I'm using Github's search API in Android App through retrofit
https://api.github.com/search/users?q=user
The API Service file states as :
interface ApiService {
#GET("search/users")
suspend fun getUsers(#Query ("q") searchQuery: String)
: UserResponse
}
Meanwhile, the data class is :
data class UserResponse(
val total_count: Int,
val incomplete_results: Boolean,
val items: MutableList<Item>
){
data class Item( val avatar_url: String,
val events_url: String,
val followers_url: String,
val following_url: String,
val gists_url: String,
val gravatar_id: String,
val html_url: String,
val id: Int,
val login: String,
val node_id: String,
val organizations_url: String,
val received_events_url: String,
val repos_url: String,
val site_admin: Boolean,
val starred_url: String,
val subscriptions_url: String,
val type: String,
val url: String)
}
But, I'm having an error
FATAL EXCEPTION: DefaultDispatcher-worker-2
Process: com.example.github, PID: 3542
retrofit2.HttpException: HTTP 422
I tried change #Query param but it's not working
data class Class1 (
#SerializedName("total_count")
var totalCount: Int? = null,
#SerializedName("incomplete_results")
var incompleteResults : Boolean?= null,
#SerializedName("items") var items: ArrayList<Items> = arrayListOf()
)
data class Items (
#SerializedName("login")
var login: String? = null,
#SerializedName("id")
var id: Int? = null,
#SerializedName("node_id")
var nodeId: String? = null,
#SerializedName("avatar_url")
var avatarUrl: String? = null,
#SerializedName("gravatar_id")
var gravatarId: String? = null,
#SerializedName("url")
var url: String? = null,
#SerializedName("html_url")
var htmlUrl: String? = null,
#SerializedName("followers_url")
var followersUrl : String? = null,
#SerializedName("following_url")
var followingUrl : String? = null,
#SerializedName("gists_url")
var gistsUrl : String? = null,
#SerializedName("starred_url")
var starredUrl: String? = null,
#SerializedName("subscriptions_url")
var subscriptionsUrl : String? = null,
#SerializedName("organizations_url")
var organizationsUrl : String? = null,
#SerializedName("repos_url")
var reposUrl: String? = null,
#SerializedName("events_url")
var eventsUrl : String? = null,
#SerializedName("received_events_url" )
var receivedEventsUrl : String? = null,
#SerializedName("type")
var type : String? = null,
#SerializedName("site_admin")
var siteAdmin : Boolean? = null,
#SerializedName("score")
var score: Int? = null
)
Related
I am trying to get a specific value from my JSON data. I could successfully call the entire json data,jsonOutput. But the thing is when I call a specific value in the jsonOutput, it shows me nullPointerError. I do not know why I lost the data when I call my data class. I marked the part I lost them with The problem occurs here. How can I get adminArea1?
I shared one data class as a sample. You can create the data classes with "Kotlin data class File from JSON".
I referred to many answers and examples but was hard to know the reason.
