public bool BookThisClassForMyPet( PetClass target,Pet pet, Customer owner)
{
pet.HasClass = true;
target.Pets.Add(pet);
target.BookedCustomers.Add(owner);
return UpdatePetClass(target);
}
public ActionResult Create(PetClass petClass)
{
if (ModelState.IsValid)
{
_petClassLogic.AddPetClass(petClass);
return RedirectToAction("Index");
}
return View(petClass);
}
public bool AddPetClass(PetClass entity)
{
try
{
_petDb.PetClass.Add(entity);
_petDb.SaveChanges();
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// Subscribe all pets of gienCustomer to a given class,before calling this method, make sure to include the pets to Customer.
/// </summary>
/// <param name="classId"></param>
/// <param name="owner"></param>
/// <returns>true on success, false if thers no space for all incoming pets</returns>
public bool BookAllMyPetsToThisClass(PetClass target, Customer owner)
{
if(HasEnoughCapacity(target, owner.Pets.Count))
{
foreach (Pet p in owner.Pets)
{
target.Pets.Add(p);
}
target.BookedCustomers.Add(owner);
return UpdatePetClass(target);
}
return false;
}
public int CreatePet(PetClass entity)
{
try
{
if (entity == null)
return 0;
_petDb.PetClass.Add(entity);
return _petDb.SaveChanges() == 1 ? entity.PetClassId : 0;
}
catch (Exception)
{
return 0;
}
}
public bool UpdatePetClass(PetClass entity)
{
try
{
_petDb.Entry(entity).State = EntityState.Modified;
_petDb.SaveChanges();
return true;
}
catch (Exception)
{
return false;
}
}
public bool RemoveMyPetFromThisClass(PetClass target, int petId, int ownerId)
{
target.Pets.Remove(new Pet() { PetId = petId });
target.BookedCustomers.Remove(new Customer() { CustomerId = ownerId });
return UpdatePetClass(target);
}
public bool RemoveAllMyPetsFromThisClass(PetClass target, int ownerId)
{
for (int i = 0; i < target.Pets.Count; i++)
{
int currentPetId = target.Pets.ElementAt(i).PetId;
if (target.Pets.ElementAt(i).CustomerId.Equals(ownerId))
target.Pets.Remove(new Pet() { PetId = currentPetId });
}
target.BookedCustomers.Remove(new Customer() { CustomerId = ownerId });
return UpdatePetClass(target);
}
public bool HasEnoughCapacity(PetClass target, int inComming)
{
return (target.Pets.Count + inComming) <= target.Capacity;
}
public bool DeletePetClass(int id = 0)
{
//EF5 only
var petClass = new PetClass { PetClassId = id };
try
{
//var obj = _petDb.Pets.SingleOrDefault(p => p.PetId == id);
//_petDb.Pets.Remove(obj);
//_petDb.SaveChanges();
//EF 5 only
_petDb.PetClass.Attach(petClass);
_petDb.Entry(petClass).State = EntityState.Deleted;
_petDb.SaveChanges();
return true;
}
catch (Exception)
{
return false;
}
}