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- public class DatabaseHelper extends SQLiteOpenHelper {
- private static final String DATABASE_NAME = "FYPSQLApplicationA.db";
- private static int DATABASE_VERSION = 3;
- private SQLiteDatabase SQLITEDATABASE;
- /*Users Table*/
- public static final String USERS = "USERS";
- // public static final String COLUMN_ID = "USER_ID";
- public static final String COLUMN_USERNAME = "USERNAME";
- public static final String COLUMN_PASSWORD = "PASSWORD";
- public static final String COLUMN_NAME = "NAME";
- public static final String COLUMN_EMAIL = "EMAIL";
- public static final String COLUMN_PHRASE = "PHRASE";
- private static final String CREATE_USERS = "CREATE TABLE " + USERS +
- "( " +
- COLUMN_USERNAME + " TEXT PRIMARY KEY , " +
- COLUMN_PASSWORD + " TEXT NOT NULL , " +
- COLUMN_NAME + " TEXT , " +
- COLUMN_EMAIL + " TEXT , " +
- COLUMN_PHRASE + " TEXT NOT NULL );";
- // MAY INCLUDE A USER ID COLUMN COLUMN_ID + " INT NOT NULL , " +
- /*Topics Table*/
- public static final String TOPICS = "TOPICS";
- public static final String TOPIC_ID = "TOPIC_ID";
- public static final String TOPIC_NAME = "TOPIC_NAME";
- public static final String CHAPTER_ID = "CHAPTER_ID";
- public static final String CHAPTER_NAME = "CHAPTER_NAME";
- private static final String CREATE_TOPICS = " CREATE TABLE " + TOPICS +
- " ( "
- + TOPIC_ID + " INT PRIMARY KEY , "
- + TOPIC_NAME + " TEXT NOT NULL , "
- + CHAPTER_ID + " INT NOT NULL , "
- + CHAPTER_NAME + " TEXT NOT NULL " + ");";
- /*Results Table*/
- private static final String RESULTS = "RESULTS";
- // private static final String TEST_COLUMN_USERNAME = "USERNAME";
- private static final String COLUMN_SCORE = "SCORE";
- // private static final String COLUMN_TIMES_TAKEN = "TIMES_TAKEN";
- private static final String COLUMN_TIMESTAMP = "TIMESTAMP";
- private static final String CREATE_RESULTS = " CREATE TABLE " + RESULTS +
- " ( " +
- COLUMN_USERNAME + " TEXT NOT NULL , " +
- TOPIC_ID + " INT NOT NULL , " +
- COLUMN_SCORE + " SCORE INT NOT NULL , " +
- COLUMN_TIMESTAMP + " TIMESTAMP TEXT NOT NULL , " +
- "FOREIGN KEY(TOPIC_ID) REFERENCES TOPICS(TOPIC_ID) " +
- "FOREIGN KEY(USERNAME) REFERENCES USERS(USERNAME) " + "); ";
- /*Questions Table*/
- private static final String QUESTIONS = "QUESTIONS";
- private static final String QUESTIONS_ID = "QUESTION_ID";
- private static final String QUESTIONTEXT = "QUESTION";
- private static final String ANSWER_A = "ANSWER_A"; //option a
- private static final String ANSWER_B = "ANSWER_B"; //option b
- private static final String ANSWER_C = "ANSWER_C"; //option c
- private static final String QUESTION_ANSWER = "ANSWER"; //correct option
- private static final String CREATE_QUESTIONS = " CREATE TABLE " +
- QUESTIONS + " ( " +
- TOPIC_ID + " INT NOT NULL , " +
- QUESTIONS_ID + " INT PRIMARY KEY , " +
- QUESTIONTEXT + " TEXT NOT NULL , " +
- ANSWER_A + " TEXT NOT NULL , " +
- ANSWER_B + " TEXT NOT NULL , " +
- ANSWER_C + " TEXT NOT NULL , " +
- QUESTION_ANSWER + " INT NOT NULL , " +
- "FOREIGN KEY(TOPIC_ID) REFERENCES TOPICS(TOPIC_ID) " + "); ";
- private static Context context;
- public DatabaseHelper(Context c, String name, SQLiteDatabase.CursorFactory factory, int version) {
- super(c, name, factory, version);
- }
- public DatabaseHelper(Context c) {
- super(context = c, DATABASE_NAME, null, DATABASE_VERSION);
- }
- @Override
- public void onCreate(SQLiteDatabase db) {