My code
class MainActivity : AppCompatActivity() {
private lateinit var binding: ActivityMainBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
binding.networkBtn.setOnClickListener(View.OnClickListener {
var thread = NetworkThread()
thread.start()
})
}
inner class NetworkThread : Thread() {
override fun run() {
var url =
URL("https://www.mapquestapi.com/geocoding/v1/reverse?key=LBK8QWxDPYHfmeYVlEP1IO3BVbWHyznB&" +
"location=Your_laptitue,Your_longitute&includeRoadMetadata=true&includeNearestIntersection=true")
var countryCodeBufferedReader =
BufferedReader(InputStreamReader(url.openConnection().getInputStream()))
var stringBuffer = StringBuffer()
do {
var string = countryCodeBufferedReader.readLine()
if (string != null) {
stringBuffer.append(string)
}
} while (string != null)
var jsonObject = JSONObject(stringBuffer.toString())
val gson: Gson = GsonBuilder().setPrettyPrinting().create()
val jsonOutput: String = gson.toJson(jsonObject)
//The problem occurs here
var countryData = gson.fromJson(jsonOutput, NameValuePairsXXXXX::class.java)
val jsonOutput2 = countryData.adminArea1
Log.d("jsonOutput", jsonOutput)
Log.d("jsonOutput2", jsonOutput2)
runOnUiThread {
binding.lapLonText.text = jsonOutput2
}
}
}
}
Data class
Use this class and use Response data class to parse json,
data class Response(
val options: Options? = null,
val results: List<ResultsItem?>? = null,
val info: Info? = null
)
data class Options(
val thumbMaps: Boolean? = null,
val maxResults: Int? = null,
val ignoreLatLngInput: Boolean? = null
)
data class LatLng(
val lng: Double? = null,
val lat: Double? = null
)
data class Info(
val statuscode: Int? = null,
val copyright: Copyright? = null,
val messages: List<Any?>? = null
)
data class ProvidedLocation(
val latLng: LatLng? = null
)
data class Copyright(
val imageAltText: String? = null,
val imageUrl: String? = null,
val text: String? = null
)
data class DisplayLatLng(
val lng: Double? = null,
val lat: Double? = null
)
data class LocationsItem(
val dragPoint: Boolean? = null,
val displayLatLng: DisplayLatLng? = null,
val adminArea4: String? = null,
val unknownInput: String? = null,
val adminArea5: String? = null,
val adminArea6: String? = null,
val postalCode: String? = null,
val adminArea1: String? = null,
val adminArea3: String? = null,
val sideOfStreet: String? = null,
val type: String? = null,
val adminArea6Type: String? = null,
val geocodeQualityCode: String? = null,
val adminArea4Type: String? = null,
val linkId: String? = null,
val roadMetadata: Any? = null,
val street: String? = null,
val nearestIntersection: Any? = null,
val adminArea5Type: String? = null,
val mapUrl: String? = null,
val geocodeQuality: String? = null,
val adminArea1Type: String? = null,
val adminArea3Type: String? = null,
val latLng: LatLng? = null
)
data class ResultsItem(
val locations: List<LocationsItem?>? = null,
val providedLocation: ProvidedLocation? = null
)
var countryData = gson.fromJson(jsonOutput, Reponse::class.java)
It was caused due to API communication. I solved my problem by putting okHttpClient. I added the code to help anybody having the same question.
val client = OkHttpClient()
val request = Request.Builder().url(url).build()
client.newCall(request).enqueue(object :Callback{
override fun onFailure(call: Call, e: IOException) {
Log.d("fail", "fail")
}
override fun onResponse(call: Call, response: okhttp3.Response) {
var body = response.body?.string()
Log.d("body", "$body")
val jsonObject2 : JSONObject = JSONObject(body.toString())
val jsonOutput2 = gson.fromJson(body, Response::class.java)
val test2 = jsonOutput2.results?.get(0)?.locations?.get(0)?.adminArea1.toString()
Log.d("test2", test2) }}
I'm using a Moshi adapter to get the object from a JSON string. But, I'm getting an error,
java.lang.IllegalArgumentException: Platform class java.lang.Class requires explicit JsonAdapter to be registered
All the data members of the UserProfile class are only String type then why it is asking to create an explicit JsonAdapter?
MoshiDataConverter
class MoshiDataConverter() {
fun <T> getObjectFromJson(typeOfObject: Class<T>, jsonString: String): T? {
val moshi = Moshi.Builder().build()
val jsonAdapter: JsonAdapter<T> = moshi.adapter<T>(
typeOfObject::class.java
)
return jsonAdapter.fromJson(jsonString)!!
