public override void Save(LinearRegressionDbContext db)
{
if (this.Entity is null)
{
this.Entity = new Model.Comment(this.AnalysisInformationId, this.User, this.Content);
}
else
{
this.Entity.Content = this.Content;
}
if (db.CommentSet.Any(c => c.Id == this.Entity.Id))
{
db.CommentSet.Update(this.Entity);
}
else
{
db.CommentSet.Add(this.Entity);
}
db.SaveChanges();
//Adding the comment after saving it so the id is correct.
var analysisInformation = db.AnalysisInformationSet.Find(this.AnalysisInformationId);
analysisInformation.AddComment(this.Entity);
db.AnalysisInformationSet.Update(analysisInformation);
db.SaveChanges();
this.Id = this.Entity.Id;
}
public override void Delete(LinearRegressionDbContext db)
{
if (this.Id != 0)
{
db.CommentSet.Remove(this.Entity);
var analysisInformation = db.AnalysisInformationSet.Find(Entity.AnalysisInformationID);
analysisInformation.RemoveComment(this.Entity);
db.SaveChanges();
}
else
{
throw new InvalidOperationException("Unsaved data cannot be deleted.");
}
}