public async Task <IActionResult> AddToFavorite(int?id, string control)
{
if (id == null)
{
return(NotFound());
}
Subject subject = await _db.Subjects.FindAsync(id);
if (subject == null)
{
return(NotFound());
}
if (User.Identity.IsAuthenticated)
{
User user = await _userManager.GetUserAsync(User);
SavedSubject savedSubject = new SavedSubject
{
User = user,
Subject = subject
};
_db.SavedSubjects.Add(savedSubject);
await _db.SaveChangesAsync();
}
else
{
string cookie = Request.Cookies["subject"];
List <Subject> subjects;
if (cookie == null)
{
subjects = new List <Subject>();
}
else
{
subjects = JsonConvert.DeserializeObject <List <Subject> >(cookie);
}
subjects.Add(subject);
string favorite = JsonConvert.SerializeObject(subjects);
Response.Cookies.Append("subject", favorite, new CookieOptions {
MaxAge = TimeSpan.FromDays(14)
});
}
if (control == "Bookmark")
{
return(RedirectToAction("Bookmark", "Course"));
}
if (control == "Subject")
{
return(RedirectToAction("Subject", new { id = subject.CourseId }));
}
return(RedirectToAction("Index", control));
}
public async Task <IActionResult> RemoveFromFavorite(int?id, string control)
{
if (id == null)
{
return(NotFound());
}
if (User.Identity.IsAuthenticated)
{
User user = await _userManager.GetUserAsync(User);
SavedSubject savedSubject = _db.SavedSubjects.FirstOrDefault(s => s.SubjectId == id && s.User == user);
_db.SavedSubjects.Remove(savedSubject);
await _db.SaveChangesAsync();
if (Request.Cookies["subject"] != null)
{
List <Subject> subjects = JsonConvert.DeserializeObject <List <Subject> >(Request.Cookies["subject"]);
if (subjects.Any(s => s.Id == id))
{
subjects.Remove(subjects.FirstOrDefault(s => s.Id == id));
}
;
if (subjects.Count == 0)
{
HttpContext.Response.Cookies.Delete("subject");
}
string favorite = JsonConvert.SerializeObject(subjects);
Response.Cookies.Append("subject", favorite, new CookieOptions {
MaxAge = TimeSpan.FromDays(14)
});
}
}
else
{
List <Subject> subjects = JsonConvert.DeserializeObject <List <Subject> >(Request.Cookies["subject"]);
if (subjects.Find(s => s.Id == id) == null)
{
return(NotFound());
}
subjects.Remove(subjects.FirstOrDefault(s => s.Id == id));
if (subjects.Count == 0)
{
HttpContext.Response.Cookies.Delete("subject");
}
string favorite = JsonConvert.SerializeObject(subjects);
Response.Cookies.Append("subject", favorite, new CookieOptions {
MaxAge = TimeSpan.FromDays(14)
});
}
if (control == "Bookmark")
{
return(RedirectToAction("Bookmark", "Course"));
}
if (control == "Subject")
{
Subject subject = await _db.Subjects.Include(s => s.Course).Where(s => s.Id == id).FirstOrDefaultAsync();
return(RedirectToAction("Subject", new { id = subject.CourseId }));
}
return(RedirectToAction("Index", control));
}