}
}
getObject method
fun <T> getObject(#Keys key: String?, typeOfObject: Class<T>?): T? {
val value = getString(key, null) ?: return null
return MoshiDataConverter().getObjectFromJson(typeOfObject!!, value)
}
UserProfile.kt
#Parcelize
#JsonClass(generateAdapter = true)
data class UserProfile(
#get:Json(name = "p_contact")
val pContact: String? = null,
#get:Json(name = "profile_pic")
var profilePic: String? = null,
#get:Json(name = "lname")
val lname: String? = null,
#get:Json(name = "token")
var token: String? = null,
#get:Json(name = "fname")
val fname: String? = null,
#SerializedName("_id")
#get:Json(name = "_id")
var id: String? = null,
#get:Json(name = "email")
var email: String? = null,
#SerializedName("refresh_token")
#get:Json(name = "refresh_token")
var refreshToken: String? = null
) : Parcelable
Your typeOfObject parameter is already a class reference, so you don't need to call ::class.java on it before passing it to the Moshi adapter.
Try replacing
val jsonAdapter: JsonAdapter<T> = moshi.adapter<T>(
typeOfObject::class.java
)
with
val jsonAdapter: JsonAdapter<T> = moshi.adapter<T>(typeOfObject)
I am facing issue in get response in kotlin. My json response is:
{
"message":"Success",
"status":false,
"data":[
{
"id":"1",
"username":"doctor",
"phone":null,
"speciality":"General Physician",
"name":"Doctor",
"firstname":null,
"lastname":null,
"gender":"",
"age":null,
"dobirth":null,
"email":"doctor#live.com",
"country":"Pakistan",
"state":"Punjab",
"city":"Lahore",
"address":null,
"affiliation":"",
"degree":"MBBS",
"bio":null,
"password":"$2y$10$KF1zBxe07nPBW.0hFWiFfOjIur4cYYfP.LlQlujjcHq4WmQMLGWLK",
"remember_token":"UlekRgPJqWPx9AczdW2D7cyjiWkyU4mDpGYkR2QYovjsDCaVTt7adnQmSJQo",
"image":"1496739459-ariba.jpg",
"license_owner":"0",
"status":"0",
"switch_role":"1",
"invitation_code":"",
"created_at":"2018-10-01 07:55:47",
"updated_at":"2018-01-26 00:02:50",
"license_purchase_id":"0",
"profile_active":"0",
"pmdc":"",
"flag":"1"
},
{
"id":"2",
"username":"khawarshah",
"phone":null,
"speciality":"",
"name":"Syed Khawar",
"firstname":null,
"lastname":null,
"gender":"",
"age":null,
"dobirth":null,
"email":"jjshjasd#tech4lifeenterprises.com",
"country":"",
"state":"",
"city":"",
"address":null,
"affiliation":"",
"degree":"",
"bio":null,
"password":"$2y$10$3nG\/43tUdA2QKzinBPvA4.zqQHfxmR8sZ0LICQ3xg6LLr6mFYZq7q",
"remember_token":"teuzY7HKubHdQg9TXA3zgDJmszrNPm2vBg1226JmDPhk0APZuEafIUpNGKJ4",
"image":"",
"license_owner":"0",
"status":"1",
"switch_role":"1",
"invitation_code":"",
"created_at":"2019-04-19 07:08:10",
"updated_at":"2019-04-19 11:08:10",
"license_purchase_id":"0",
"profile_active":"0",
"pmdc":"",
"flag":"1"
}
]
}
ApiClient class and ApiFactory is
data class Users (
#Expose
#SerializedName("message")
val message: String,
#Expose
#SerializedName("status")
val status: String,
#Expose
#SerializedName("id")
val id: String,
#Expose
#SerializedName("username")
val username: String,
#Expose
#SerializedName("speciality")
val speciality: String,
#Expose
#SerializedName("firstname")
val firstname: String,
#Expose
#SerializedName("name")
val name: String,
#Expose
#SerializedName("lastname")
val lastname: String,
#Expose
#SerializedName("gender")
val gender: String,
#Expose
#SerializedName("age")
val age: String,
#Expose
#SerializedName("dobirth")
val dobirth: String,
#Expose
#SerializedName("email")
val email: String,
#Expose
#SerializedName("image")
val image: String,
#Expose
#SerializedName("switch_role")
val switch_role: String
)
And Main fragment is
class HomeFragment : Fragment() {
private lateinit var homeViewModel: HomeViewModel
lateinit var progerssProgressDialog: ProgressDialog
var dataList = ArrayList<Users>()
lateinit var recyclerView: RecyclerView
lateinit var adapter:ListAdapter
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
