Add migration procedures

Signed-off-by: Mario Danic <mario@lovelyhq.com>

src/main/java/com/owncloud/android/datamodel/SyncedFolder.java

@@ -26,7 +26,7 @@ import java.io.Serializable;
 /**
  * Synced folder entity containing all information per synced folder.
  */
-public class SyncedFolder implements Serializable {
+public class SyncedFolder implements Serializable, Cloneable {
     public static final long UNPERSISTED_ID = Long.MIN_VALUE;
     private static final long serialVersionUID = -793476118299906429L;
     private long id = UNPERSISTED_ID;
@@ -94,6 +94,15 @@ public class SyncedFolder implements Serializable {
         this.type = type;
     }
 
+    public Object clone() {
+        try {
+            return super.clone();
+        } catch( CloneNotSupportedException e) {
+            return null;
+        }
+    }
+
+
     public long getId() {
         return id;
     }

src/main/java/com/owncloud/android/datamodel/SyncedFolderProvider.java

@@ -1,21 +1,21 @@
 /**
- *   Nextcloud Android client application
+ * Nextcloud Android client application
  *
- *   Copyright (C) 2016 Andy Scherzinger
- *   Copyright (C) 2016 Nextcloud.
+ * Copyright (C) 2016 Andy Scherzinger
+ * Copyright (C) 2016 Nextcloud.
  *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
- *   License as published by the Free Software Foundation; either
- *   version 3 of the License, or any later version.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
  *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
  *
- *   You should have received a copy of the GNU Affero General Public
- *   License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.owncloud.android.datamodel;
 
@@ -270,6 +270,17 @@ public class SyncedFolderProvider extends Observable {
         return result;
     }
 
+    /**
+     * delete any records of synchronized folders that are withing the given list of ids.
+     */
+    public int deleteSyncedFoldersInList(ArrayList<Long> ids) {
+        return mContentResolver.delete(
+                ProviderMeta.ProviderTableMeta.CONTENT_URI_SYNCED_FOLDERS,
+                ProviderMeta.ProviderTableMeta._ID + " IN (?)",
+                new String[]{String.valueOf(ids)}
+        );
+    }
+
     /**
      * update given synced folder.
      *

src/main/java/com/owncloud/android/providers/FileContentProvider.java

@@ -27,6 +27,7 @@ import android.accounts.AccountManager;
 import android.content.ContentProvider;
 import android.content.ContentProviderOperation;
 import android.content.ContentProviderResult;
+import android.content.ContentResolver;
 import android.content.ContentUris;
 import android.content.ContentValues;
 import android.content.Context;
@@ -42,7 +43,11 @@ import android.text.TextUtils;
 
 import com.owncloud.android.MainApp;
 import com.owncloud.android.R;
+import com.owncloud.android.datamodel.MediaFolder;
+import com.owncloud.android.datamodel.MediaProvider;
 import com.owncloud.android.datamodel.OCFile;
+import com.owncloud.android.datamodel.SyncedFolder;
+import com.owncloud.android.datamodel.SyncedFolderProvider;
 import com.owncloud.android.datamodel.UploadsStorageManager;
 import com.owncloud.android.db.ProviderMeta;
 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
@@ -54,6 +59,7 @@ import com.owncloud.android.utils.MimeType;
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.List;
 import java.util.Locale;
 
 /**
@@ -982,11 +988,42 @@ public class FileContentProvider extends ContentProvider {
                 Log_OC.i(SQL, "Entering in the #20 ADD in onUpgrade");
                 db.beginTransaction();
                 try {
-                    // add type column default being IMAGE(0)
+                    // add type column default being LEGACY (3)
                     db.execSQL(ALTER_TABLE + ProviderTableMeta.SYNCED_FOLDERS_TABLE_NAME +
                             ADD_COLUMN + ProviderTableMeta.SYNCED_FOLDER_TYPE +
                             " INTEGER " + " DEFAULT 3");
 
+                    ContentResolver contentResolver = getContext().getContentResolver();
+
+                    SyncedFolderProvider syncedFolderProvider = new SyncedFolderProvider(contentResolver);
+
+                    final List<MediaFolder> imageMediaFolders = MediaProvider.getImageFolders(contentResolver, 0);
+                    final List<MediaFolder> videoMediaFolders = MediaProvider.getVideoFolders(contentResolver, 0);
+
+                    ArrayList<Long> idsToDelete = new ArrayList<>();
+                    for (SyncedFolder syncedFolder : syncedFolderProvider.getSyncedFolders()) {
+                        idsToDelete.add(syncedFolder.getId());
+                        for (int i = 0; i < imageMediaFolders.size(); i++) {
+                            if (imageMediaFolders.get(i).absolutePath.equals(syncedFolder.getLocalPath())) {
+                                SyncedFolder imageSyncedFolder = (SyncedFolder) syncedFolder.clone();
+                                imageSyncedFolder.setType(MediaFolder.IMAGE);
+                                syncedFolderProvider.storeFolderSync(imageSyncedFolder);
+                                break;
+                            }
+                        }
+
+                        for (int j = 0; j < videoMediaFolders.size(); j++) {
+                            if (videoMediaFolders.get(j).absolutePath.equals(syncedFolder.getLocalPath())) {
+                                SyncedFolder videoSyncedFolder = (SyncedFolder) syncedFolder.clone();
+                                videoSyncedFolder.setType(MediaFolder.VIDEO);
+                                syncedFolderProvider.storeFolderSync(videoSyncedFolder);
+                                break;
+                            }
+                        }
+                    }
+
+                    syncedFolderProvider.deleteSyncedFoldersInList(idsToDelete);
+
                     upgraded = true;
                     db.setTransactionSuccessful();
                 } finally {