public async void ToLike(int num_of_likes, int bookId)
{
UserContext user_db = new UserContext();
var userName = User.Identity.GetUserName();
User user = await user_db.Users.FirstOrDefaultAsync(x => x.Login == userName); // UserId found
LikesContext likes_db = new LikesContext();
var real_num_of_likes = likes_db.Likes.ToArray().Length;
Books b = db.Books.FirstOrDefault(b => b.id == bookId);
// если в бд лайков не найден ни один лайк от пользователя
Likes like = new Likes()
{
id = (++real_num_of_likes),
book_id = bookId,
user_id = user.Id
};
likes_db.Likes.Add(like);
b.likes = num_of_likes;
await db.SaveChangesAsync();
await likes_db.SaveChangesAsync();
}
public async Task <ActionResult <Like> > CreateLike([FromBody] Like like)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (await context.Likes.FirstOrDefaultAsync(l => like.Equals(l)) != null)
{
return(Conflict());
}
await context.Likes.AddAsync(like);
await context.SaveChangesAsync();
return(like);
}
public async void ToUnLike(int num_of_likes, int bookId)
{
UserContext user_db = new UserContext();
var userName = User.Identity.GetUserName();
User user = await user_db.Users.FirstOrDefaultAsync(x => x.Login == userName); // UserId found
LikesContext likes_db = new LikesContext();
var real_num_of_likes = likes_db.Likes.ToArray().Length;
Books b = db.Books.FirstOrDefault(b => b.id == bookId);
var like_to_remove = likes_db.Likes.FirstOrDefault(i => (i.user_id == user.Id) && (i.book_id == bookId));
likes_db.Remove(like_to_remove);
b.likes = --num_of_likes;
await db.SaveChangesAsync();
await likes_db.SaveChangesAsync();
}
public async void UpdateBooksLikes(int number, int bookId)
{
UserContext user_db = new UserContext();
var userName = User.Identity.GetUserName();
User user = await user_db.Users.FirstOrDefaultAsync(x => x.Login == userName); // UserId found
LikesContext likes_db = new LikesContext();
var num_of_likes = likes_db.Likes.ToArray().Length;
Books b = db.Books.FirstOrDefault(b => b.id == bookId);
if (likes_db.Likes.FirstOrDefault(i => (i.user_id == user.Id) && (i.book_id == bookId)) == null)
{
// если в бд лайков не найден ни один лайк от пользователя
Likes like = new Likes()
{
id = (++num_of_likes),
book_id = bookId,
user_id = user.Id
};
likes_db.Likes.Add(like);
b.likes = number;
}
else
{
// в бд лайков есть лайк от пользователя на заданную книгу
var like_to_remove = likes_db.Likes.FirstOrDefault(i => (i.user_id == user.Id) && (i.book_id == bookId));
likes_db.Remove(like_to_remove);
//Books b = db.Books.FirstOrDefault(b => b.id == bookId);
b.likes = (number - 2);
}
await db.SaveChangesAsync();
await likes_db.SaveChangesAsync();
}