homeViewModel =
ViewModelProviders.of(this).get(HomeViewModel::class.java)
val root = inflater.inflate(R.layout.fragment_home, container, false)
val RecyclerView: RecyclerView = root.findViewById(R.id.recyclerView)
recyclerView = root.findViewById(R.id.recyclerView)
recyclerView.adapter= ListAdapter(dataList,requireContext())
recyclerView.layoutManager=LinearLayoutManager(requireContext(),LinearLayoutManager.VERTICAL,false)
progerssProgressDialog=ProgressDialog(requireContext())
progerssProgressDialog.setTitle("Loading")
progerssProgressDialog.setCancelable(false)
progerssProgressDialog.show()
getData()
return root
}
private fun getData() {
val call: Call<List<Users>> = ApiClient.getClient.getPhotos()
call.enqueue(object : Callback<List<Users>> {
override fun onResponse(call: Call<List<Users>>?, response: Response<List<Users>>?) {
progerssProgressDialog.dismiss()
dataList.addAll(response!!.body()!!)
recyclerView.adapter?.notifyDataSetChanged()
}
override fun onFailure(call: Call<List<Users>>, t: Throwable) {
progerssProgressDialog.dismiss()
}
})
}
}
but did not get response in recyclerview. what is the mistake?
Your data classes and JSON structure don't match.
Use JsonToKotlinClass plugin to create data class from json in Android Studio
Problem is with your data class "Users".. Check below data class for your reference:
data class Response(
#field:SerializedName("data")
val data: List<DataItem?>? = null,
#field:SerializedName("message")
val message: String? = null,
#field:SerializedName("status")
val status: Boolean? = null)
data class DataItem(
#field:SerializedName("country")
val country: String? = null,
#field:SerializedName("firstname")
val firstname: Any? = null,
#field:SerializedName("invitation_code")
val invitationCode: String? = null,
#field:SerializedName("flag")
val flag: String? = null,
#field:SerializedName("gender")
val gender: String? = null,
#field:SerializedName("city")
val city: String? = null,
#field:SerializedName("pmdc")
val pmdc: String? = null,
#field:SerializedName("bio")
val bio: Any? = null,
#field:SerializedName("created_at")
val createdAt: String? = null,
#field:SerializedName("switch_role")
val switchRole: String? = null,
#field:SerializedName("speciality")
val speciality: String? = null,
#field:SerializedName("password")
val password: String? = null,
#field:SerializedName("updated_at")
val updatedAt: String? = null,
#field:SerializedName("affiliation")
val affiliation: String? = null,
#field:SerializedName("license_owner")
val licenseOwner: String? = null,
#field:SerializedName("id")
val id: String? = null,
#field:SerializedName("state")
val state: String? = null,
#field:SerializedName("remember_token")
val rememberToken: String? = null,
#field:SerializedName("email")
val email: String? = null,
#field:SerializedName("image")
val image: String? = null,
#field:SerializedName("license_purchase_id")
val licensePurchaseId: String? = null,
#field:SerializedName("address")
val address: Any? = null,
#field:SerializedName("profile_active")
val profileActive: String? = null,
#field:SerializedName("degree")
val degree: String? = null,
#field:SerializedName("lastname")
val lastname: Any? = null,
#field:SerializedName("phone")
val phone: Any? = null,
#field:SerializedName("name")
val name: String? = null,
#field:SerializedName("dobirth")
val dobirth: Any? = null,
#field:SerializedName("age")
val age: Any? = null,
#field:SerializedName("username")
val username: String? = null,
#field:SerializedName("status")
val status: String? = null
)
Your Users class does not match the structure of your json, so you won't be able to parse it. Looking at your json, it's more like:
data class ResponseMessage(
val message: String,
val status: Boolean,
val data: List<User>
)
data class User(
val id: Long,
val username: String,
...
