import android.database.DatabaseUtils;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
-import android.provider.ContactsContract;
public class BookmarksDatabaseHandler extends SQLiteOpenHelper {
private static final int SCHEMA_VERSION = 1;
return bookmarksDatabase.rawQuery(GET_ONE_BOOKMARK, null);
}
+ public String getFolderName (int databaseId) {
+ // Get a readable database handle.
+ SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
+
+ // Prepare the SQL statement to get the `Cursor` for the folder.
+ final String GET_FOLDER = "Select * FROM " + BOOKMARKS_TABLE +
+ " WHERE " + _ID + " = " + databaseId;
+
+ // Get `folderCursor`. The second argument is `null` because there are no `selectionArgs`.
+ Cursor folderCursor = bookmarksDatabase.rawQuery(GET_FOLDER, null);
+
+ // Get `folderName`.
+ folderCursor.moveToFirst();
+ String folderName = folderCursor.getString(folderCursor.getColumnIndex(BOOKMARK_NAME));
+
+ // Close the cursor and the database handle.
+ folderCursor.close();
+ bookmarksDatabase.close();
+
+ // Return the folder name.
+ return folderName;
+ }
+
public Cursor getFolderCursor(String folderName) {
// Get a readable database handle.
SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
return bookmarksDatabase.rawQuery(GET_FOLDER, null);
}
+ public Cursor getFoldersCursorExcept(String exceptFolders) {
+ // Get a readable database handle.
+ SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
+
+ // Prepare the SQL statement to get the `Cursor` for the folders.
+ final String GET_FOLDERS_EXCEPT = "Select * FROM " + BOOKMARKS_TABLE +
+ " WHERE " + IS_FOLDER + " = " + 1 +
+ " AND " + BOOKMARK_NAME + " NOT IN (" + exceptFolders +
+ ") ORDER BY " + BOOKMARK_NAME + " ASC";
+
+ // Return the results as a `Cursor`. The second argument is `null` because there are no `selectionArgs`.
+ // We can't close the `Cursor` because we need to use it in the parent activity.
+ return bookmarksDatabase.rawQuery(GET_FOLDERS_EXCEPT, null);
+ }
+
+ public Cursor getSubfoldersCursor(String currentFolder) {
+ // Get a readable database handle.
+ SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
+
+ // SQL escape `currentFolder.
+ currentFolder = DatabaseUtils.sqlEscapeString(currentFolder);
+
+ // Prepare the SQL statement to get the `Cursor` for the subfolders.
+ final String GET_SUBFOLDERS = "Select * FROM " + BOOKMARKS_TABLE +
+ " WHERE " + PARENT_FOLDER + " = " + currentFolder +
+ " AND " + IS_FOLDER + " = " + 1;
+
+ // Return the results as a `Cursor`. The second argument is `null` because there are no `selectionArgs`.
+ // We can't close the `Cursor` because we need to use it in the parent activity.
+ return bookmarksDatabase.rawQuery(GET_SUBFOLDERS, null);
+ }
+
public String getParentFolder(String currentFolder) {
// Get a readable database handle.
SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
// Prepare the SQL statement to get the parent folder.
final String GET_PARENT_FOLDER = "Select * FROM " + BOOKMARKS_TABLE +
- " WHERE " + IS_FOLDER + " = " + 1 + " AND " + BOOKMARK_NAME + " = " + currentFolder;
+ " WHERE " + IS_FOLDER + " = " + 1 +
+ " AND " + BOOKMARK_NAME + " = " + currentFolder;
// The second argument is `null` because there are no `selectionArgs`.
Cursor bookmarkCursor = bookmarksDatabase.rawQuery(GET_PARENT_FOLDER, null);
// Get everything in the BOOKMARKS_TABLE.
final String GET_ALL_BOOKMARKS = "Select * FROM " + BOOKMARKS_TABLE +
- " WHERE " + PARENT_FOLDER + " = " + folderName + " ORDER BY " + DISPLAY_ORDER + " ASC";
+ " WHERE " + PARENT_FOLDER + " = " + folderName +
+ " ORDER BY " + DISPLAY_ORDER + " ASC";
// Return the results as a Cursor. The second argument is `null` because there are no selectionArgs.
// We can't close the Cursor because we need to use it in the parent activity.
