在Swift Firebase查询中排除数据和查询部分数据的最好方法是什么？

问题描述

我正在从Firebase查询用户，并想知道查询所有用户除了当前 ref.authData.uid 的最佳方法。在解析它的阅读像这样......

I am querying users from Firebase and would like to know the best method to query all users excluding the current ref.authData.uid . In parse its read like this......

query?.whereKey("username", notEqualTo: PFUser.currentUser()!.username!)
query?.whereKey("username", containsString: self.searchTXTFLD.text)

此外，是否有类似于Parse的containsString的任何Firebase查询类型？

Also, is there any Firebase query type similar to Parse's containsString?

推荐答案

仅检索Firebase中不符合特定条件的项目。您必须检索所有项目，并排除客户端的违规。另请参阅

There is no way to retrieve only items from Firebase that don't match a certain condition. You'll have to retrieve all items and exclude the offending ones client-side. Also see is it possible query data that are not equal to the specified condition?

对于Firebase查询，也没有 运算符。这已经被覆盖了很多次，例如在这个问题：

There is also no contains operator for Firebase queries. This has been covered many times before, such as in this question: Firebase query - Find item with child that contains string

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