public string Create(T item)
{
using (Exercicio01_CSharpContex context = new Exercicio01_CSharpContex())
{
context.Set <T>().Add(item);
context.SaveChanges();
}
return("Criado com sucesso!");
}
public string Update(T item)
{
using (Exercicio01_CSharpContex context = new Exercicio01_CSharpContex())
{
context.Entry <T>(item).State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
return("Alterado com sucesso!!");
}
public List <T> ListAll()
{
List <T> listItem = new List <T>();
//objeto usado neste contexto e sera descartado
using (Exercicio01_CSharpContex context = new Exercicio01_CSharpContex())
{
listItem = context.Set <T>().ToList();
}
return(listItem);
}
public string Delete(int id)
{
using (Exercicio01_CSharpContex context = new Exercicio01_CSharpContex())
{
//var product = GetById(id);
//context.Entry<Product>(product).State = System.Data.Entity.EntityState.Deleted;
var itemT = context.Set <T>().Find(id);
context.Set <T>().Remove(itemT);
context.SaveChanges();
}
return("Deletado com sucesso!!!");
}
public T GetById(int id)
{
T item;
using (Exercicio01_CSharpContex context = new Exercicio01_CSharpContex())
{
item = context.Set <T>().Find(id);
//outro metodo, first ou Default pois nao se sabe quantos resultados vem
//product = context.Product.Where(p => p.Id == id).FirstOrDefault();
}
return(item);
}
