/// <summary>
/// Adds the given synonyms to the thesaurus.
/// </summary>
/// <param name="synonyms">The synonyms to add.</param>
public void AddSynonyms(IEnumerable <string> synonyms)
{
HashSet <int> foundSynonymGroupIDs = new HashSet <int>();
List <string> unrecognizedWords = new List <string>();
foreach (string word in synonyms)
{
var wordsQuery = dbContext.Words.Where(w => w.Characters == word);
if (wordsQuery.Any())
{
foundSynonymGroupIDs.Add(wordsQuery.Select(p => p.SynonymGroupID).First());
continue;
}
else
{
unrecognizedWords.Add(word);
}
}
SynonymGroup synonymGroup = GetSynonymGroup(foundSynonymGroupIDs);
foreach (string word in unrecognizedWords)
{
var newWord = new Word
{
Characters = word,
SynonymGroup = synonymGroup
};
dbContext.Words.Add(newWord);
}
dbContext.SaveChanges();
}
/// <summary>
/// Maps synonyms with a meaning-ID and adds them to the MeaningGroup table.
/// It also adds all synonyms to the Word-table if not already added. Only a-z and 0-9 are allowed.
/// </summary>
public void AddSynonyms(IEnumerable <string> synonyms)
{
try
{
if (synonyms == null)
{
throw new ArgumentNullException("The 'synonyms' argument has a null-value");
}
if (synonyms.Count() < 2)
{
throw new Exception("Requires at least two words, to be able to store synonyms");
}
// The meaningID that will be mapped with the synonyms
int nextMeaningID = 1;
// Generates a new meaningID-value if there are already stored MeaningGroups
if (context.MeaningGroups.Any())
{
nextMeaningID = context.MeaningGroups.Max(p => p.MeaningID) + 1;
}
foreach (string synonym in synonyms)
{
Regex onlyLettersAndDigits = new Regex("^[0-9a-z_]*$");
string synonymLowerCase = synonym.ToLower();
// Make sure that the synonym does not contain illegal characters
if (!onlyLettersAndDigits.IsMatch(synonymLowerCase))
{
// words with illegal characters
throw new Exception($"The synonym {synonymLowerCase} has illegal characters");
}
if (context.Words.Find(synonymLowerCase) == null)
{
context.Words.Add(new Word
{
Name = synonymLowerCase,
});
}
// Maps the synonyms with the meaningID
context.MeaningGroups.Add(new MeaningGroup
{
WordName = synonymLowerCase,
MeaningID = nextMeaningID
});
}
// Locks the database while editing
lock (dbLock)
{
// Stores the synonyms with the meaningID
context.SaveChanges();
}
}
catch (Exception error)
{
Console.WriteLine(error.ToString());
}
}