)
So I'm trying to fetch an API with endpoint https://someURL.com/switching-product/switch?orderID=A001,
This is the returned JSON format as seen from Postman.
So I use this Interface in the NetworkConfig.kt class to fetch this endpoint:
//Endpoint: https://someURL.com/switching-product/switch?orderID=A001
interface getOutstandingOrderDetail{
#GET("switch")
fun getOutstandingOrderDetail(#Query("orderID") orderID: String): Call<OutstandingOrderDetailPOJODataClassData>
}
and store it in this data class (Generated by an Android Extension that generate POJO from JSON):
data class OutstandingOrderDetailPOJODataClass(
#field:SerializedName("data")
val data: OutstandingOrderDetailPOJODataClassData? = null,
#field:SerializedName("error")
val error: Error? = null
)
data class OutstandingOrderDetailPOJODataClassData(
#field:SerializedName("Header")
val header: OutstandingOrderDetailPOJODataClassHeader? = null,
#field:SerializedName("Detail")
val detail: List<OutstandingOrderDetailPOJODataClassDetailItem?>? = null
)
data class OutstandingOrderDetailPOJODataClassHeader(
#field:SerializedName("buyer_address")
val buyerAddress: String? = null,
#field:SerializedName("total_price")
val totalPrice: Int? = null,
#field:SerializedName("buyer_name")
val buyerName: String? = null,
#field:SerializedName("status_confirmed_yn")
val statusConfirmedYn: String? = null,
#field:SerializedName("order_date")
val orderDate: String? = null,
#field:SerializedName("outlet_id")
val outletId: String? = null,
#field:SerializedName("nip")
val nip: String? = null,
#field:SerializedName("jumlah_product")
val jumlahProduct: Int? = null,
#field:SerializedName("last_update")
val lastUpdate: String? = null,
#field:SerializedName("phone_number")
val phoneNumber: String? = null,
#field:SerializedName("order_running_id")
val orderRunningId: Int? = null,
#field:SerializedName("status_tagged_yn")
val statusTaggedYn: String? = null,
#field:SerializedName("order_id")
val orderId: String? = null
)
data class OutstandingOrderDetailPOJODataClassError(
#field:SerializedName("msg")
val msg: String? = null,
#field:SerializedName("code")
val code: Int? = null,
#field:SerializedName("status")
val status: Boolean? = null
)
data class OutstandingOrderDetailPOJODataClassDetailItem(
#field:SerializedName("item_price_new")
val itemPriceNew: Int? = null,
#field:SerializedName("item_name_new")
val itemNameNew: String? = null,
#field:SerializedName("total_price")
val totalPrice: Int? = null,
#field:SerializedName("item_price")
val itemPrice: Int? = null,
#field:SerializedName("item_name")
val itemName: String? = null,
#field:SerializedName("status_refund")
val statusRefund: String? = null,
#field:SerializedName("detail_id")
val detailId: Int? = null,
#field:SerializedName("procode_new")
val procodeNew: String? = null,
#field:SerializedName("refund_date")
val refundDate: String? = null,
#field:SerializedName("request_refund")
val requestRefund: String? = null,
#field:SerializedName("procode")
val procode: String? = null,
#field:SerializedName("last_update")
val lastUpdate: String? = null,
#field:SerializedName("item_qty_new")
val itemQtyNew: Int? = null,
#field:SerializedName("order_id")
val orderId: String? = null,
#field:SerializedName("total_price_new")
val totalPriceNew: Int? = null,
#field:SerializedName("item_qty")
val itemQty: Int? = null,
#field:SerializedName("refund")
val refund: Int? = null
)
This is a code snippet of the fragment where I fetch the URL data:
private fun fetchOrderedItemListData() {
NetworkConfig()
.getOutstandingDetailOrderedItemListService()
.getOutstandingOrderDetailOrderedItemList("A001")
.enqueue(object :
Callback<OutstandingOrderDetailPOJODataClassData> {
override fun onFailure(
call: Call<OutstandingOrderDetailPOJODataClassData>,
t: Throwable
) {
Log.i("Order", "It Failed!!")
