public bool Postuser_book(user_book user_book)
{
bookEntities ctx = new bookEntities();
ctx.user_book.Add(user_book);
try
{
ctx.SaveChanges();
}
catch (DbUpdateException)
{
var like_book = ctx.user_book.Where(x => x.username == user_book.username && x.bookid == user_book.bookid && x.type == user_book.type);
if (like_book != null)
{
return(false);
}
else
{
throw;
}
}
return(true);
}
public bool Postcomment(comment comment)
{
bookEntities ctx = new bookEntities();
ctx.comment.Add(comment);
ctx.SaveChanges();
return(true);
}
public bool SignUp(user user)
{
user.password = Share.Class1.EncodeBase64(user.password);
ctx.user.Add(user);
try
{
ctx.SaveChanges();
}
catch (DbUpdateException)
{
if (userExists(user.username))
{
return(false);
}
else
{
throw;
}
}
return(true);
}
public bool Deletecomment(comment comment)
{
bookEntities ctx = new bookEntities();
comment c = ctx.comment.Find(comment.commentid);
if (c == null)
{
return(false);
}
ctx.comment.Remove(c);
ctx.SaveChanges();
return(true);
}
public bool AddScore(score score)
{
ctx.score.Add(score);
try
{
ctx.SaveChanges();
}
catch (DbUpdateException)
{
if (scoreExists(score.username))
{
return(false);
}
else
{
throw;
}
}
return(true);
}