public void PopulateAssignedCategoryData(Butuza_Elena_ProiectContext context,
Bike bike)
{
var allCategories = context.Category;
var bikeCategories = new HashSet <int>(
bike.BikeCategories.Select(c => c.BikeID));
AssignedCategoryDataList = new List <AssignedCategoryData>();
foreach (var cat in allCategories)
{
AssignedCategoryDataList.Add(new AssignedCategoryData
{
CategoryID = cat.ID,
Name = cat.CategoryName,
Assigned = bikeCategories.Contains(cat.ID)
});
}
}
public void UpdateBikeCategories(Butuza_Elena_ProiectContext context,
string[] selectedCategories, Bike bikeToUpdate)
{
if (selectedCategories == null)
{
bikeToUpdate.BikeCategories = new List <BikeCategory>();
return;
}
var selectedCategoriesHS = new HashSet <string>(selectedCategories);
var bikeCategories = new HashSet <int>
(bikeToUpdate.BikeCategories.Select(c => c.Category.ID));
foreach (var cat in context.Category)
{
if (selectedCategoriesHS.Contains(cat.ID.ToString()))
{
if (!bikeCategories.Contains(cat.ID))
{
bikeToUpdate.BikeCategories.Add(
new BikeCategory
{
BikeID = bikeToUpdate.ID,
CategoryID = cat.ID
});
}
}
else
{
if (bikeCategories.Contains(cat.ID))
{
BikeCategory courseToRemove
= bikeToUpdate
.BikeCategories
.SingleOrDefault(i => i.CategoryID == cat.ID);
context.Remove(courseToRemove);
}
}
}
}
