我已经将新的数组属性添加到RLMObject和
public class Student: RLMObject { dynamic var id = 0 dynamic var name = "" dynamic var resultList = RLMArray(objectClassName:Result.className()) } public class Result: RLMObject { }
错误日志:
Migration is required for object type ‘Student’ due to the following
errors:
– Property ‘resultList’ has been added to latest object model.
TRY失败:
let configuration:RLMRealmConfiguration = RLMRealmConfiguration.defaultConfiguration() migration.enumerateObjects(Student.className()) { oldObject,newObject in newObject!["resultList"] = RLMArray(objectClassName: Result.className()) }
编辑:
let configuration:RLMRealmConfiguration = RLMRealmConfiguration.defaultConfiguration() print("Realm db current version: \(configuration.schemaVersion)") configuration.schemaVersion = 1 configuration.migrationBlock = {(migration:RLMMigration,oldSchemaVersion: UInt64) in print("Realm db migration start") if oldSchemaVersion < 1 { print("Schema version: 1 - Rename fields") migration.enumerateObjects(Student.className()) { oldObject,newObject in newObject!["creationDate"] = oldObject!["createdAt"] newObject!["modifiedDate"] = oldObject!["updatedAt"] } } print("Realm db migration finish") } RLMRealmConfiguration.setDefaultConfiguration(configuration) let realm = RLMRealm.defaultRealm()
解:
将您的版本更新为1
configuration.schemaVersion += 1
您必须增加schemaVersion并在RLMRealmConfiguration上提供migrationBlock.在那里你可以迁移表.但是你不需要在你的具体情况下.可以自动处理属性的添加.你还需要一个空块.
原文链接:https://www.f2er.com/swift/319930.htmllet config = RLMRealmConfiguration.defaultConfiguration() config.schemaVersion = 1 config.migrationBlock = { (migration,oldSchemaVersion) in // nothing to do } RLMRealmConfiguration.setDefaultConfiguration(config)