/// <summary>
 /// Initializes a new instance of the <see cref="LetterTemplateLogic"/> class.
 /// </summary>
 /// <param name="letterTemplateRepository">The letter template repository.</param>
 public LetterTemplateLogic(ILetterTemplateRepository letterTemplateRepository)
 {
     if (letterTemplateRepository != null)
     {
         _letterTemplateRepository = letterTemplateRepository;
     }
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="LetterTemplateLogic"/> class.
 /// </summary>
 /// <param name="connectionString">The connection string.</param>
 public LetterTemplateLogic(string connectionString)
 {
     _letterTemplateRepository = Factory.CreateInstance <ILetterTemplateRepository>(connectionString, true);
 }