From ed851cb04d1de0a74fc59255e34ba8436d0449e4 Mon Sep 17 00:00:00 2001
From: Conny Duck <k.pozniak@gmx.at>
Date: Mon, 23 Oct 2017 21:50:41 +0200
Subject: [PATCH] fixes a crash within TootDao that is caused by an change in
 the room library

---
 app/build.gradle                              |  2 +-
 .../keylesspalace/tusky/TuskyApplication.java |  1 +
 .../keylesspalace/tusky/db/AppDatabase.java   | 20 +++++++++++++++++--
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 94509f08..cf11a128 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -59,7 +59,7 @@ dependencies {
     compile "org.jsoup:jsoup:1.10.3"
 
     //room
-    compile "android.arch.persistence.room:runtime:1.0.0-beta2"
+    compile "android.arch.persistence.room:runtime:1.0.0-rc1"
     annotationProcessor 'android.arch.persistence.room:compiler:1.0.0-beta2'
 
     testCompile "junit:junit:4.12"
diff --git a/app/src/main/java/com/keylesspalace/tusky/TuskyApplication.java b/app/src/main/java/com/keylesspalace/tusky/TuskyApplication.java
index 86c865b0..26016566 100644
--- a/app/src/main/java/com/keylesspalace/tusky/TuskyApplication.java
+++ b/app/src/main/java/com/keylesspalace/tusky/TuskyApplication.java
@@ -54,6 +54,7 @@ public class TuskyApplication extends Application {
 
         db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "tuskyDB")
                 .allowMainThreadQueries()
+                .addMigrations(AppDatabase.MIGRATION_2_3)
                 .build();
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/keylesspalace/tusky/db/AppDatabase.java b/app/src/main/java/com/keylesspalace/tusky/db/AppDatabase.java
index c4bea594..28f69da7 100644
--- a/app/src/main/java/com/keylesspalace/tusky/db/AppDatabase.java
+++ b/app/src/main/java/com/keylesspalace/tusky/db/AppDatabase.java
@@ -1,14 +1,30 @@
 package com.keylesspalace.tusky.db;
 
+import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.arch.persistence.room.Database;
 import android.arch.persistence.room.RoomDatabase;
+import android.arch.persistence.room.migration.Migration;
 
 /**
  * DB version & declare DAO
  */
 
-@Database(entities = {TootEntity.class}, version = 2, exportSchema = false)
+@Database(entities = {TootEntity.class}, version = 3, exportSchema = false)
 public abstract class AppDatabase extends RoomDatabase {
 
     public abstract TootDao tootDao();
-}
+
+    public static final Migration MIGRATION_2_3 = new Migration(2, 3) {
+        @Override
+        public void migrate(SupportSQLiteDatabase database) {
+            //this migration is necessary because of a change in the room library
+            database.execSQL("CREATE TABLE TootEntity2 (uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, text TEXT, urls TEXT, contentWarning TEXT);");
+
+            database.execSQL("INSERT INTO TootEntity2 SELECT * FROM TootEntity;");
+            database.execSQL("DROP TABLE TootEntity;");
+            database.execSQL("ALTER TABLE TootEntity2 RENAME TO TootEntity;");
+
+        }
+    };
+
+}
\ No newline at end of file