public void Handle(SavedNewDraftLessonEvent @event)
{
using (var db = new DisciturContext())
{
int userId = _identityMapper.GetModelId <User>(@event.AuthorId);
User _user = db.Users.Find(userId);
Lesson lesson = new Lesson();
lesson.Title = @event.Title;
lesson.Discipline = @event.Discipline;
lesson.School = @event.School;
lesson.Classroom = @event.Classroom;
lesson.Author = _user;
lesson.UserId = _user.UserId;
lesson.Content = @event.Content;
lesson.Conclusion = @event.Conclusion;
lesson.PublishDate = @event.CreationDate;
lesson.CreationDate = @event.CreationDate;
UpdateLessonArchFields(lesson, _user.UserName, @event.CreationDate, @event.Version);
//lesson.LastModifDate = @event.CreationDate;
//lesson.LastModifUser = _user.UserName;
//lesson.Vers = 1;
lesson.RecordState = Constants.RECORD_STATE_ACTIVE;
// Create FeedBacks Collection
if (@event.FeedBacks.ContainsKey(EntityStatus.A))
{
@event.FeedBacks[EntityStatus.A].ToList()
.ForEach(feedback => {
LessonFeedback fb = new LessonFeedback()
{
Feedback = feedback.Feedback,
Nature = feedback.Nature,
LessonFeedbackGuid = feedback.Id
};
lesson.FeedBacks.Add(fb);
});
}
// Create Tags Collection
if (@event.Tags.ContainsKey(EntityStatus.A))
{
@event.Tags[EntityStatus.A].ToList()
.ForEach(tag =>
{
LessonTag t = new LessonTag()
{
LessonTagName = tag.LessonTagName
};
lesson.Tags.Add(t);
});
}
db.Lessons.Add(lesson);
db.SaveChanges();
//Ids mapping
_identityMapper.Map <Lesson>(lesson.LessonId, @event.Id);
if (lesson.FeedBacks.Count > 0)
{
lesson.FeedBacks.ToList()
.ForEach(feedback => _identityMapper.Map <LessonFeedback>(feedback.LessonFeedbackId, feedback.LessonFeedbackGuid));
}
}
}
public void Handle(LessonMementoPropagatedEvent @event)
{
using (var db = new DisciturContext())
{
int itemId = _identityMapper.GetModelId <Lesson>(@event.Memento.Id);
if (itemId.Equals(0))
{
int userId = _identityMapper.GetModelId <User>(@event.Memento.AuthorId);
User _user = db.Users.Find(userId);
Lesson lesson = new Lesson();
lesson.Title = @event.Memento.Title;
lesson.Discipline = @event.Memento.Discipline;
lesson.School = @event.Memento.School;
lesson.Classroom = @event.Memento.Classroom;
lesson.Author = _user;
lesson.UserId = _user.UserId;
lesson.Content = @event.Memento.Content;
lesson.Conclusion = @event.Memento.Conclusion;
lesson.PublishDate = @event.Memento.CreationDate;
lesson.CreationDate = @event.Memento.CreationDate;
UpdateLessonArchFields(lesson, _user.UserName, @event.Memento.CreationDate, @event.Memento.Version);
//lesson.LastModifDate = @event.CreationDate;
//lesson.LastModifUser = _user.UserName;
//lesson.Vers = 1;
lesson.RecordState = Constants.RECORD_STATE_ACTIVE;
// Create FeedBacks Collection
@event.Memento.FeedBacks.ToList()
.ForEach(feedback => {
LessonFeedback fb = new LessonFeedback()
{
Feedback = feedback.Feedback,
Nature = feedback.Nature,
LessonFeedbackGuid = feedback.Id
};
lesson.FeedBacks.Add(fb);
});
// Create Tags Collection
@event.Memento.Tags.ToList()
.ForEach(tag =>
{
LessonTag t = new LessonTag()
{
LessonTagName = tag.LessonTagName
};
lesson.Tags.Add(t);
});
db.Lessons.Add(lesson);
db.SaveChanges();
//Ids mapping
_identityMapper.Map <Lesson>(lesson.LessonId, @event.Memento.Id);
if (lesson.FeedBacks.Count > 0)
{
lesson.FeedBacks.ToList()
.ForEach(feedback => _identityMapper.Map <LessonFeedback>(feedback.LessonFeedbackId, feedback.LessonFeedbackGuid));
}
// Create Ratings Collection
List <int> ratingsList = new List <int>();
@event.Memento.Ratings.ToList()
.ForEach(r =>
{
int authorId = _identityMapper.GetModelId <User>(r.UserId);
User author = db.Users.Find(userId);
ratingsList.Add(r.Rating);
LessonRating rating = new LessonRating()
{
LessonId = lesson.LessonId,
UserId = authorId,
Author = author,
Rating = r.Rating,
Content = r.Content ?? string.Empty,
CreationDate = r.CreationDate,
LastModifDate = r.LastModifDate,
LastModifUser = r.LastModifUser,
Vers = r.Vers,
RecordState = Constants.RECORD_STATE_ACTIVE
