public void CreateComment(Comment comment)
{
if(comment == null)
{
throw new ArgumentNullException("comment","comment is null");
}
_dbContext.Comments.Add(comment);
}
/// <summary>
/// Create a new comment and store it.
/// </summary>
/// <param name="value">Value of the comment</param>
/// <param name="date">Date when the comment was written</param>
/// <param name="author">Author who wrote the comment</param>
/// <param name="publication">Publication where the comment belongs</param>
public void CreateComment(string value, DateTime date, User author, Publication publication)
{
if (!ValidContent(value))
throw new Exception("El contenido no puede estar vacio ni ser mayor a 500 caracteres.");
if (publication == null)
throw new Exception("La publicación no es válida.");
Comment comment = new Comment(date, value, publication, author);
// Store the new comment
dataPublications.AddComment(publication, comment);
}
/// <summary>
/// Add a comment into the form
/// </summary>
/// <param name="c">Comment to add</param>
private void AddCommentIntoPanel(Comment c)
{
// Create the panel object with the publication info inside
Panel newComment = CreatePanelComment(c.Value, c.Author.CompleteName, c.Date);
// Insert the publication panel into the flow layout panel in the form
this.flowLayoutPanel.Controls.Add(newComment);
}
// *************************** //
// COMMENTS related COMMENTS //
// *************************** //
/// <summary>
/// Create a new comment for a specific publication.
/// </summary>
/// <param name="value">Value of the comment</param>
/// <param name="date">Date when the publication has been written</param>
/// <param name="publication">Publication that belongs the comment</param>
/// <param name="author">User who wrote the comment</param>
public void CreateComment(string value, DateTime date, Publication publication, User author)
{
if (!ValidContent(value))
throw new Exception("El contenido no puede estar vacio ni ser mayor a 500 caracteres.");
if (author == null)
throw new Exception("El usuario no pudo ser identificado.");
if (publication == null)
throw new Exception("La publicación no pudo ser identificada.");
Comment c = new Comment(date, value, publication.IdPublication, author.IdUser);
dataComments.Add(c);
}
public bool CreateComment(Comment comment)
{
var queryString =
"INSERT INTO [dbo].comments ([dbo].comments.comid, [dbo].comments.createdtime, [dbo].comments.accountid, [dbo].comments.postid, [dbo].comments.name, [dbo].comments.text) " +
"VALUES (@comid, @createdtime, @accountid, @postid, @name, @text);";
using (SqlConnection connection = new SqlConnection(_connectionString))
{
var command = new SqlCommand(queryString, connection);
command.Parameters.AddWithValue("comid", comment.ComId);
command.Parameters.AddWithValue("createdtime", comment.CreatedTime);
command.Parameters.AddWithValue("accountid", comment.AccountId);
command.Parameters.AddWithValue("postid", comment.PostId);
command.Parameters.AddWithValue("name", comment.AuthorName);
command.Parameters.AddWithValue("text", comment.Text);
try
{
connection.Open();
command.ExecuteNonQuery();
}
catch (Exception e)
{
var stack = e.StackTrace;
throw new Exception();
}
return true;
}
}
private void CopyCommentsProperties(Comment fromComment, Comment toComment)
{
if(fromComment == null)
{
throw new ArgumentNullException("fromComment");
}
if(toComment == null)
{
throw new ArgumentNullException("toComment");
}
toComment.CreateDate = fromComment.CreateDate;
toComment.PresentationId = fromComment.PresentationId;
toComment.Text = fromComment.Text;
toComment.User.UserId = fromComment.User.UserId;
}
public void UpdateComment(Comment comment)
{
if (comment == null)
{
throw new ArgumentNullException("comment","comment is null");
}
Comment existComment = _dbContext.Comments.FirstOrDefault(x => x.CommentId == comment.CommentId);
if(existComment == null)
{
throw new InvalidDataException("This comment doesn't exist in current data base");
}
if (comment != existComment)
{
CopyCommentsProperties(comment, existComment);
}
_dbContext.Entry(existComment).State = EntityState.Modified;
}
public void DeleteComment(Comment comment)
{
if(comment == null)
{
throw new ArgumentNullException("comment");
}
var existComment = _dbContext.Comments.FirstOrDefault(x => x.CommentId == comment.CommentId);
if(existComment != null)
{
_dbContext.Comments.Remove(existComment);
}
else
{
throw new InvalidDataException("This comment doesn't exist in current data base");
}
}
