public int Delete(String table, String whereClause, params String[] whereArgs)
{
if (_readOnly)
{
throw new CouchbaseLiteException("Attempting to write to a readonly database", StatusCode.Forbidden);
}
Debug.Assert(!StringEx.IsNullOrWhiteSpace(table));
var t = Factory.StartNew(() =>
{
var resultCount = -1;
var command = GetDeleteCommand(table, whereClause, whereArgs);
try
{
var result = command.step();
if (result == SQLiteResult.ERROR)
{
throw new CouchbaseLiteException("Error deleting from table " + table, StatusCode.DbError);
}
resultCount = _writeConnection.changes();
if (resultCount < 0)
{
throw new CouchbaseLiteException("Failed to delete the records.", StatusCode.DbError);
}
}
catch (Exception ex)
{
LastErrorCode = raw.sqlite3_errcode(_writeConnection);
Log.E(TAG, "Error {0} when deleting from table {1}".Fmt(_writeConnection.extended_errcode(), table), ex);
throw;
}
finally
{
command.Dispose();
}
return(resultCount);
});
// NOTE.ZJG: Just a sketch here. Needs better error handling, etc.
var r = t.GetAwaiter().GetResult();
if (t.Exception != null)
{
//this is bad: should not arbitrarily crash the app
throw t.Exception;
}
return(r);
}