};
// Add new Lesson's Rating
db.LessonRatings.Add(rating);
db.SaveChanges();
_identityMapper.Map <LessonRating>(rating.Id, r.Id);
});
lesson.Rate = ratingsList.Count > 0 ? Math.Max((int)Math.Round(ratingsList.Average()), 1) : 0;
// Create Comments Collection
@event.Memento.Comments.ToList()
.ForEach(c =>
{
// get read-model Ids (ID-maps)
int _userId = _identityMapper.GetModelId <User>(c.AuthorId);
int?parentId = c.ParentId == null ? null : (int?)_identityMapper.GetModelId <LessonComment>(c.ParentId.Value);
// get involved read-model entities
User author = db.Users.Find(userId);
// Create new Read-Model Lesson's Comment
LessonComment comment = new LessonComment()
{
LessonId = lesson.LessonId,
Content = c.Content,
CreationDate = c.CreationDate,
Date = c.Date,
LastModifDate = c.Date,
Level = c.Level,
ParentId = parentId,
Vers = c.Vers,
RecordState = Constants.RECORD_STATE_ACTIVE,
UserId = _userId,
Author = author,
LastModifUser = author.UserName
};
db.LessonComments.Add(comment);
db.SaveChanges();
// Map new IDs
// NOTE: Comment is NOT and AR, but it's mapped with it's own Id-map for compatibility with existant read-model
_identityMapper.Map <LessonComment>(comment.Id, c.Id);
});
// Persist changes
db.Entry(lesson).State = EntityState.Modified;
db.SaveChanges();
}
// otherwise it could be used for maintenance purposes
}
}
public void Handle(SavedDraftLessonEvent @event)
{
using (var db = new DisciturContext())
{
int lessonId = _identityMapper.GetModelId <Lesson>(@event.Id);
Lesson lesson = db.Lessons.Where(l => l.LessonId.Equals(lessonId) &&
//l.Vers.Equals(@event.Version) &&
l.RecordState.Equals(Constants.RECORD_STATE_ACTIVE))
.First();
if (lesson.Title != @event.Title)
{
lesson.Title = @event.Title;
}
if (lesson.Discipline != @event.Discipline)
{
lesson.Discipline = @event.Discipline;
}
lesson.School = @event.School;
lesson.Classroom = @event.Classroom;
lesson.Discipline = @event.Discipline;
lesson.Content = @event.Content;
lesson.Conclusion = @event.Conclusion;
lesson.PublishDate = @event.ModificationDate;
// Update FeedBacks Collection
if (@event.FeedBacks.ContainsKey(EntityStatus.A))
{
@event.FeedBacks[EntityStatus.A].ToList()
.ForEach(feedback => {
LessonFeedback fb = new LessonFeedback()
{
Feedback = feedback.Feedback,
Nature = feedback.Nature,
LessonFeedbackGuid = feedback.Id
};
lesson.FeedBacks.Add(fb);
});
}
if (@event.FeedBacks.ContainsKey(EntityStatus.M))
{
@event.FeedBacks[EntityStatus.M].ToList()
.ForEach(feedback =>
{
var item = lesson.FeedBacks.Single(f => f.LessonFeedbackId.Equals(_identityMapper.GetModelId <LessonFeedback>(feedback.Id)));
item.Feedback = feedback.Feedback;
});
}
if (@event.FeedBacks.ContainsKey(EntityStatus.C))
{
@event.FeedBacks[EntityStatus.C].ToList()
.ForEach(feedback =>
{
var item = lesson.FeedBacks.Single(f => f.LessonFeedbackId.Equals(_identityMapper.GetModelId <LessonFeedback>(feedback.Id)));
lesson.FeedBacks.Remove(item);
db.LessonFeedbacks.Remove(item);
});
}
// Update Tags Collection
if (@event.Tags.ContainsKey(EntityStatus.A))
{
@event.Tags[EntityStatus.A].ToList()
.ForEach(tag => {
LessonTag t = new LessonTag()
{
LessonTagName = tag.LessonTagName
};
lesson.Tags.Add(t);
});
}
if (@event.Tags.ContainsKey(EntityStatus.C))
{
@event.Tags[EntityStatus.C].ToList()
.ForEach(tag =>
{
var item = lesson.Tags.Single(t => t.LessonTagName.Equals(tag.LessonTagName));
lesson.Tags.Remove(item);
db.LessonTags.Remove(item);
});
}
UpdateLessonArchFields(lesson, lesson.LastModifUser, @event.ModificationDate, @event.Version);
db.Entry(lesson).State = EntityState.Modified;
db.SaveChanges();
if (lesson.FeedBacks.Count > 0)
{
lesson.FeedBacks.ToList()
.ForEach(feedback => {
if (@event.FeedBacks.ContainsKey(EntityStatus.A) && @event.FeedBacks[EntityStatus.A].Any(f => f.Id.Equals(feedback.LessonFeedbackGuid)))
{
_identityMapper.Map <LessonFeedback>(feedback.LessonFeedbackId, feedback.LessonFeedbackGuid);
}
});
}
}
}
