public async Task <BookShopState> GetOrCreateBookShopState(int id)
{
BookShopState bookShopState = await Set <BookShopState>()
.FirstOrDefaultAsync(bss => bss.Id == id);
if (bookShopState == null)
{
bookShopState = new BookShopState();
await Set <BookShopState>()
.AddAsync(bookShopState);
await SaveChangesAsync();
}
return(bookShopState);
}
public async Task UpdateBookShopState(BookShopState bookShopState)
{
Set <BookShopState>().Update(bookShopState);
await SaveChangesAsync();
}
