Fixed database update due to renaming folders

src/com/owncloud/android/datamodel/DataStorageManager.java

@@ -42,4 +42,6 @@ public interface DataStorageManager {
     public void removeFile(OCFile file, boolean removeLocalCopy);
     
     public void removeDirectory(OCFile dir, boolean removeDBData, boolean removeLocalContent);
+
+    public void moveDirectory(OCFile dir, String newPath);
 }

src/com/owncloud/android/datamodel/FileDataStorageManager.java

@@ -500,5 +500,76 @@ public class FileDataStorageManager implements DataStorageManager {
             }
         }
     }
+    
+    
+    /**
+     * Updates database for a folder that was moved to a different location.
+     * 
+     * TODO explore better (faster) implementations
+     * TODO throw exceptions up !
+     */
+    @Override
+    public void moveDirectory(OCFile dir, String newPath) {
+        // TODO check newPath
+        
+        if (dir != null && dir.isDirectory() && dir.fileExists() && !dir.getFileName().equals(OCFile.PATH_SEPARATOR)) {
+            /// 1. get all the descendants of 'dir' in a single QUERY (including 'dir')
+            Cursor c = null;
+            if (getContentProvider() != null) {
+                try {
+                    c = getContentProvider().query(ProviderTableMeta.CONTENT_URI, 
+                                                    null,
+                                                    ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " + ProviderTableMeta.FILE_PATH + " LIKE ?",
+                                                    new String[] { mAccount.name, dir.getRemotePath() + "%" }, null);
+                } catch (RemoteException e) {
+                    Log.e(TAG, e.getMessage());
+                }
+            } else {
+                c = getContentResolver().query(ProviderTableMeta.CONTENT_URI, 
+                                                null,
+                                                ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " + ProviderTableMeta.FILE_PATH + " LIKE ?",
+                                                new String[] { mAccount.name, dir.getRemotePath() + "%" }, null);
+            }
+
+            /// 2. prepare a batch of update operations to change all the descendants
+            ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>(c.getCount());
+            ContentValues cv = new ContentValues();
+            int lengthOfOldPath = dir.getRemotePath().length();
+            String defaultSavePath = FileDownloader.getSavePath(mAccount.name);
+            int lengthOfOldStoragePath = defaultSavePath.length() + lengthOfOldPath;
+            if (c.moveToFirst()) {
+                do {
+                    OCFile child = createFileInstance(c);
+                    cv.put(ProviderTableMeta.FILE_PATH, newPath + child.getRemotePath().substring(lengthOfOldPath));
+                    if (child.getStoragePath() != null && child.getStoragePath().startsWith(defaultSavePath)) {
+                        cv.put(ProviderTableMeta.FILE_STORAGE_PATH, defaultSavePath + newPath + child.getStoragePath().substring(lengthOfOldStoragePath));
+                    }
+                    operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
+                                                                        withValues(cv).
+                                                                        withSelection(  ProviderTableMeta._ID + "=?", 
+                                                                                new String[] { String.valueOf(child.getFileId()) })
+                                                                                .build());
+                } while (c.moveToNext());
+            }
+            c.close();
+            
+            /// 3. apply updates in batch
+            try {
+                if (getContentResolver() != null) {
+                    getContentResolver().applyBatch(ProviderMeta.AUTHORITY_FILES, operations);
+                
+                } else {
+                    getContentProvider().applyBatch(operations);
+                }
+                
+            } catch (OperationApplicationException e) {
+                Log.e(TAG, "Fail to update descendants of " + dir.getFileId() + " in database", e);
+                
+            } catch (RemoteException e) {
+                Log.e(TAG, "Fail to update desendants of " + dir.getFileId() + " in database", e);
+            }
+            
+        }
+    }
 
 }

src/com/owncloud/android/operations/RenameFileOperation.java

@@ -24,6 +24,7 @@ import java.io.IOException;
 import org.apache.jackrabbit.webdav.client.methods.DavMethodBase;
 //import org.apache.jackrabbit.webdav.client.methods.MoveMethod;
 
