Retrieve values from a table without using filters - sql

Question

I have two tables
Estatus table
+----+----------+
| ID | Nombre |
+----+----------+
| 16 | ACTIVE |
| 2 | DISABLED |
+----+----------+
TipoCarga Table
+----+----------+--------------------+-----------+
| ID | Nombre | Descripcion | EstatusID |
+----+----------+--------------------+-----------+
| 1 | Active | first descriptio | 16 |
| 2 | Disabled | second description | 2 |
+----+----------+--------------------+-----------+
and I have custom entity to list and charge like:
IEnumerable<T> Listar(Expression<Func<T, bool>> filter = null,
Func<IQueryable<T>, IOrderedQueryable<T>> orderBy = null,
string includeProperties = "");
T Cargar(Expression<Func<T, bool>> filter,
string includeProperties = "");
if I do something like
var claseid = _claseService.Cargar(c => c.Nombre.Equals("TIPOS DE CARGA")).ID;
var estatusid = _estatusService.Cargar(e => e.Nombre.Equals("ACTIVE") && e.ClaseID.Equals(claseid)).ID;
var tc = _tipoCargaService.Listar(c => c.EstatusID.Equals(estatusid), includeProperties: "Estatus");
It load values, but only values who have Nombre.Equals("ACTIVO"), and I want to get all Nombre values
So first I try to get a list of all Estatus like:
//I don´t need this line because I dont wannt to filte by clase
//var claseid = _claseService.Cargar(c => c.Nombre.Equals("TIPOS DE CARGA")).ID;
//get list of all estatus
var estatusid = _estatusService.Listar();
then use this list and use to retrieve value "Nombre" depending of EstatusID of table TipoCarga like:
var tc = _tipoCargaService.Listar(c => c.EstatusID.Equals(estatusid), includeProperties: "Estatus");
Problem is var estatusid = _estatusService.Listar(); get 0 values, and I don´t know why it don´t get values, can someone help ? Regards
Methods implementations:
public virtual IEnumerable<T> Listar(
Expression<Func<T, bool>> filter = null,
Func<IQueryable<T>, IOrderedQueryable<T>> orderBy = null,
string includeProperties = "")
{
IQueryable<T> query = _dbset;
if (filter != null)
{
query = query.Where(filter);
}
foreach (var includeProperty in includeProperties.Split
(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
{
query = query.Include(includeProperty);
}
if (orderBy != null)
{
return orderBy(query).AsEnumerable<T>();
}
else
{
return query.AsEnumerable<T>();
}
}
public virtual T Cargar(
Expression<Func<T, bool>> filter,
string includeProperties = "")
{
IQueryable<T> query = _dbset;
query = query.AsNoTracking().Where(filter);
foreach (var includeProperty in includeProperties.Split
(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
{
query = query.Include(includeProperty);
}
return query.FirstOrDefault();
}
UPDATE:
If I use .Tolist as Ivan Stoev comment it return all values of Estatus but now it pass to:
var tc = _tipoCargaService.Listar(c => c.EstatusID.Equals(estatusid), includeProperties: "Estatus");
then it load foreach like:
if (tc != null)
{
List<TipoCargaViewModel> tiposcargas = new List<TipoCargaViewModel>();
foreach (var item in tc)
{
var carga = new TipoCargaViewModel()
{
ID = item.ID,
Nombre = item.Nombre,
Descripcion = item.Descripcion,
EstatusID = item.EstatusID,
NombreEstatus = item.Estatus.Nombre
};
tiposcargas.Add(carga);
}
But when it try to pass foreach it throw an exception:
Unable to create a constant value of type 'Project.Model.Estatus'.
Only primitive types or enumeration types are supported in this
context.