Add migration class

app/src/main/java/net/pokeranalytics/android/model/migrations/PokerAnalyticsMigration.kt

@@ -0,0 +1,63 @@
+package net.pokeranalytics.android.model.migrations
+
+import io.realm.DynamicRealm
+import io.realm.RealmMigration
+import timber.log.Timber
+
+
+class PokerAnalyticsMigration : RealmMigration {
+
+	override fun migrate(realm: DynamicRealm, oldVersion: Long, newVersion: Long) {
+
+		// DynamicRealm exposes an editable schema
+		val schema = realm.schema
+
+		var currentVersion = oldVersion.toInt()
+		Timber.d("*** migrate from $oldVersion to $newVersion")
+
+		// Migrate to version 1: Add a new class.
+		// Example:
+		// public Person extends RealmObject {
+		//     private String name;
+		//     private int age;
+		//     // getters and setters left out for brevity
+		// }
+		/*
+		if (currentVersion == 0) {
+			Timber.d("*** Running migration 1")
+			schema.get("Session")!!
+				.addField("isUpdating", Boolean::class.java)
+			currentVersion++
+		}
+		*/
+
+		// Migrate to version 2: Add a primary key + object references
+		// Example:
+		// public Person extends RealmObject {
+		//     private String name;
+		//     @PrimaryKey
+		//     private int age;
+		//     private Dog favoriteDog;
+		//     private RealmList<Dog> dogs;
+		//     // getters and setters left out for brevity
+		// }
+		/*
+		if (currentVersion == 1) {
+			schema.get("Person")!!
+				.addField("id", Long::class.javaPrimitiveType!!, FieldAttribute.PRIMARY_KEY)
+				.addRealmObjectField("favoriteDog", schema.get("Dog")!!)
+				.addRealmListField("dogs", schema.get("Dog")!!)
+			currentVersion++
+		}
+		*/
+
+	}
+
+	override fun equals(other: Any?): Boolean {
+		return other is RealmMigration
+	}
+
+	override fun hashCode(): Int {
+		return RealmMigration::javaClass.hashCode()
+	}
+}