public async Task<ActionResult> Index([ModelBinder(typeof(SearchBinder))] SearchViewModel searchView)
{
var ratios = await db.CriterionRatios.Include(c=>c.CriterionSource).Include(c=>c.CriterionDestination).ToListAsync();
var courses = await db.Courses.Include(c=>c.Exams).Include(c=>c.Institute).Include(c=>c.Discipline).Include(c=>c.Institute.District).ToListAsync();
var calc = new Calculation(ratios);
var filter = new CourseFilterProreties();
filter.Budget = searchView.Budget;
filter.Disciplines = searchView.Disciplines;
filter.Districts = searchView.Districts;
filter.Extrabudget = searchView.ExtraBudget;
filter.PreparatoryCourses = searchView.PreparationCourses;
filter.Exams = searchView.Exams;
filter.Cost = searchView.Cost;
filter.Hostel = searchView.Hostel;
filter.LearningTypes=new List<LearningType>();
if (searchView.FullTime)
{
filter.LearningTypes.Add(LearningType.FullTime);
}
if (searchView.DistanceLearning)
{
filter.LearningTypes.Add(LearningType.DistanceLearning);
}
var model = new SearchViewModel
{
CitiesSelectList = new List<SelectListItem>(),
FindedCourses = new List<SearchCourseViewModel>(),
DisciplinesSelectList = new List<SelectListItem>(),
DistinctsSelectList = new List<SelectListItem>(),
ExamsSelectList = new List<SelectListItem>()
};
foreach (var course in courses)
{
if(!filter.Disciplines.Any(d=>d.Id==course.Discipline.Id))
continue;
var doubles=calc.GetCoefOfCourse(filter, course, courses); // ЗДЕСЬ ПРОИСХОДИТ РАСЧЕТ КОЭФФИЦИЕНТА ПО ДАННЫМ ФИЛЬТРА
var searchCourseViewModel = new SearchCourseViewModel();
searchCourseViewModel.Course = course;
searchCourseViewModel.SearchCoef = doubles;
model.FindedCourses.Add(searchCourseViewModel);
}
model.FindedCourses=model.FindedCourses.OrderBy(o => o.SearchCoef).Reverse().ToList();
var cities = await db.Cities.ToListAsync();
var districts = await db.Districts.ToListAsync();
var disciplines = await db.Disciplines.ToListAsync();
var exams = await db.Exams.ToListAsync();
foreach (var city in cities)
{
var selectItem = new SelectListItem();
selectItem.Text = city.Name;
selectItem.Value = city.Id.ToString();
model.CitiesSelectList.Add(selectItem);
}
foreach (var discipline in disciplines)
{
var selectItem = new SelectListItem();
selectItem.Text = discipline.Name;
selectItem.Value = discipline.Id.ToString();
model.DisciplinesSelectList.Add(selectItem);
}
foreach (var district in districts)
{
var selectItem = new SelectListItem();
selectItem.Text = district.Name;
selectItem.Value = district.Id.ToString();
model.DistinctsSelectList.Add(selectItem);
}
foreach (var exam in exams)
{
var selectItem = new SelectListItem();
selectItem.Text = exam.Name;
selectItem.Value = exam.ExamId.ToString();
model.ExamsSelectList.Add(selectItem);
}
return View(model);
}
/// <summary>
/// Функция, которая непосредственно рассчитывает критерий, на основе значений фильтра, для заданного конкретного направления подготовки
/// </summary>
/// <param name="filter">Параметры фильтра, которые отметил пользователь</param>
/// <param name="course">Конкретное направление подгтовки, для которого расчитывается криетрий</param>
/// <param name="allCourses">Список всех направлений подготовки. *** Он нам нужен, чтобы определить, есть ли в вузе другие направления, которые дополнительно отметил пользователь*** - если непонятно - напиши мне.</param>
/// <returns></returns>
public double GetCoefOfCourse(CourseFilterProreties filter, Course course, List<Course> allCourses)
{
double totalCoefficient = 0;
//Критерий "Наличие специальности
if (filter.Disciplines.Any(d => d.Id == course.Discipline.Id))
{
if (filter.Disciplines.Count == 1)
{
totalCoefficient += Criteries.First(c => c.Name == "DisciplineExists").CriterionCoef;
}
else
{
List<Course> instituteCourses = allCourses.Where(c => c.Institute.Id == course.Institute.Id).ToList();
int findedDisciplines =
filter.Disciplines.Count(discipline => instituteCourses.Any(i => i.Discipline.Id == discipline.Id));
