public ActionResult Delete(int LabelId)
{
LabelProfile label = _context.LabelProfiles.FirstOrDefault(x => x.Id == LabelId);
label.IsDelete = true;
_context.SaveChanges();
return(RedirectToAction(nameof(Index)));
}
public IActionResult Change(LabelProfile labelProfile)
{
LabelProfile label = _context.LabelProfiles.FirstOrDefault(x => x.Id == labelProfile.Id);
label.Introduction = labelProfile.Introduction;
label.Name = labelProfile.Name;
_context.SaveChanges();
return(RedirectToAction(nameof(Index)));
}
public IActionResult Change(long?id)
{
if (id == null)
{
return(RedirectToAction(nameof(Index)));
}
LabelProfile label = _context.LabelProfiles.FirstOrDefault(x => x.Id == id);
return(View(label));
}
public IActionResult New(NewViewModel model)
{
LabelProfile label = new LabelProfile();
label.Introduction = model.Introduction;
label.Name = model.Name;
label.IsDelete = false;
_context.LabelProfiles.Add(label);
_context.SaveChanges();
return(RedirectToAction(nameof(Index)));
}
/// <summary>
/// 展示所有的题目
/// </summary>
/// <returns></returns>
public IActionResult Index(int page = 0)
{
var user = HttpContext.Session.Get <UserProfileModel>("CurrentUser");
// 将题目和他的标签查询出来
List <ProblemAndHisLabel> problemAndHisLabels = new List <ProblemAndHisLabel>();
foreach (var item in _context.Problems.Where(x => x.IsDelete == false).Skip(page * PageSize).Take(PageSize).ToList())
{
ProblemAndHisLabel problemAndHisLabel = new ProblemAndHisLabel();
problemAndHisLabel.problem = item;
if (user != null)
{
var issolve = _context.Tracks.FirstOrDefault(x => x.ProblemId == item.Id && x.SubmitterId == user.Id.ToString());
if (issolve == null)
{
problemAndHisLabel.IsSolved = false;
}
else
{
problemAndHisLabel.IsSolved = true;
}
}
else
{
problemAndHisLabel.IsSolved = false;
}
// 去查每一个题目的标签
List <LabelProfile> labelProfiles = new List <LabelProfile>();
foreach (var ProblemLabelitem in _context.ProblemLabels.Where(x => x.ProblemId == item.Id.ToString()).ToList())
{
LabelProfile labelProfile = _context.LabelProfiles.FirstOrDefault(x => x.Id == long.Parse(ProblemLabelitem.LabelId));
labelProfiles.Add(labelProfile);
}
problemAndHisLabel.labelProfiles = labelProfiles;
problemAndHisLabels.Add(problemAndHisLabel);
}
//获得所有标签
List <LabelProfile> AllLables = _context.LabelProfiles.ToList();
IndexViewModel model = new IndexViewModel
{
ProblemModels = problemAndHisLabels,
AllLables = AllLables,
Page = page
};
return(View(model));
}
public IActionResult ChangeProblem(int page = 0)
{
var user = HttpContext.Session.Get <UserProfileModel>("CurrentUser");
if (user == null)
{
TempData["Message"] = "请先登录";
return(RedirectToAction("Login", "Auth"));
}
// 将题目和他的标签查询出来
List <ProblemAndHisLabel> problemAndHisLabels = new List <ProblemAndHisLabel>();
foreach (var item in _context.Problems.Where(x => x.IsDelete == false).Skip(page * PageSize).Take(PageSize).ToList())
{
ProblemAndHisLabel problemAndHisLabel = new ProblemAndHisLabel();
problemAndHisLabel.problem = item;
// 去查每一个题目的标签
List <LabelProfile> labelProfiles = new List <LabelProfile>();
foreach (var ProblemLabelitem in _context.ProblemLabels.Where(x => x.ProblemId == item.Id.ToString()).ToList())
{
LabelProfile labelProfile = _context.LabelProfiles.FirstOrDefault(x => x.Id == long.Parse(ProblemLabelitem.LabelId));
labelProfiles.Add(labelProfile);
}
problemAndHisLabel.labelProfiles = labelProfiles;
problemAndHisLabels.Add(problemAndHisLabel);
}
//获得所有标签
List <LabelProfile> AllLables = _context.LabelProfiles.ToList();
IndexViewModel model = new IndexViewModel
{
ProblemModels = problemAndHisLabels,
AllLables = AllLables,
Page = page
};
return(View(model));
}
public IActionResult Recommend(int page = 0)
{
var user = HttpContext.Session.Get <UserProfileModel>("CurrentUser");
if (user == null)
{
TempData["Message"] = "请先登录";
return(RedirectToAction("Login", "Auth"));
}
List <RecommendProblem> recommendProblems = new List <RecommendProblem>();
foreach (var item in _context.Problems.Where(x => x.IsDelete == false).ToList())
{
int weight = 0;
foreach (var problemlabel in _context.ProblemLabels.Where(x => x.ProblemId == item.Id.ToString()).ToList())
{
foreach (var userlabel in _context.UserLabels.Where(x => x.UserId == user.Id.ToString()).ToList())
{
if (userlabel.LabelId == problemlabel.LabelId)
{
weight += userlabel.Weight * problemlabel.Weight;
}
}
}
if (_context.Tracks.FirstOrDefault(x => x.ProblemId == item.Id && x.Status == Models.Judge.JudgeStatus.Accept) != null)
{
weight = -1;
}
RecommendProblem recommendProblem = new RecommendProblem
{
problem = item,
Weight = weight
};
recommendProblems.Add(recommendProblem);
}
recommendProblems.Sort((l, r) => r.Weight.CompareTo(l.Weight));
List <ProblemAndHisLabel> problemAndHisLabels = new List <ProblemAndHisLabel>();
foreach (var item in recommendProblems.Skip(page * PageSize).Take(PageSize).ToList())
{
ProblemAndHisLabel problemAndHisLabel = new ProblemAndHisLabel();
problemAndHisLabel.problem = item.problem;
if (user != null)
{
var issolve = _context.Tracks.FirstOrDefault(x => x.ProblemId == item.problem.Id && x.SubmitterId == user.Id.ToString());
if (issolve == null)
{
problemAndHisLabel.IsSolved = false;
}
else
{
problemAndHisLabel.IsSolved = true;
}
}
else
{
problemAndHisLabel.IsSolved = false;
}
// 去查每一个题目的标签
List <LabelProfile> labelProfiles = new List <LabelProfile>();
foreach (var ProblemLabelitem in _context.ProblemLabels.Where(x => x.ProblemId == item.problem.Id.ToString()).ToList())
{
LabelProfile labelProfile = _context.LabelProfiles.FirstOrDefault(x => x.Id == long.Parse(ProblemLabelitem.LabelId));
labelProfiles.Add(labelProfile);
}
problemAndHisLabel.labelProfiles = labelProfiles;
problemAndHisLabels.Add(problemAndHisLabel);
}
//获得所有标签
List <LabelProfile> AllLables = _context.LabelProfiles.ToList();
IndexViewModel model = new IndexViewModel
{
ProblemModels = problemAndHisLabels,
AllLables = AllLables,
Page = page
};
return(View(model));
}
