public Car Get(Expression <Func <Car, bool> > filter)
{
using (CarProjectDbContext context = new CarProjectDbContext())
{
return(context.Set <Car>().SingleOrDefault(filter));
}
}
public void Update(Car entity)
{
using (CarProjectDbContext context = new CarProjectDbContext())
{
var updatedEntity = context.Entry(entity);
updatedEntity.State = EntityState.Modified;
context.SaveChanges();
}
}
public List <Car> GetAll(Expression <Func <Car, bool> > filter = null)
{
using (CarProjectDbContext context = new CarProjectDbContext())
{
return(filter == null
? context.Set <Car>().ToList()
: context.Set <Car>().Where(filter).ToList());
}
}
public void Delete(Car entity)
{
using (CarProjectDbContext context = new CarProjectDbContext())
{
var deletedEntity = context.Entry(entity);
deletedEntity.State = EntityState.Deleted;
context.SaveChanges();
}
}
public void Add(Car entity)
{
//using = IDisposable pattern implemantation of c#
using (CarProjectDbContext context = new CarProjectDbContext())
{
var addedEntity = context.Entry(entity);
addedEntity.State = EntityState.Added;
context.SaveChanges();
}
}