double disciplinesCount = filter.Disciplines.Count;
totalCoefficient += (Criteries.First(c => c.Name == "DisciplineExists").CriterionCoef*
(findedDisciplines/disciplinesCount));
}
}
//Конец критерия "Наличие специальности
//Критерий "Вступительные испытания
if (filter.Exams.Count == 0)
{
totalCoefficient += Criteries.First(c => c.Name == "ExamsExists").CriterionCoef;
}
else
{
double findedExams = filter.Exams.Count(exam => course.Exams.Any(i => i.ExamId == exam.ExamId));
double examsCount = course.Exams.Count;
totalCoefficient += Criteries.First(c => c.Name == "ExamsExists").CriterionCoef*(findedExams/examsCount);
}
//Конец критерия "Вступительные испытания
//Критерий "• Наличие подготовительных курсов
if (filter.PreparatoryCourses)
{
if (course.PreparatoryCourses)
{
totalCoefficient += Criteries.First(c => c.Name == "PreparatoryCoursesExists").CriterionCoef;
}
}
else
{
totalCoefficient += Criteries.First(c => c.Name == "PreparatoryCoursesExists").CriterionCoef;
}
//Конец критерия "• Наличие подготовительных курсов
//Критерий "• Наличие общежития
if (filter.Hostel)
{
if (course.Hostel)
{
totalCoefficient += Criteries.First(c => c.Name == "HostelExists").CriterionCoef;
}
}
else
{
totalCoefficient += Criteries.First(c => c.Name == "HostelExists").CriterionCoef;
}
//Конец критерия "• Наличие общежития
//Критерий "• Бюджет/внебюджет
if (!filter.Budget && !filter.Extrabudget)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef;
}
else if (filter.Budget && !filter.Extrabudget && course.Budget)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef;
}
else if (!filter.Budget && filter.Extrabudget && course.Extrabudgetary)
{
if (course.Cost <= filter.Cost)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef;
}
else if (course.Cost <= filter.Cost - 15000)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef*0.5;
}
}
else if (filter.Budget && filter.Extrabudget)
{
if (course.Budget)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef;
}
else if (course.Extrabudgetary && course.Cost <= filter.Cost)
{
totalCoefficient += Criteries.First(c => c.Name == "BudgetOrExtrabudget").CriterionCoef*0.5;
}
}
//Конец критерия "• Бюджет/внебюджет
//Критерий "• Расположение
if (filter.Districts.Count != 0)
{
if (course.Institute.District != null)
{
if (filter.Districts.Count > 0 && filter.Districts.Any(d => d.Id == course.Institute.District.Id))
{
totalCoefficient += Criteries.First(c => c.Name == "CityLocation").CriterionCoef;
}
}
}
else
{
totalCoefficient += Criteries.First(c => c.Name == "CityLocation").CriterionCoef;
}
//Конец критерия "• Расположение
//Критерий "• Очное/ заочное
if (filter.LearningTypes.Count == 0)
{
totalCoefficient += Criteries.First(c => c.Name == "LearningType").CriterionCoef;
}
else
{
if (filter.LearningTypes.Any(t => t == LearningType.FullTime) &&
filter.LearningTypes.All(t => t != LearningType.DistanceLearning) &&
course.LearningType == LearningType.FullTime)
{
totalCoefficient += Criteries.First(c => c.Name == "LearningType").CriterionCoef;
}
else if (filter.LearningTypes.Any(t => t == LearningType.DistanceLearning) &&
filter.LearningTypes.All(t => t != LearningType.FullTime) &&
course.LearningType == LearningType.DistanceLearning)
{
totalCoefficient += Criteries.First(c => c.Name == "LearningType").CriterionCoef;
}
else if (filter.LearningTypes.Any(t => t == LearningType.DistanceLearning) &&
filter.LearningTypes.All(t => t != LearningType.FullTime) &&
course.LearningType == LearningType.FullTime)
{
totalCoefficient += Criteries.First(c => c.Name == "LearningType").CriterionCoef*0.3;
}
else if (filter.LearningTypes.Any(t => t == LearningType.FullTime) &&
filter.LearningTypes.Any(t => t == LearningType.DistanceLearning))
{
totalCoefficient += Criteries.First(c => c.Name == "LearningType").CriterionCoef;
}
}
//Конец критерия "• Очное/ заочное
return totalCoefficient;
}
