public ActionResult CheckProblemPost()
{
var userId = this.User.Identity.GetUserId();
var function1 = Request.Form["Function.Function1"];
var function2 = Request.Form["Function.Function2"];
var newProblem = new Problem(userId,
function1,
function2 == "" ? null : function2,
ProblemType.Coursework,
ProblemStatus.Active);
this.Data.Problems.Add(newProblem);
this.Data.SaveChanges();
int[] mistakes = new int[4];
var solutionModel = new ProblemSolutionViewModel();
for (int i = 0; i < 4; i++)
{
var mistakeIndex = Request.Form["Mistakes[" + i + "].IndexOfX"];
var mistakeProduct = Request.Form["Mistakes[" + i + "].MistakenProduct"];
var mistakeValue = Request.Form["Mistakes[" + i + "].MistakenValue"];
string mistakeDisplay;
if (i < 2)
{
mistakeDisplay = FunctionParser.GetDisplayX(mistakeProduct + mistakeIndex);
}
else
{
mistakeDisplay = FunctionParser.GetDisplayProduct(mistakeProduct);
}
var mistake = new NDKS.Models.Mistake(newProblem.Id, mistakeProduct,
Int32.Parse(mistakeValue),
mistakeIndex == "" ? null : (int?) Int32.Parse(mistakeIndex),
mistakeDisplay);
solutionModel.Mistakes.Add(mistake);
this.Data.Mistakes.Add(mistake);
this.Data.SaveChanges();
mistakes[i] = mistake.Id;
}
this.Data.SaveChanges();
solutionModel.Solution = this.GetProblemSolution(newProblem);
int problemId = newProblem.Id;
for (int i = 0; i < mistakes.Length; i++)
{
var mistake = this.Data.Mistakes.Find(mistakes[i]);
this.Data.Mistakes.Delete(mistake);
}
this.Data.Problems.Delete(problemId);
this.Data.SaveChanges();
solutionModel.Functions = FunctionParser.GetDisplayFunction(new Function(function1, function2 == "" ? null : function2));
return View(solutionModel);
}
private void AddProblem(System.Collections.Specialized.NameValueCollection form,
ProblemType type, string userId)
{
var function1 = form["Function.Function1"];
var function2 = form["Function.Function2"];
var newProblem = new Problem(userId,
function1,
function2 == "" ? null : function2,
type,
ProblemStatus.Active);
this.Data.Problems.Add(newProblem);
this.Data.SaveChanges();
Common.Mistake[] mistakes = new Common.Mistake[4];
for (int i = 0; i < 4; i++)
{
var mistakeIndex = form["Mistakes[" + i + "].IndexOfX"];
var mistakeProduct = form["Mistakes[" + i + "].MistakenProduct"];
var mistakeValue = form["Mistakes[" + i + "].MistakenValue"];
string mistakeDisplay;
if (i < 2)
{
mistakeDisplay = FunctionParser.GetDisplayX(mistakeProduct + mistakeIndex);
}
else
{
mistakeDisplay = FunctionParser.GetDisplayProduct(mistakeProduct);
}
var mistake = new NDKS.Models.Mistake(newProblem.Id, mistakeProduct,
Int32.Parse(mistakeValue),
mistakeIndex == "" ? null : (int?) Int32.Parse(mistakeIndex),
mistakeDisplay);
this.Data.Mistakes.Add(mistake);
}
this.Data.SaveChanges();
}
public ActionResult Exercise()
{
string loggedUserId = User.Identity.GetUserId();
var existingProblem = this.Data.Problems
.All().FirstOrDefault(p => p.UserId == loggedUserId &&
p.ProblemType == ProblemType.Train &&
p.ProblemStatus == ProblemStatus.Active);
if (existingProblem != null)
{
var func = new Function(existingProblem.Function, existingProblem.Function2);
ViewBag.func = FunctionParser.GetDisplayFunction(func);
var existingMistakes = this.Data.Mistakes
.All()
.Where(m => m.ProblemId == existingProblem.Id).ToList();
Common.Mistake[] existingMistakesForSolution = new Common.Mistake[4];
for (int i = 0; i < existingMistakes.Count(); i++)
{
existingMistakesForSolution[i] = new Common.Mistake(
existingMistakes.ElementAt(i).MistakenProduct,
existingMistakes.ElementAt(i).MistakenValue,
existingMistakes.ElementAt(i).IndexOfX,
existingMistakes.ElementAt(i).DisplayProduct);
}
for (int i = 0; i < existingMistakesForSolution.Length; i++)
{
ViewBag.func += "</br> T" + (i + 1) + " => " + existingMistakesForSolution[i].DisplayProduct + " = " +
existingMistakesForSolution[i].MistakenValue;
}
var existingSolution = FunctionParser.Solve(func, existingMistakesForSolution);
var viewModel = new Models.Solution(existingSolution, existingProblem.Id);
return View(viewModel);
}
function = FunctionParser.Generate();
Common.Mistake[] mistakes = FunctionParser.GenerateMistakes(function);
ViewBag.func = FunctionParser.GetDisplayFunction(function);
for (int i = 0; i < mistakes.Length; i++)
{
ViewBag.func += "</br> T" + (i + 1) + " => " + mistakes[i].DisplayProduct + " = " +
mistakes[i].MistakenValue;
}
var solution = FunctionParser.Solve(function, mistakes);
ViewBag.table1 = solution.FirstTable;
if (solution.SecondTable != null)
{
ViewBag.table2 = solution.SecondTable;
}
Problem problem = new Problem(
loggedUserId,
this.function.Function1,
this.function.Function2,
ProblemType.Train,
ProblemStatus.Active
);
this.Data.Problems.Add(problem);
this.Data.SaveChanges();
for (int i = 0; i < mistakes.Length; i++)
{
NDKS.Models.Mistake newMistake =
new NDKS.Models.Mistake(
problem.Id,
mistakes[i].MistakenProduct,
mistakes[i].MistakenValue,
mistakes[i].IndexOfX,
mistakes[i].DisplayProduct);
this.Data.Mistakes.Add(newMistake);
}
this.Data.SaveChanges();
var solutionModel = new Models.Solution(solution, problem.Id);
return View(solutionModel);
}