一种方法来删除不必要的值或具有正确的快照结构.
Looking for a way to either remove the uneccessary values or to have the correct snap structure.
推荐答案
简而言之，如果您具有相同级别的额外数据，并且导致 decodeFirebase 崩溃，您仍然可以使用它:
In short, if you have extra data at the same level and that makes decodeFirebase crash, you still can use it:
let value = snapshot.value
let modifiedValue:NSMutableDictionary = (value as AnyObject).mutableCopy() as! MutableDictionary
然后您可以通过以下键删除元素: modifiedValue.removeObject(forKey:test)然后应用解码.
You then can remove elements by key: modifiedValue.removeObject(forKey: test)
and then apply decode.
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