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Question

我需要为以下 CRMData 案例创建 .proto 文件 class。我对以下数据类型感到困惑，即嵌套地图和用户定义的 class (ShipToGroup)

case class CRMData(
       var customerShipToGroups : Map[String, Map[UUID, ShipToGroup]],
       var shipToGroups : Map[UUID, ShipToGroup],
       var shipToGroupLastUsed : UUID,
       var defaultShipToGroup : UUID
)

case class ShipToGroup(
    var customerUUID : String,
    var shipToGroupUUID : UUID,
    var name : String,
    var address : String,
    var companyName : String,
    var phoneNumber : Long,
    var city : String,
    var state : String,
    var zip : Int,
    var country : String,
    var landmark : String,
    var addressType : Int,
    var emailId : String,
    var addedAsBillingAddress : Boolean,
    var usedAsBillingAddress: Boolean,
    var isDefault : Boolean,
    var address2 : String)

Answer 1

您将遇到的最大问题是 guid（我假设 UUID 是什么）不是 .proto 中的原始类型，而 map<,> 仅在 .proto 中适用于字符串和整数类型。我假设您很乐意使用 string 作为最接近的匹配项（因为它适用于地图）。

你不能做嵌套地图，但你可以有一个地图，其中每个元素都是有地图的东西。

结合这两个注意事项，您可以执行以下操作：

syntax = "proto3";
message CRMData {
    map<string, NeedAGoodName> customerShipToGroups = 1;
    map<string, ShipToGroup> shipToGroups = 2;
    string shipToGroupLastUsed = 3;
    string defaultShipToGroup = 4;
}
message NeedAGoodName {
    map<string, ShipToGroup> items = 1;
}
message ShipToGroup {
    string customerUUID = 1;
    string shipToGroupUUID = 2;
    // ...
    string address2 = 17;
}

注意：可能看起来就像我一直在使用string，但这只是因为具体的例子； .proto supports more primitives than that - I would expect to see some bool and uint32 in your final version. Maybe some fixed64 for the phone number, although a string might be more common for that. You might also want an enum 用于 addressType.

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