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use order-by so don't have to iterate over results

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This assumes, as seems to be the case, that rowid is assigned increasing
order.
This commit is contained in:
Eric House 2020-09-05 17:47:59 -07:00
parent fbc8a62a13
commit 3510268752
1 changed files with 9 additions and 13 deletions
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22
xwords4/android/app/src/main/java/org/eehouse/android/xw4/DBUtils.java
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@ -2265,22 +2265,18 @@ public class DBUtils {
private static String getStringForSyncSel( SQLiteDatabase db, String selection )
{
String result = null;
String[] columns = { ROW_ID, DBHelper.VALUE };
Cursor cursor = DBHelper.query( db, TABLE_NAMES.PAIRS, columns, selection );
// Log.d( TAG, "getStringForSyncSel(selection=%s)", selection );
boolean tooMany = BuildConfig.DEBUG && 1 < cursor.getCount();
String[] columns = { DBHelper.VALUE, };
// If there are multiple matches, we want to use the newest. At least
// that's the right move where a devID's key has been changed with
// each upgrade.
long prevRow = 0;
while ( cursor.moveToNext() ) {
long row = cursor.getLong(cursor.getColumnIndex(ROW_ID));
if ( row > prevRow ) {
result = cursor.getString( cursor.getColumnIndex( DBHelper.VALUE ) );
prevRow = row;
}
String orderBy = ROW_ID + " DESC";
Cursor cursor = DBHelper.query( db, TABLE_NAMES.PAIRS, columns, selection, orderBy );
// Log.d( TAG, "getStringForSyncSel(selection=%s)", selection );
boolean tooMany = BuildConfig.DEBUG && 1 < cursor.getCount();
if ( cursor.moveToNext() ) {
result = cursor.getString( cursor.getColumnIndex(DBHelper.VALUE) );
}
cursor.close();