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)
});
}
}
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);
}
}
}
}
