public void UpdateFilmCategories(Farcas_Viorel_ProiectContext context, string[] selectedCategories, Film filmToUpdate)
{
if (selectedCategories == null)
{
filmToUpdate.FilmCategories = new List <FilmCategory>(); return;
}
var selectedCategoriesHS = new HashSet <string>(selectedCategories);
var filmCategories = new HashSet <int>
(filmToUpdate.FilmCategories.Select(c => c.Category.ID));
foreach (var cat in context.Category)
{
if (selectedCategoriesHS.Contains(cat.ID.ToString()))
{
if (!filmCategories.Contains(cat.ID))
{
filmToUpdate.FilmCategories.Add(
new FilmCategory
{
FilmID = filmToUpdate.ID,
CategoryID = cat.ID
});
}
}
else
{
if (filmCategories.Contains(cat.ID))
{
FilmCategory courseToRemove
= filmToUpdate
.FilmCategories
.SingleOrDefault(i => i.CategoryID == cat.ID);
context.Remove(courseToRemove);
}
}
}
}
public void PopulateAssignedCategoryData(Farcas_Viorel_ProiectContext context, Film film)
{
var allCategories = context.Category;
var filmCategories = new HashSet <int>(film.FilmCategories.Select(c => c.FilmID));
AssignedCategoryDataList = new List <AssignedCategoryData>();
foreach (var cat in allCategories)
{
AssignedCategoryDataList.Add(new AssignedCategoryData
{
CategoryID = cat.ID,
Name = cat.CategoryName,
Assigned = filmCategories.Contains(cat.ID)
});
}
}