// Prepare the SQL statement to select all items except those with the specified IDs.
final String GET_All_BOOKMARKS_EXCEPT_SPECIFIED = "Select * FROM " + BOOKMARKS_TABLE +
- " WHERE " + PARENT_FOLDER + " = " + folderName + " AND " + _ID + " NOT IN (" + doNotGetIdsString + ") ORDER BY " + DISPLAY_ORDER + " ASC";
+ " WHERE " + PARENT_FOLDER + " = " + folderName +
+ " AND " + _ID + " NOT IN (" + doNotGetIdsString +
+ ") ORDER BY " + DISPLAY_ORDER + " ASC";
- // Return the results as a `Cursor`. The second argument is `null` because there are no selectionArgs.
+ // Return the results as a `Cursor`. The second argument is `null` because there are no `selectionArgs`.
// We can't close the `Cursor` because we need to use it in the parent activity.
return bookmarksDatabase.rawQuery(GET_All_BOOKMARKS_EXCEPT_SPECIFIED, null);
}
+ public boolean isFolder(int databaseId) {
+ // Get a readable database handle.
+ SQLiteDatabase bookmarksDatabase = this.getReadableDatabase();
+
+ // Prepare the SQL statement to determine if `databaseId` is a folder.
+ final String CHECK_IF_FOLDER = "Select * FROM " + BOOKMARKS_TABLE +
+ " WHERE " + _ID + " = " + databaseId;
+
+ // Populate folderCursor. The second argument is `null` because there are no `selectionArgs`.
+ Cursor folderCursor = bookmarksDatabase.rawQuery(CHECK_IF_FOLDER, null);
+
+ // Ascertain if this database ID is a folder.
+ folderCursor.moveToFirst();
+ boolean isFolder = (folderCursor.getInt(folderCursor.getColumnIndex(IS_FOLDER)) == 1);
+
+ // Close the `Cursor` and the database handle.
+ folderCursor.close();
+ bookmarksDatabase.close();
+
+ return isFolder;
+ }
+
public void updateBookmark(int databaseId, String bookmarkName, String bookmarkUrl) {
// Store the updated values in `bookmarkContentValues`.
ContentValues bookmarkContentValues = new ContentValues();
}
public void updateBookmarkDisplayOrder(int databaseId, int displayOrder) {
- // Store the updated values in `bookmarkContentValues`.
- ContentValues bookmarkContentValues = new ContentValues();
+ // Get a writable database handle.
+ SQLiteDatabase bookmarksDatabase = this.getWritableDatabase();
+ // Store the new display order in `bookmarkContentValues`.
+ ContentValues bookmarkContentValues = new ContentValues();
bookmarkContentValues.put(DISPLAY_ORDER, displayOrder);
+ // Update the database. The last argument is `null` because there are no `whereArgs`.
+ bookmarksDatabase.update(BOOKMARKS_TABLE, bookmarkContentValues, _ID + " = " + databaseId, null);
+
+ // Close the database handle.
+ bookmarksDatabase.close();
+ }
+
+ public void moveToFolder(int databaseId, String newFolder) {
// Get a writable database handle.
SQLiteDatabase bookmarksDatabase = this.getWritableDatabase();
- // Update the database. The last argument is `null` because there are no `whereArgs`.
+ // Get the highest `DISPLAY_ORDER` in the new folder
+ String newFolderSqlEscaped = DatabaseUtils.sqlEscapeString(newFolder);
+ final String NEW_FOLDER = "Select * FROM " + BOOKMARKS_TABLE +
+ " WHERE " + PARENT_FOLDER + " = " + newFolderSqlEscaped +
+ " ORDER BY " + DISPLAY_ORDER + " ASC";
+ // The second argument is `null` because there are no `selectionArgs`.
+ Cursor newFolderCursor = bookmarksDatabase.rawQuery(NEW_FOLDER, null);
+ int displayOrder;
+ if (newFolderCursor.getCount() > 0) {
+ newFolderCursor.moveToLast();
+ displayOrder = newFolderCursor.getInt(newFolderCursor.getColumnIndex(DISPLAY_ORDER)) + 1;
+ } else {
+ displayOrder = 0;
+ }
+ newFolderCursor.close();
+
+ // Store the new values in `bookmarkContentValues`.
+ ContentValues bookmarkContentValues = new ContentValues();
+ bookmarkContentValues.put(DISPLAY_ORDER, displayOrder);
+ bookmarkContentValues.put(PARENT_FOLDER, newFolder);
+
+ // Update the database. The last argument is 'null' because there are no 'whereArgs'.
bookmarksDatabase.update(BOOKMARKS_TABLE, bookmarkContentValues, _ID + " = " + databaseId, null);
// Close the database handle.