migrateFromObjcSDK?

claesjacobsson · August 20, 2021, 2:19pm

Hi!

Can someone explain a bit more what migrateFromObjcSDK does when initializing ParseSwift? Are there any minimum ObjC SDK version needed to migrate from?

Kind regards,
Claes

cbaker6 · August 20, 2021, 10:57pm

The documentation states:

If your app previously used the iOS Objective-C SDK, setting this value to true will attempt to migrate relevant data stored in the Keychain to ParseSwift. Defaults to false.

The “relevant data” is the client “Obj-c SDK installationId” from the Keychain. You can see how it does that here:

github.com

parse-community/Parse-Swift/blob/38caf2e01c2adaf458825ff341d86979ff6b7243/Sources/ParseSwift/Parse.swift#L163-L175

    
      
          if migrateFromObjcSDK {
              if let identifier = Bundle.main.bundleIdentifier {
                  let objcParseKeychain = KeychainStore(service: "\(identifier).com.parse.sdk")
                  guard let installationId: String = objcParseKeychain.object(forKey: "installationId"),
                        BaseParseInstallation.current?.installationId != installationId else {
                      return
                  }
                  var updatedInstallation = BaseParseInstallation.current
                  updatedInstallation?.installationId = installationId
                  BaseParseInstallation.currentInstallationContainer.installationId = installationId
                  BaseParseInstallation.currentInstallationContainer.currentInstallation = updatedInstallation
                  BaseParseInstallation.saveCurrentContainerToKeychain()
              }

I don’t believe the installation in Keychain has changed much in the Obj-c SDK, but you can look through the Installation files on Github to be sure.