public Product Get(Expression <Func <Product, bool> > filter)
{
using (NortwindContext context = new NortwindContext())
{
return(context.Set <Product>().SingleOrDefault(filter));
}
}
public List <Product> GetAll(Expression <Func <Product, bool> > filter = null)
{
using (NortwindContext context = new NortwindContext())
{
return(filter == null?context.Set <Product>().ToList() : context.Set <Product>().Where(filter).ToList());
}
}
public void Update(Product entity)
{
using (NortwindContext context = new NortwindContext())
{
var updatedEntity = context.Entry(entity);
updatedEntity.State = EntityState.Modified;
context.SaveChanges();
}
}
public List <Product> GetAll(Expression <Func <Product, bool> > filter = null)
{
using (NortwindContext context = new NortwindContext())
{
return(filter == null
? context.Set <Product>().ToList()
: context.Set <Product>().Where(filter).ToList()); //null sa Select * from products gibi değilse filtreye göre getir
}
}
public void Delete(Product entity)
{
using (NortwindContext context = new NortwindContext())
{
var deletedEntity = context.Entry(entity);
deletedEntity.State = EntityState.Deleted;
context.SaveChanges();
}
}
public void Add(Product entity)
{
using (NortwindContext context = new NortwindContext())
{
var addedEntity = context.Entry(entity);
addedEntity.State = EntityState.Added;
context.SaveChanges();
}
}
public void Add(Product entity)
{
//IDisponsible pattern implementation of c#
using (NortwindContext context = new NortwindContext())
{
var addedEntity = context.Entry(entity);
addedEntity.State = EntityState.Added;
context.SaveChanges();
}
}
public void Add(Product entity)
{
//using bittikten sonra garbage cloolector hemen bellekten siler
//IDispossable patterne implementation od c#
using (NortwindContext context = new NortwindContext())
{
var addedEntity = context.Entry(entity);
addedEntity.State = EntityState.Added;
context.SaveChanges();
}
}