是否可以具有Firestore查询的wherefields或whereFields? [英] Is it possible to have either or whereFields for Firestore query?

问题描述

我想查询

db.collection("Bookings")
    .whereField("servicer", isEqualTo: userID || "customer", isEqualTo: userID)

与其读取两个不同的内容，不如读取一个，它获取 servicer == userID 和 customer == userID 的所有文档.

Instead of having two different reads it will just have one, and it gets all the documents that servicer == userID and customer == userID.

推荐答案

使用单个查询是不可能的-没有逻辑或操作可用于文档中的多个字段.您将需要有两个查询，一个查询用于"servicer"，另一个查询用于"customer"，然后在客户端上合并这些查询的结果.

This is not possible with a single query - there is no logical OR operation that works across multiple fields in a document. You will need to have two queries, one for "servicer", and another for "customer", then merge the results of those queries on the client.

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