public async Task <IActionResult> PutAnimalCategory(int id, AnimalCategory animalCategory)
{
if (id != animalCategory.AnimalCategoryId)
{
return(BadRequest());
}
_context.Entry(animalCategory).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
return(new JsonResult(animalCategory));
}
catch (DbUpdateConcurrencyException)
{
if (!AnimalCategoryExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
}
// This is the requested function with the optional parameter. It uses a
// nullable boolean where null represents no parameter supplied, in which case
// it will not filter based on the tail.
public AnimalCollection Categorise(AnimalCategory category, bool?hasTail = null)
{
// hasTail can be safely cast to a bool because operator short-circuiting on the || will
// have caught any nulls. Beware if you need to change this.
return(new AnimalCollection(this.Where(x =>
x.Category == category && (hasTail == null || (bool)hasTail == x.HasTail))));
}
public async Task <ActionResult <AnimalCategory> > PostAnimalCategory(AnimalCategory animalCategory)
{
await _context.AnimalCategories.AddAsync(animalCategory);
await _context.SaveChangesAsync();
return(CreatedAtAction("GetAnimalCategory", new { id = animalCategory.AnimalCategoryId }, animalCategory));
}
/// <summary>
/// Initialize the list of animals, based on which category is selected.
/// </summary>
/// <param name="category"></param>
/// <exception cref="ArgumentOutOfRangeException"></exception>
private void InitObjectChoser(AnimalCategory category)
{
switch (category)
{
case AnimalCategory.Bird:
lbxAnimalObject.DataSource = new List <string>(Enum.GetNames(typeof(Birds)));
break;
case AnimalCategory.Mammal:
lbxAnimalObject.DataSource = new List <string>(Enum.GetNames(typeof(Mammals)));
break;
case AnimalCategory.All:
var birds = new List <string>(Enum.GetNames(typeof(Birds)));
var mammals = new List <string>(Enum.GetNames(typeof(Mammals)));
var choices = new List <string>(birds);
choices.AddRange(mammals);
lbxAnimalObject.DataSource = choices;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
public AnimalCollection Categorise(AnimalCategory category, bool hasTail)
{
return(Categorise(category, (bool?)hasTail));
}
public AnimalCollection Categorise(AnimalCategory category)
{
return(Categorise(category, null));
}
public static Animal[] FindAnimals(AnimalCategory category, AnimalRarity rarity, TerrainType terrainType, bool isProtected) => AvailableAnimals.FindAll(x => x.Category == category && x.Rarity == rarity && x.TerrainType == terrainType && x.IsProtected == isProtected).ToArray();
public static Animal[] FindAnimals(AnimalCategory category, AnimalRarity rarity, TerrainType terrainType) => AvailableAnimals.FindAll(x => x.Category == category && x.Rarity == rarity && x.TerrainType == terrainType).ToArray();
public static Animal[] FindAnimals(AnimalCategory category, bool isProtected) => AvailableAnimals.FindAll(x => x.Category == category && x.IsProtected == isProtected).ToArray();
public static Animal[] FindAnimals(AnimalCategory category, AnimalRarity rarity) => AvailableAnimals.FindAll(x => x.Category == category && x.Rarity == rarity).ToArray();
public static Animal[] FindAnimals(AnimalCategory category) => AvailableAnimals.FindAll(x => x.Category == category).ToArray();
public Animal(string name, AnimalCategory category, bool hasTail)
{
Name = name;
Category = category;
HasTail = hasTail;
}
