public bool SaveWordsNewlyAddedInAdminPanel(List <WordPairForDataGridView> addedWordPairsForDataGridView,
DateTime modificationTime)
{
IEnumerable <WordPair> addedWordPairs = addedWordPairsForDataGridView.Select(MapToDataGridViewStructure);
addedWordPairs = addedWordPairs.Select(w => PrepareAddedWords(w, modificationTime));
int addedWordPairsCount = _wordsRepository.InsertMultipleWordPairs(addedWordPairs);
return(addedWordPairsCount == addedWordPairsForDataGridView.Count);
}