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.
let config = RLMRealmConfiguration.defaultConfiguration()
config.schemaVersion = 1
config.migrationBlock = { (migration,oldSchemaVersion) in
// nothing to do
}
RLMRealmConfiguration.setDefaultConfiguration(config)
