public void PopulateAssignedCategoryData(Project_Dorut_IugaContext context,
Game game)
{
var allCategories = context.Category;
var gameCategories = new HashSet <int>(
game.GameCategories.Select(c => c.GameID));
AssignedCategoryDataList = new List <AssignedCategoryData>();
foreach (var cat in allCategories)
{
AssignedCategoryDataList.Add(new AssignedCategoryData
{
CategoryID = cat.ID,
Name = cat.CategoryName,
Assigned = gameCategories.Contains(cat.ID)
});
}
}
public void UpdateGameCategories(Project_Dorut_IugaContext context,
string[] selectedCategories, Game gameToUpdate)
{
if (selectedCategories == null)
{
gameToUpdate.GameCategories = new List <GameCategory>();
return;
}
var selectedCategoriesHS = new HashSet <string>(selectedCategories);
var gameCategories = new HashSet <int>
(gameToUpdate.GameCategories.Select(c => c.Category.ID));
foreach (var cat in context.Category)
{
if (selectedCategoriesHS.Contains(cat.ID.ToString()))
{
if (!gameCategories.Contains(cat.ID))
{
gameToUpdate.GameCategories.Add(
new GameCategory
{
GameID = gameToUpdate.ID,
CategoryID = cat.ID
});
}
}
else
{
if (gameCategories.Contains(cat.ID))
{
GameCategory courseToRemove
= gameToUpdate
.GameCategories
.SingleOrDefault(i => i.CategoryID == cat.ID);
context.Remove(courseToRemove);
}
}
}
}
