public async Task Remove(string id, CancellationToken cancellationToken)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
try
{
DATABASE.Comment dbComment = await _context.Comments
.FirstOrDefaultAsync(x => x.Id == id);
if (dbComment == null)
{
throw new ServiceException("Invalid comment to remove");
}
_context.Comments.Remove(dbComment);
await _context.SaveChangesAsync(cancellationToken);
}
catch (Exception ex)
{
throw new ServiceException($"Failed to remove comment.", ex);
}
}
public async Task Edit(Comment comment, CancellationToken cancellationToken)
{
if (comment == null)
{
throw new ArgumentNullException(nameof(comment));
}
try
{
DATABASE.Comment dbComment = await _context.Comments
.FirstOrDefaultAsync(x => x.Id == comment.Id);
if (dbComment == null)
{
throw new ServiceException("Invalid comment to edit");
}
dbComment.Text = comment.Text;
dbComment.Date = DateTime.Now;
await _context.SaveChangesAsync(cancellationToken);
}
catch (Exception ex)
{
throw new ServiceException($"Failed to edit comment.", ex);
}
}
private DATABASE.Comment ConvertComment(Comment value)
{
var comment = new DATABASE.Comment
{
ByUserId = value.ByUserId,
Id = value.Id,
Text = value.Text,
Date = value.Date,
};
return(comment);
}
private Comment ConvertComment(DATABASE.Comment value, string userName = null)
{
var comment = new Comment
{
ByUserId = value.ByUserId,
Id = value.Id,
Text = value.Text,
Date = value.Date,
ByUserName = userName,
};
return(comment);
}
public async Task Create(Comment comment, CancellationToken cancellationToken = default)
{
if (comment == null)
{
throw new ArgumentNullException(nameof(comment));
}
try
{
DATABASE.Comment dbComment = ConvertComment(comment);
await _context.Comments.AddAsync(dbComment, cancellationToken);
await _context.SaveChangesAsync(cancellationToken);
}
catch (Exception ex)
{
throw new ServiceException($"Failed to create comment.", ex);
}
}
public async Task <Comment> Get(string id, CancellationToken cancellationToken)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
try
{
DATABASE.Comment dbComment = await _context.Comments
.FirstOrDefaultAsync(x => x.Id == id);
if (dbComment == null)
{
throw new ServiceException("Invalid comment to get");
}
return(ConvertComment(dbComment));
}
catch (Exception ex)
{
throw new ServiceException($"Failed to get comment.", ex);
}
}
