koin将CoroutineScope传递为RoomDatabaseCallback的依赖项

Question

我有一个需要CoroutineScope进行初始化的数据库。

@Database(entities = [Word::class], version = 1)
 abstract class WordRoomDatabase : RoomDatabase() {
abstract fun wordDao(): WordDao

 companion object {
@Volatile
private var INSTANCE: WordRoomDatabase? = null

fun getDatabase(
        context: Context,
        scope: CoroutineScope//this dependecy!!!
): WordRoomDatabase {
    return INSTANCE ?: synchronized(this) {
        val instance = Room.databaseBuilder(
                context.applicationContext,
                WordRoomDatabase::class.java,
                "word_database"
        )
                .addCallback(WordDatabaseCallback(scope))
                .build()
        INSTANCE = instance
        instance
    }
}

private class WordDatabaseCallback(
        private val scope: CoroutineScope
) : RoomDatabase.Callback() {
    override fun onOpen(db: SupportSQLiteDatabase) {
        super.onOpen(db)
        INSTANCE?.let { database ->
            scope.launch(Dispatchers.IO) {
                populateDatabase(database.wordDao())
            }
        }
    }
}
  suspend fun populateDatabase(wordDao: WordDao) {
    wordDao.deleteAll()
  }
}
} 

如何将我的ViewModel在模块中作为CoroutineScope传递？

val appModule = module {
  single <Dao>{ WordRoomDatabase.getInstance(get(),**dependency here
  Mymodel**).wordDao()}
  viewModel { MyModel(get(),get()) }
}

来自https://github.com/googlecodelabs/android-room-with-a-view/blob/kotlin/app/src/main/java/com/example/android/roomwordssample/WordRoomDatabase.kt的示例，他们在ViewModel但我不能这样做。 我必须初始化throw Koin Dependency Injection，我花了两天时间进行尝试和实验，但没有成功。

Answer 1

您还需要在CoroutineScope中声明appModule

val appModule = module {
  single <Dao>{ WordRoomDatabase.getInstance(get(),**dependency here
  Mymodel**).wordDao()}
  viewModel { MyModel(get(),get()) }

  factory { SupervisiorJob() }
  factory { CoroutineScope(Dispatchers.IO + get<SupervisorJob>()) }

}