How to deal with patching

I’m working with an API that streams changes to models in real time, and the payload is a JSON object containing only the fields that changed.

What is the suggested way to patch those changes in? The only thing I could think of is:

CREATE TABLE User (
  id TEXT PRIMARY KEY NOT NULL DEFAULT "0",
  token TEXT NOT NULL DEFAULT "",
  deviceId TEXT NOT NULL DEFAULT "",
  birthday TEXT AS LocalDate
);

updateId:
UPDATE CurrentUser SET id = :id;

updateToken:
UPDATE CurrentUser SET token = :token;

updateDeviceId:
UPDATE CurrentUser SET deviceId = :deviceId;

updateBirthday:
UPDATE PersistedCurrentUser SET birthday = :birthday;

fun updateUser(json: JsonObject) {
  if(json.contains("id")) query.updateId(json.get("id").asString)
  if(json.contains("token")) query.updateToken(json.get("token").asString)
  if(json.contains("deviceId")) query.updateDeviceId(json.get("deviceId").asString)
  if(json.contains("birthday")) query.updateBirthday(json.get("birthday").asLocalDate)
}

I don’t think a function can be generated that only updates explicitly defined columns (what would the default argument be, since null can’t be used; what if you want to set the column to null).

[eygraber]

It’s a bit verbose, but I’ve gotten used to it by now. I’ve really been appreciating the simplicity of SqlDelight, and I’m kind of happy that this isn’t being done.

[AlecStrong]

ayyy happy to hear that