public void UpdateDrugCategories(Nistor_Andreea_ProiectContext context, string[] selectedCategories, Drug drugToUpdate) { if (selectedCategories == null) { drugToUpdate.DrugCategories = new List <DrugCategory>(); return; } var selectedCategoriesHS = new HashSet <string>(selectedCategories); var drugCategories = new HashSet <int> (drugToUpdate.DrugCategories.Select(c => c.Category.ID)); foreach (var cat in context.Category) { if (selectedCategoriesHS.Contains(cat.ID.ToString())) { if (!drugCategories.Contains(cat.ID)) { drugToUpdate.DrugCategories.Add( new DrugCategory { DrugID = drugToUpdate.ID, CategoryID = cat.ID }); } } else { if (drugCategories.Contains(cat.ID)) { DrugCategory courseToRemove = drugToUpdate .DrugCategories .SingleOrDefault(i => i.CategoryID == cat.ID); context.Remove(courseToRemove); } } } }
public void PopulateAssignedCategoryData(Nistor_Andreea_ProiectContext context, Drug drug) { var allCategories = context.Category; var drugCategories = new HashSet <int>( drug.DrugCategories.Select(c => c.DrugID)); AssignedCategoryDataList = new List <AssignedCategoryData>(); foreach (var cat in allCategories) { AssignedCategoryDataList.Add(new AssignedCategoryData { CategoryID = cat.ID, Name = cat.CategoryName, Assigned = drugCategories.Contains(cat.ID) }); } }