public async Task <TodoItem> FindTodoItem(Guid id)
{
using (ReadModelDbContext db = _dbContextFactory.Invoke())
{
return(await db
.TodoItems
.AsNoTracking()
.Where(e => e.Id == id)
.SingleOrDefaultAsync());
}
}
public async Task <IEnumerable <TodoItem> > GetAllTodoItems()
{
using (ReadModelDbContext db = _dbContextFactory.Invoke())
{
return(await db
.TodoItems
.AsNoTracking()
.OrderByDescending(e => e.SequenceId)
.ToListAsync());
}
}
public async Task Handle(
Envelope <TodoItemDeleted> envelope,
CancellationToken cancellationToken)
{
TodoItemDeleted domainEvent = envelope.Message;
using (ReadModelDbContext db = _dbContextFactory.Invoke())
{
TodoItem todoItem = await db
.TodoItems
.Where(e => e.Id == domainEvent.SourceId)
.SingleAsync(cancellationToken);
db.TodoItems.Remove(todoItem);
await db.SaveChangesAsync(cancellationToken);
}
}
public async Task Handle(
Envelope <TodoItemCreated> envelope,
CancellationToken cancellationToken)
{
TodoItemCreated domainEvent = envelope.Message;
using (ReadModelDbContext db = _dbContextFactory.Invoke())
{
var todoItem = new TodoItem
{
Id = domainEvent.SourceId,
CreatedAt = domainEvent.RaisedAt,
Description = domainEvent.Description
};
db.TodoItems.Add(todoItem);
await db.SaveChangesAsync(cancellationToken);
}
}