if (call.isCanceled) {
Toast.makeText(
(activity as AppCompatActivity),
"Request Aborted",
Toast.LENGTH_SHORT
).show()
} else {
Toast.makeText(
(activity as AppCompatActivity),
t.localizedMessage,
Toast.LENGTH_SHORT
).show()
}
}
override fun onResponse(
call: Call<OutstandingOrderDetailPOJODataClassData>,
response: Response<OutstandingOrderDetailPOJODataClassData>
) {
Log.i("Order", "Ordered Item FEtched -> \n ${response.body()}") <= This is for debugging purpose
binding.rvOrderedItemList.adapter =
response.body()
?.let { OrderedItemListAdapter(it, this#OrderDetailFragment) }
binding.rvOrderedItemList.layoutManager =
LinearLayoutManager((activity as AppCompatActivity))
}
})
}
As you can see above I use Log.i to try to print the response.body() in the LogCat, However it returns null in the Log Cat. You can see it here.
Am I missing something ? If there's any detail that I left out for this question, feel free to ask.
Your Retrofit function is set up as:
#GET("switch")
fun getOutstandingOrderDetail(#Query("orderID") orderID: String): Call<OutstandingOrderDetailPOJODataClassData>
The data type in the Call<> needs to match your JSON. You have data classes that match your JSON... but the root of that hierarchy is OutstandingOrderDetailPOJODataClass, not OutstandingOrderDetailPOJODataClassData. So, change your Retrofit function to:
#GET("switch")
fun getOutstandingOrderDetail(#Query("orderID") orderID: String): Call<OutstandingOrderDetailPOJODataClass>
I have the following models:
Cart object
open class Cart(
#PrimaryKey
var id: String? = null,
var orders: RealmList<Deal> = RealmList()
) : RealmObject()
Deal object
open class Deal(
#field:SerializedName("short_description")
var shortDescription: String? = null,
#field:SerializedName("original_price")
var originalPrice: Int? = null,
#field:SerializedName("deal_category")
var dealCategory: DealCategory? = null,
#field:SerializedName("images")
var images: RealmList<Image>? = null,
#field:SerializedName("featured")
var featured: String? = null,
#field:SerializedName("deal_type")
var dealType: DealType? = null,
#field:SerializedName("deal_of_day")
var dealOfDay: String? = null,
#field:SerializedName("restaurant")
var restaurant: Restaurant? = null,
#field:SerializedName("expiry_date")
var expiryDate: String? = null,
#field:SerializedName("description")
var description: String? = null,
#field:SerializedName("page_views")
var pageViews: Int? = null,
#field:SerializedName("price")
var price: Int? = null,
#field:SerializedName("name")
var name: String? = null,
#field:SerializedName("alias")
var alias: String? = null,
#field:SerializedName("links")
var links: RealmList<Link>? = null,
#field:SerializedName("id")
var id: Int? = null,
#field:SerializedName("user")
var user: User? = null,
#field:SerializedName("status")
var status: String? = null
): RealmObject()
Restaurant object
open class Restaurant(
#field:SerializedName("location_address")
var locationAddress: String? = null,
#field:SerializedName("website")
var website: String? = null,
#field:SerializedName("featured")
var featured: String? = null,
#field:SerializedName("latitude")
var latitude: String? = null,
#field:SerializedName("opening_time")
var openingTime: String? = null,
