public int Contar(Expression <Func <T, bool> > where)
{
using (var db = new AplicacionDbContext())
{
return(db.Set <T>().Where(where).Count());
}
}
public T ObtenerPorId(int id, ParametrosDeQuery <T> parametrosDeQuery)
{
var include = (parametrosDeQuery.Include);
using (var db = new AplicacionDbContext())
{
return(db.Set <T>().Include(include).FirstOrDefault(x => x.Id == id));
}
}
public IEnumerable <T> EncontrarPor(ParametrosDeQuery <T> parametrosDeQuery)
{
var orderByClass = ObtenerOrderBy(parametrosDeQuery);
Expression <Func <T, bool> > whereTrue = x => true;
var where = (parametrosDeQuery.Where == null) ? whereTrue : parametrosDeQuery.Where;
var include = (parametrosDeQuery.Include);
using (AplicacionDbContext db = new AplicacionDbContext())
{
if (orderByClass.IsAscending)
{
return(db.Set <T>().Include(include).Where(where).OrderBy(orderByClass.OrderBy)
.Skip((parametrosDeQuery.Pagina - 1) * parametrosDeQuery.Top)
.Take(parametrosDeQuery.Top).ToList());
}
else
{
return(db.Set <T>().Include(include).Where(where).OrderByDescending(orderByClass.OrderBy)
.Skip((parametrosDeQuery.Pagina - 1) * parametrosDeQuery.Top)
.Take(parametrosDeQuery.Top).ToList());
}
}
}