+import android.accounts.Account;
 import android.util.Log;
 
 import com.owncloud.android.datamodel.DataStorageManager;
@@ -48,7 +49,9 @@ public class RenameFileOperation extends RemoteOperation {
     
 
     private OCFile mFile;
+    private Account mAccount;
     private String mNewName;
+    private String mNewRemotePath;
     private DataStorageManager mStorageManager;
     
     
@@ -56,12 +59,15 @@ public class RenameFileOperation extends RemoteOperation {
      * Constructor
      * 
      * @param file                  OCFile instance describing the remote file or folder to rename
+     * @param account               OwnCloud account containing the remote file 
      * @param newName               New name to set as the name of file.
      * @param storageManager        Reference to the local database corresponding to the account where the file is contained. 
      */
-    public RenameFileOperation(OCFile file, String newName, DataStorageManager storageManager) {
+    public RenameFileOperation(OCFile file, Account account, String newName, DataStorageManager storageManager) {
         mFile = file;
+        mAccount = account;
         mNewName = newName;
+        mNewRemotePath = null;
         mStorageManager = storageManager;
     }
   
@@ -80,7 +86,7 @@ public class RenameFileOperation extends RemoteOperation {
         RemoteOperationResult result = null;
         
         LocalMoveMethod move = null;
-        String newRemotePath = null;
+        mNewRemotePath = null;
         try {
             if (mNewName.equals(mFile.getFileName())) {
                 return new RemoteOperationResult(ResultCode.OK);
@@ -88,7 +94,10 @@ public class RenameFileOperation extends RemoteOperation {
         
             String parent = (new File(mFile.getRemotePath())).getParent();
             parent = (parent.endsWith(OCFile.PATH_SEPARATOR)) ? parent : parent + OCFile.PATH_SEPARATOR; 
-            newRemotePath =  parent + mNewName;
+            mNewRemotePath =  parent + mNewName;
+            if (mFile.isDirectory()) {
+                mNewRemotePath += OCFile.PATH_SEPARATOR;
+            }
             
             // check if the new name is valid in the local file system
             if (!isValidNewName()) {
@@ -96,34 +105,22 @@ public class RenameFileOperation extends RemoteOperation {
             }
         
             // check if a file with the new name already exists
-            if (client.existsFile(newRemotePath) ||                             // remote check could fail by network failure, or by indeterminate behavior of HEAD for folders ... 
-                    mStorageManager.getFileByPath(newRemotePath) != null) {     // ... so local check is convenient
+            if (client.existsFile(mNewRemotePath) ||                             // remote check could fail by network failure, or by indeterminate behavior of HEAD for folders ... 
+                    mStorageManager.getFileByPath(mNewRemotePath) != null) {     // ... so local check is convenient
                 return new RemoteOperationResult(ResultCode.INVALID_OVERWRITE);
             }
             move = new LocalMoveMethod( client.getBaseUri() + WebdavUtils.encodePath(mFile.getRemotePath()),
-                                        client.getBaseUri() + WebdavUtils.encodePath(newRemotePath));
+                                        client.getBaseUri() + WebdavUtils.encodePath(mNewRemotePath));
             int status = client.executeMethod(move, RENAME_READ_TIMEOUT, RENAME_CONNECTION_TIMEOUT);
             if (move.succeeded()) {
 
