Can I use one Factory to bind viewmodel / repository calls with kodein

Question

In this Factory I need to fetch my data from an api using Retrofit and store the cache with room, my Repository rules this app! I have repository suspended functions that take care of getting my data and some that save/update data getting and saveing/updating require different values to function and I do not know (yet) how to configure it in Kodein I lack the experience to solve this and there is nothing I found in Stackoverflow to assist me.

I have tried to add both the variables ID:String and the edited entity (CampaignEntry) to the Definition, it complies but crash on running with

No binding found for bind<CampaignEditViewModelFactory>() with ? { String -> ? }

My main Application the bind() is crashing the Application

class MarketingApplication : Application(), KodeinAware {
    override val kodein = Kodein.lazy {
        import(androidXModule(this@MarketingApplication))
...
bind() from factory { id: String, campaignEntry: CampaignEntry -> 
            CampaignEditViewModelFactory(id, campaignEntry, instance()) }
...

My ViewModel - having to pass the variables id and campaignEntry that is consumed by different calls in one ViewModel might be the issue - but I cannot figure out the correct solution.

class CampaignEditViewModel(
    private val id: String,
    private val campaignEntry: CampaignEntry,
    private val marketingRepository: MarketingRepository
) : ViewModel() {
    val campaignToSave by lazyDeferred { marketingRepository.updateCampaign(campaignEntry) }
    val campaignToEdit by lazyDeferred { marketingRepository.getCampaignById(id) }
}

my lazyDeferred for clarity

fun <T> lazyDeferred(block: suspend CoroutineScope.() -> T): Lazy<Deferred<T>> {
    return lazy {
        GlobalScope.async(start = CoroutineStart.LAZY) {
            block.invoke(this)
        }
    }
}

The Repository snap

interface MarketingRepository {
...
    suspend fun getCampaignById(campaignId: String): LiveData<CampaignEntry>
    suspend fun updateCampaign(campaignEntry: CampaignEntry): LiveData<CampaignEntry>
...

I call the Viewmodel from my fragment like so

class CampaignEditFragment : ScopedFragment(), KodeinAware {
    override val kodein by closestKodein()
    private val viewModelFactoryInstanceFactory: ((String) -> CampaignEditViewModelFactory) by factory()
...
private fun bindUI() = launch {
        val campaignVM = campaignEditViewModel.campaignToEdit.await()
...
    btn_edit_save.setOnClickListener {it: View
                saveCampaign(it)
...
private fun saveCampaign(it: View) = launch {
        campaignEditViewModel.campaignToSave.await()
    }

And then lastly the ScopedFragment

abstract class ScopedFragment : Fragment(), CoroutineScope {
    private lateinit var job: Job

    override val coroutineContext: CoroutineContext
        get() = job + Dispatchers.Main

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        job = Job()
    }

    override fun onDestroy() {
        super.onDestroy()
        job.cancel()
    }
}

If you need any more code - please ask

Answer 1

Since you are binding with 2 arguments, you need to use factory2:

private val viewModelFactoryInstanceFactory: ((String, campaignEntry) -> CampaignEditViewModelFactory) by factory2()