fix issue with filterableClass enum

app/src/main/java/net/pokeranalytics/android/model/realm/Filter.kt

@@ -11,19 +11,18 @@ import net.pokeranalytics.android.ui.view.rowrepresentable.FilterElementRow
 import net.pokeranalytics.android.ui.view.rowrepresentable.FilterSectionRow
 import org.jetbrains.annotations.TestOnly
 import java.util.*
+import kotlin.reflect.KClass
 
 /**
  * A [Filter] is the top level representation of the filtering system
  * It contains a list of [FilterElement] describing the complete query to launch
  * The [Filter] is working closely with a [Filterable] interface providing the entity we want the query being launched on
  */
-open class Filter() : RealmObject() {
+open class Filter(entity:Filterable) : RealmObject() {
 
-    constructor(entity:Filterable) : this() {
+    constructor() : this(entity = Session)
-        this.entityType = FilterableClass.filterableClass(entity = entity).ordinal
-    }
 
-    private var entityType : Int? = null
+    private var entityType : Int? = FilterableClass.filterableClass(entity = entity).ordinal
     private val filterableClass : FilterableClass?
         get() {
             entityType?.let {
@@ -49,17 +48,26 @@ open class Filter() : RealmObject() {
             get() {
                 return when (this) {
                     SESSION -> Session::class.java
-                    else -> throw FilterUnhandledEntityException("this entity is not filterable")
+//                    else -> throw FilterUnhandledEntityException("this entity is not filterable")
                 }
             }
 
 
+        val filterable : Filterable
+            get() {
+                return when (this) {
+                    SESSION -> Session.Companion
+//                    else -> throw FilterUnhandledEntityException("this entity is not filterable")
+                }
+            }
+
     }
 
     companion object {
         @TestOnly
         fun queryOn(realm: Realm, entity: Filterable, queries:List<QueryType>): RealmResults<*> {
-            var realmQuery : RealmQuery<out RealmObject> = realm.where(FilterableClass.filterableClass(entity).relatedEntity)
+            val realmEntity : Class < out RealmObject > = FilterableClass.filterableClass(entity).relatedEntity
+            var realmQuery : RealmQuery<out RealmObject> = realm.where(realmEntity)
             queries.forEach {
                 realmQuery = (it.filter(realmQuery, entity))
             }
@@ -124,12 +132,13 @@ open class Filter() : RealmObject() {
     }
 
     fun queryOn(entity: Filterable) : RealmResults<*> {
-        val realmEntity : Class < out RealmObject > = filterableClass?.relatedEntity ?: throw FilterMissingEntityException("this filter has no entity initialized")
+        val filterableClass : FilterableClass = this.filterableClass ?: throw FilterMissingEntityException("this filter has no entity initialized")
+        val realmEntity : Class < out RealmObject > = filterableClass.relatedEntity
         var realmQuery : RealmQuery<out RealmObject> = realm.where(realmEntity)
         this.filterElements.map {
             it.queryType
         }.forEach {
-            realmQuery = (it.filter(realmQuery, entity))
+            realmQuery = (it.filter(realmQuery, filterableClass.filterable))
         }
 
         return realmQuery.findAll()