#field:SerializedName("description")
var description: String? = null,
#field:SerializedName("created_at")
var createdAt: String? = null,
#field:SerializedName("updated_at")
var updatedAt: String? = null,
#field:SerializedName("phone")
var phone: String? = null,
#field:SerializedName("closing_time")
var closingTime: String? = null,
#field:SerializedName("name")
var name: String? = null,
#field:SerializedName("preparation_time")
var preparationTime: Int? = null,
#field:SerializedName("alias")
var alias: String? = null,
#PrimaryKey
#field:SerializedName("id")
var id: Int? = null,
#field:SerializedName("ideal_class")
var idealClass: String? = null,
#field:SerializedName("email")
var email: String? = null,
#field:SerializedName("status")
var status: String? = null,
#field:SerializedName("longitude")
var longitude: String? = null
) : RealmObject()
When I initially add deals to the cart, everything functions ok but when I add a deal to the cart that has an already existing restaurant entry present, I get the RealmPrimaryKeyConstraintException. My method is as below:
Realm.getInstance(RealmUtil.realmConfiguration).use {realm ->
var cart = realm.where<Cart>().findFirst()
realm.executeTransaction {
if (cart == null) {
cart = Cart().apply {
id = getString(R.string.app_name)
orders.add(deal)
}
} else {
cart!!.orders.add(deal)
}
it.copyToRealmOrUpdate(cart!!)
invalidateOptionsMenu()
}
}
The error I get is:
io.realm.exceptions.RealmPrimaryKeyConstraintException: Primary key value already exists: 43 .
(/Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsObject.cpp:197)
at io.realm.internal.OsObject.nativeCreateNewObjectWithLongPrimaryKey(Native Method)
at io.realm.internal.OsObject.createWithPrimaryKey(OsObject.java:208)
at io.realm.Realm.createObjectInternal(Realm.java:996)
at io.realm.com_deals_bakooli_model_RestaurantRealmProxy.copy(com_deals_bakooli_model_RestaurantRealmProxy.java:1072)
at io.realm.com_deals_bakooli_model_RestaurantRealmProxy.copyOrUpdate(com_deals_bakooli_model_RestaurantRealmProxy.java:1062)
at io.realm.com_deals_bakooli_model_DealRealmProxy.copy(com_deals_bakooli_model_DealRealmProxy.java:1250)
at io.realm.com_deals_bakooli_model_DealRealmProxy.copyOrUpdate(com_deals_bakooli_model_DealRealmProxy.java:1181)
at io.realm.DefaultRealmModuleMediator.copyOrUpdate(DefaultRealmModuleMediator.java:214)
at io.realm.Realm.copyOrUpdate(Realm.java:1634)
at io.realm.Realm.copyToRealm(Realm.java:1016)
at io.realm.RealmModelListOperator.copyToRealmIfNeeded(RealmList.java:1530)
at io.realm.RealmModelListOperator.appendValue(RealmList.java:1456)
at io.realm.ManagedListOperator.append(RealmList.java:1337)
at io.realm.RealmList.add(RealmList.java:210)
at com.deals.bakooli.activity.SingleDealActivity$addItemToCart$$inlined$use$lambda$1.execute(SingleDealActivity.kt:102)
at io.realm.Realm.executeTransaction(Realm.java:1431)
at com.deals.bakooli.activity.SingleDealActivity.addItemToCart(SingleDealActivity.kt:91)
at com.deals.bakooli.activity.SingleDealActivity.onClick(SingleDealActivity.kt:82)
I don't understand why despite using copyToRealmOrUpdate, the exception is thrown. What am I doing wrong?
Your query looks incorrect.
Try
realm.where(Cart.class).findFirst()