Может ли кто-нибудь изменить этот код, чтобы включить одну целочисленную переменную. Конечно, не включая целочисленную версию базы данных. :)
пакет T2T.Game;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
открытый класс DatabaseUtil {
private static final String TAG = "DatabaseUtil";
/**
* Database Name
*/
private static final String DATABASE_NAME = "t2tvariables_database";
/**
* Database Version
*/
private static final int DATABASE_VERSION = 1;
/**
* Table Name
*/
private static final String DATABASE_TABLE = "tb_variable";
/**
* Table columns
*/
public static final String KEY_VARIABLE = "variable";
public static final String KEY_VALUE = "grade";
public static final String KEY_ROWID = "_id";
/**
* Database creation sql statement
*/
private static final String CREATE_VARIABLE_TABLE =
"create table " + DATABASE_TABLE + " (" + KEY_ROWID + " integer primary key autoincrement, "
+ KEY_VARIABLE +" text not null, " + KEY_VALUE + " text not null);";
/**
* Context
*/
private final Context mCtx;
private DatabaseHelper mDbHelper;
private SQLiteDatabase mDb;
/**
* Inner private class. Database Helper class for creating and updating database.
*/
private static class DatabaseHelper extends SQLiteOpenHelper {
DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
/**
* onCreate method is called for the 1st time when database doesn't exists.
*/
@Override
public void onCreate(SQLiteDatabase db) {
Log.i(TAG, "Creating DataBase: " + CREATE_VARIABLE_TABLE);
db.execSQL(CREATE_VARIABLE_TABLE);
}
/**
* onUpgrade method is called when database version changes.
*/
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
+ newVersion);
}
}
/**
* Constructor - takes the context to allow the database to be
* opened/created
*
* @param ctx the Context within which to work
*/
public DatabaseUtil(Context ctx) {
this.mCtx = ctx;
}
/**
* This method is used for creating/opening connection
* @return instance of DatabaseUtil
* @throws SQLException
*/
public DatabaseUtil open() throws SQLException {
mDbHelper = new DatabaseHelper(mCtx);
mDb = mDbHelper.getWritableDatabase();
return this;
}
/**
* This method is used for closing the connection.
*/
public void close() {
mDbHelper.close();
}
/**
* This method is used to create/insert new record Variable record.
* @param variable
* @param integer
* @return long
*/
public long createVariable(String variable, String grade ) {
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_VARIABLE, variable);
initialValues.put(KEY_VALUE, grade);
return mDb.insert(DATABASE_TABLE, null, initialValues);
}
/**
* This method will delete Variable record.
* @param rowId
* @return boolean
*/
public boolean deleteVariable(long rowId) {
return mDb.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0;
}
/**
* This method will return Cursor holding all the Variable records.
* @return Cursor
*/
public Cursor fetchAllVariables() {
return mDb.query(DATABASE_TABLE, new String[] {KEY_ROWID, KEY_VARIABLE,
KEY_VALUE}, null, null, null, null, null);
}
/**
* This method will return Cursor holding the specific Variable record.
* @param id
* @return Cursor
* @throws SQLException
*/
public Cursor fetchVariable(long id) throws SQLException {
Cursor mCursor =
mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID,
KEY_VARIABLE, KEY_VALUE}, KEY_ROWID + "=" + id, null,
null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
/**
* This method will update Variable record.
* @param id
* @param variable
* @param standard
* @return boolean
*/
public boolean updateVariable(int id, String variable, String standard) {
ContentValues args = new ContentValues();
args.put(KEY_VARIABLE, variable);
args.put(KEY_VALUE, standard);
return mDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + id, null) > 0;
}
* *} Тысяча двадцать-один