コード例 #1
0
 @Override
 protected long insertBookInfo(ZLFile file, String encoding, String language, String title) {
   if (myInsertBookInfoStatement == null) {
     myInsertBookInfoStatement =
         myDatabase.compileStatement(
             "INSERT OR IGNORE INTO Books (encoding,language,title,file_id) VALUES (?,?,?,?)");
   }
   SQLiteUtil.bindString(myInsertBookInfoStatement, 1, encoding);
   SQLiteUtil.bindString(myInsertBookInfoStatement, 2, language);
   myInsertBookInfoStatement.bindString(3, title);
   final FileInfoSet infoSet = new FileInfoSet(file);
   myInsertBookInfoStatement.bindLong(4, infoSet.getId(file));
   return myInsertBookInfoStatement.executeInsert();
 }
コード例 #2
0
  private void updateTables6() {
    myDatabase.execSQL("ALTER TABLE Bookmarks ADD COLUMN model_id TEXT");

    myDatabase.execSQL("ALTER TABLE Books ADD COLUMN file_id INTEGER");

    myDatabase.execSQL("DELETE FROM Files");
    final FileInfoSet infoSet = new FileInfoSet();
    Cursor cursor = myDatabase.rawQuery("SELECT file_name FROM Books", null);
    while (cursor.moveToNext()) {
      infoSet.check(ZLFile.createFileByPath(cursor.getString(0)).getPhysicalFile(), false);
    }
    cursor.close();
    infoSet.save();

    cursor = myDatabase.rawQuery("SELECT book_id,file_name FROM Books", null);
    final SQLiteStatement deleteStatement =
        myDatabase.compileStatement("DELETE FROM Books WHERE book_id = ?");
    final SQLiteStatement updateStatement =
        myDatabase.compileStatement("UPDATE Books SET file_id = ? WHERE book_id = ?");
    while (cursor.moveToNext()) {
      final long bookId = cursor.getLong(0);
      final long fileId = infoSet.getId(ZLFile.createFileByPath(cursor.getString(1)));

      if (fileId == -1) {
        deleteStatement.bindLong(1, bookId);
        deleteStatement.execute();
      } else {
        updateStatement.bindLong(1, fileId);
        updateStatement.bindLong(2, bookId);
        updateStatement.execute();
      }
    }
    cursor.close();

    myDatabase.execSQL("ALTER TABLE Books RENAME TO Books_Obsolete");
    myDatabase.execSQL(
        "CREATE TABLE Books("
            + "book_id INTEGER PRIMARY KEY,"
            + "encoding TEXT,"
            + "language TEXT,"
            + "title TEXT NOT NULL,"
            + "file_id INTEGER UNIQUE NOT NULL REFERENCES Files(file_id))");
    myDatabase.execSQL(
        "INSERT INTO Books (book_id,encoding,language,title,file_id) SELECT book_id,encoding,language,title,file_id FROM Books_Obsolete");
    myDatabase.execSQL("DROP TABLE Books_Obsolete");
  }