- SQLITEDATABASE = db;
- db.execSQL(CREATE_USERS);
- db.execSQL(CREATE_TOPICS);
- db.execSQL(CREATE_QUESTIONS);
- db.execSQL(CREATE_RESULTS);
- addQuestions();
- addTopics();
- this.SQLITEDATABASE = db;
- }
- @Override
- public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
- // Drop older table if existed
- String queryuser = "DROP TABLE IF EXISTS " + USERS;
- String queryquestion = "DROP TABLE IF EXISTS " + QUESTIONS;
- String querytopic = "DROP TABLE IF EXISTS " + TOPICS;
- String queryresult = "DROP TABLE IF EXISTS " + RESULTS;
- db.execSQL(queryuser);
- db.execSQL(queryquestion);
- db.execSQL(querytopic);
- db.execSQL(queryresult);
- // Create tables again
- onCreate(db);
- }
- public void insertScore (ScoreDetails SD) {
- SQLITEDATABASE = this.getWritableDatabase();
- ContentValues values = new ContentValues();
- values.put(COLUMN_USERNAME, SD.GetUsername());
- values.put(TOPIC_ID, SD.GetTopic());
- values.put(COLUMN_SCORE, SD.GetScore());
- values.put(COLUMN_TIMESTAMP, SD.getCurrentTimeStamp());
- SQLITEDATABASE.insert(RESULTS, null, values);
- SQLITEDATABASE.close();
- }
- // Getting All Contacts
- public List<ScoreDetails> getAllResults() {
- List<ScoreDetails> ResultList = new ArrayList<ScoreDetails>();
- // Select All Query
- GlobalVariables GlobalUser = new GlobalVariables();
- String selectQuery = "SELECT * FROM " + RESULTS
- + " WHERE USERNAME = ' " + GlobalUser.GetUsername() + " ' ";
- SQLiteDatabase db = this.getWritableDatabase();
- Cursor cursor = db.rawQuery(selectQuery, null);
- /* Cursor cursor = db.rawQuery("SELECT * FROM RESULTS WHERE " +
- " USERNAME = " + GlobalUser.GetUsername(), null);*/
- // looping through all rows and adding to list
- if (cursor.moveToFirst()) {
- do {
- ScoreDetails SD = new ScoreDetails();
- SD.SetUsername(cursor.getString(0));
- SD.SetTopic(Integer.parseInt(cursor.getString(1)));
- SD.SetScore(Integer.parseInt(cursor.getString(2)));
- SD.SetCurrentTimeStamp(cursor.getString(3));
- String name = cursor.getString(0) +"n"+ cursor.getString(1) +"n"+ cursor.getString(2)
- +"n"+ cursor.getString(3);
- Display_results.ArrayofResults.add(name);
- // Adding contact to list
- ResultList.add(SD);
- } while (cursor.moveToNext());
- }
- // return contact list
- return ResultList;
- }
- }
- public class Display_results extends AppCompatActivity {
- private ListView gridView;
- public static ArrayList<String> ArrayofResults = new ArrayList<String>();
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.display_results_layout);
- DatabaseHelper db = new DatabaseHelper(this);
- List<ScoreDetails> results = db.getAllResults();
- for (ScoreDetails SD : results) {
- String log = "Id: "+ SD.GetUsername()
- +" ,Name: " + SD.GetTopic()
- + " ,Phone: " + SD.GetScore()
- + " ,Phone: " + SD.getCurrentTimeStamp() ;
- // Writing Contacts to log
- Log.d("Name: ", log);
- }
- /*db.close();*/
- gridView = (ListView) findViewById(R.id.contentlist);
- ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
- android.R.layout.simple_list_item_1, ArrayofResults);
- gridView.setAdapter(adapter);
- gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
- public void onItemClick(AdapterView<?> parent, View v,
- int position, long id) {
- Toast.makeText(getApplicationContext(),
- ((TextView) v).getText(), Toast.LENGTH_SHORT).show();
- }
- });
- }
- /*
- public void onPause() {
- super.onPause();
- finish();
- }*/
- }
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