public bool DeleteEvaluation(Evaluation_ evaluation)
 {
     using (MFDatabaseEntities moodFullDb = new MFDatabaseEntities())
     {
         try
         {
             int        evaluationID = Convert.ToInt32(evaluation.EvaluationId);
             Evaluation xe           = moodFullDb.Evaluations.Single(x => x.EvaluationId == evaluationID);
             moodFullDb.Evaluations.Remove(xe);
             moodFullDb.SaveChanges();
             return(true);
         }
         catch
         {
             return(false);
         }
     }
 }
 public bool EditEvaluation(Evaluation_ evaluation)
 {
     using (MFDatabaseEntities moodFullDb = new MFDatabaseEntities())
     {
         try
         {
             int        evaluationId = Convert.ToInt32(evaluation.EvaluationId);
             Evaluation xe           = moodFullDb.Evaluations.Single(x => x.EvaluationId == evaluationId);
             xe.UserId       = evaluation.UserId;
             xe.RestaurantId = evaluation.RestaurantId;
             xe.MoodRating   = evaluation.MoodRating;
             xe.Price        = evaluation.Price;
             xe.Experience   = evaluation.Experience;
             moodFullDb.SaveChanges();
             return(true);
         }
         catch
         {
             return(false);
         }
     };
 }
 public bool CreateEvaluation(Evaluation_ evaluation)
 {
     using (MFDatabaseEntities moodFullDb = new MFDatabaseEntities())
     {
         try
         {
             Evaluation xe = new Evaluation();
             xe.UserId       = evaluation.UserId;
             xe.RestaurantId = evaluation.RestaurantId;
             xe.MoodRating   = evaluation.MoodRating;
             xe.Price        = evaluation.Price;
             xe.Experience   = evaluation.Experience;
             moodFullDb.Evaluations.Add(xe);
             moodFullDb.SaveChanges();
             return(true);
         }
         catch
         {
             return(false);
         }
     }
 }