private async Task <List <StudyMaterialViewModel> > GetDetailedStudyMaterials(int courseId, int pageNumber
= 0, StudyMaterialSortingCriteria sortCriteria = StudyMaterialSortingCriteria.NoSorting, string searchFor = null, int[] categories = null)
{
int itemsCount = WebConstants.MAX_NUMBER_OF_STUDY_MATERIALS_PER_PAGE;
int offset = pageNumber * WebConstants.MAX_NUMBER_OF_STUDY_MATERIALS_PER_PAGE;
List <DetailedStudyMaterialDTO> studyMaterials = new List <DetailedStudyMaterialDTO>();
switch (sortCriteria)
{
case StudyMaterialSortingCriteria.NoSorting: studyMaterials = await _studyMaterialManagementService.GetDetailedStudyMaterials <NoSorting>(courseId, offset, itemsCount, searchFor, categories); break;
case StudyMaterialSortingCriteria.RatingAsc: studyMaterials = await _studyMaterialManagementService.GetDetailedStudyMaterials(courseId, offset, itemsCount, searchFor, categories, x => x.TotalRating); break;
case StudyMaterialSortingCriteria.RatingDesc: studyMaterials = await _studyMaterialManagementService.GetDetailedStudyMaterials(courseId, offset, itemsCount, searchFor, categories, x => x.TotalRating, false); break;
case StudyMaterialSortingCriteria.UploadDateAsc: studyMaterials = await _studyMaterialManagementService.GetDetailedStudyMaterials(courseId, offset, itemsCount, searchFor, categories, x => x.UploadDate); break;
case StudyMaterialSortingCriteria.UploadDateDesc: studyMaterials = await _studyMaterialManagementService.GetDetailedStudyMaterials(courseId, offset, itemsCount, searchFor, categories, x => x.UploadDate, false); break;
}
studyMaterials = await _studyMaterialManagementService.AppendRating(this.GetUserId(), studyMaterials);
return(_mapper.Map <List <DetailedStudyMaterialDTO>, List <StudyMaterialViewModel> >(studyMaterials));
}
/// <summary>
/// Sets predefined values for a page.
/// </summary>
/// <param name="courseId">Unique identifier of a course</param>
/// <param name="sortCriteria">Choosen sort criteria</param>
/// <param name="categories">List of selected categories</param>
/// <returns></returns>
private async Task SetViewInformation(int courseId, HttpReponseStatusCode statusCode, string searchFor = null, StudyMaterialSortingCriteria sortCriteria = StudyMaterialSortingCriteria.NoSorting, int[] categories = null)
{
ViewBag.SortingCriteria = sortCriteria;
ViewBag.SelectedCategories = categories;
ViewBag.SearchFor = searchFor;
ViewBag.InfoMessage = new InfoMessage(_stringLocalizer, statusCode);
ViewBag.AllCategories = _mapper.Map <List <CategoryDTO>, List <CategoryViewModel> >(await _categoryService.GetAll(x => x.CourseId == courseId && !x.Deleted, x => x.Name));
}
public async Task <ActionResult> SearchSortFilter(int courseId, int pageNumber, StudyMaterialSortingCriteria sortCriteria, string searchFor, int[] categories)
{
int totalNumberOfItems = await _studyMaterialManagementService.Count(courseId, searchFor, categories);
PageInformation pageinformation = new PageInformation(pageNumber, totalNumberOfItems, WebConstants.MAX_NUMBER_OF_STUDY_MATERIALS_PER_PAGE);
List <StudyMaterialViewModel> detailedStudyMaterialViewModels = await GetDetailedStudyMaterials(courseId, pageinformation.PageNumber, sortCriteria, searchFor, categories);
CourseStudyMaterialsViewModel mainModel = new CourseStudyMaterialsViewModel(courseId, detailedStudyMaterialViewModels, pageinformation);
await SetViewInformation(courseId, HttpReponseStatusCode.NoStatus, searchFor, sortCriteria, categories);
return(View("Course", mainModel));
}