-                // create new OCFile instance for the renamed file
-                /*OCFile newFile = new OCFile(mStorageManager.getFileById(mFile.getParentId()).getRemotePath() + mNewName;   // TODO - NOT CREATE NEW OCFILE; ADD setFileName METHOD 
-                OCFile oldFile = mFile;
-                mFile = newFile; */
-                mFile.setFileName(mNewName);
-                
-                // try to rename the local copy of the file
-                if (mFile.isDown()) {
-                    File f = new File(mFile.getStoragePath());
-                    String newStoragePath = f.getParent() + mNewName;
-                    if (f.renameTo(new File(newStoragePath))) {
-                        mFile.setStoragePath(newStoragePath);
-                    }
-                    // else - NOTHING: the link to the local file is kept although the local name can't be updated
-                    // TODO - study conditions when this could be a problem
+                if (mFile.isDirectory()) {
+                    saveLocalDirectory();
+                    
+                } else {
+                    saveLocalFile();
+                    
                 }
-                
-                //mStorageManager.removeFile(oldFile, false);
-                mStorageManager.saveFile(mFile);
              
             /* 
              *} else if (mFile.isDirectory() && (status == 207 || status >= 500)) {
@@ -141,11 +138,11 @@ public class RenameFileOperation extends RemoteOperation {
             
             move.getResponseBodyAsString(); // exhaust response, although not interesting
             result = new RemoteOperationResult(move.succeeded(), status);
-            Log.i(TAG, "Rename " + mFile.getRemotePath() + " to " + newRemotePath + ": " + result.getLogMessage());
+            Log.i(TAG, "Rename " + mFile.getRemotePath() + " to " + mNewRemotePath + ": " + result.getLogMessage());
             
         } catch (Exception e) {
             result = new RemoteOperationResult(e);
-            Log.e(TAG, "Rename " + mFile.getRemotePath() + " to " + ((newRemotePath==null) ? mNewName : newRemotePath) + ": " + result.getLogMessage(), e);
+            Log.e(TAG, "Rename " + mFile.getRemotePath() + " to " + ((mNewRemotePath==null) ? mNewName : mNewRemotePath) + ": " + result.getLogMessage(), e);
             
         } finally {
             if (move != null)
@@ -155,6 +152,33 @@ public class RenameFileOperation extends RemoteOperation {
     }
 
     
+    private void saveLocalDirectory() {
+        mStorageManager.moveDirectory(mFile, mNewRemotePath);
+        String localPath = FileDownloader.getSavePath(mAccount.name) + mFile.getRemotePath();
+        File localDir = new File(localPath);
+        if (localDir.exists()) {
+            localDir.renameTo(new File(FileDownloader.getSavePath(mAccount.name) + mNewRemotePath));
+            // TODO - if renameTo fails, children files that are already down will result unlinked
+        }
+    }
+
+    private void saveLocalFile() {
+        mFile.setFileName(mNewName);
+        
+        // try to rename the local copy of the file
+        if (mFile.isDown()) {
+            File f = new File(mFile.getStoragePath());
+            String newStoragePath = f.getParent() + mNewName;
+            if (f.renameTo(new File(newStoragePath))) {
+                mFile.setStoragePath(newStoragePath);
+            }
+            // else - NOTHING: the link to the local file is kept although the local name can't be updated
+            // TODO - study conditions when this could be a problem
+        }
+        
+        mStorageManager.saveFile(mFile);
+    }
+
     /**
      * Checks if the new name to set is valid in the file system 
      * 

src/com/owncloud/android/ui/fragment/FileDetailFragment.java

@@ -829,6 +829,7 @@ public class FileDetailFragment extends SherlockFragment implements
             String newFilename = dialog.getNewFilename();
             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
             mLastRemoteOperation = new RenameFileOperation( mFile, 
+                                                            mAccount, 
                                                             newFilename, 
                                                             new FileDataStorageManager(mAccount, getActivity().getContentResolver()));
             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());

src/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -441,6 +441,7 @@ public class OCFileListFragment extends FragmentListView implements EditNameDial
             String newFilename = dialog.getNewFilename();
             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
             RemoteOperation operation = new RenameFileOperation(mTargetFile, 
+                                                                AccountUtils.getCurrentOwnCloudAccount(getActivity()), 
                                                                 newFilename, 
                                                                 mContainerActivity.getStorageManager());
             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());