/**
* the actual implementation of query. This just does a straight attempt to query for up to {@link
* #requiredCount} flashcards from the table starting at the given id and level. This function
* will not attempt to wrap to the beginning of the table if insufficient results were found.
*
* <p>The results of this query will be added to the passed in {@link QueryResult} object.
*/
private void queryNoWrap(QueryResult qr, int level, int minId, int requiredCount) {
Cursor c = _curDB.rawQuery(SQL_QUERY2, new String[] {"" + minId});
if (c.moveToFirst()) {
do {
// extract fc from cursor and prepend to result chain.
Flashcard fc = cursorToFlashcard(c);
qr.head = Flashcard.Chain.append(qr.head, fc);
if (fc.getID() > qr.maxId) qr.maxId = fc.getID();
++qr.count;
} while (c.moveToNext() && qr.count < requiredCount);
}
c.close();
}
/** update the level and count for the given flashcard in the database. */
private void updateFlashcard(Flashcard fc) {
openDB();
_curDB.beginTransaction();
try {
// Delete old entry if any.
SQLiteStatement dStmt = getCompiledStatement(SQL_DELETE_FCS);
dStmt.bindString(1, fc.getLang1Str());
dStmt.execute();
// insert new state entry.
SQLiteStatement iStmt = getCompiledStatement(SQL_INSERT_FCS);
iStmt.bindString(1, fc.getLang1Str());
iStmt.bindLong(2, fc.getLevel());
iStmt.bindLong(3, fc.getRightGuessCount());
iStmt.execute();
_curDB.setTransactionSuccessful();
} catch (SQLException e) {
MsgDispatcher.sendMessageToUI(
MsgType.MSG_SHOW_ERROR_MSG, 0, 0, "unable to update id=" + fc.getID());
} finally {
_curDB.endTransaction();
}
// this flashcard is no longer used by anyone so release it.
fc.release();
}
/**
* update the display to show the current flashcard. Either the entire flashcard is shown or just
* the first half depending on the value of the {@link #_showEntireCard} variable.
*/
private void updateDisplay() {
Flashcard fc = FlashcardApp.getInstance().getCurrentFlashcard();
if (fc == null) {
return;
}
String lang1Text = fc.getLang1Str();
String lang2Text = "";
if (FlashcardApp.getInstance().isShowEntireCard()) {
lang2Text = fc.getLang2Str();
}
_topText.setText(StringFormatter.formatEnglishString(lang1Text));
_bottomText.setText(StringFormatter.formatSpanishString(lang2Text));
_statusText.setText(
"id: "
+ fc.getID()
+ " level: "
+ fc.getLevel()
+ " count: "
+ fc.getRightGuessCount());
}