Hi,
I recently migrated my project from .NET Core 3.1 to .NET 6.0. In .NET Core 3.1 it was working perfectly but after migration i have one error in the LINQ query. Actually i have one Entity model "Employee". In the Employee entity model there is one filed which is unmapped into database and it is only getter. Following is my Employee entity model:
public class Employee { public int Id {get; set;} public string EmployeeReference {get; set;} public string EmployeeFullName {get; set;} public string EmployeePhoneNumber {get; set;} [NotMapped] public bool IsHQ { get { return this is HQEmployee; // HQ means Head Quearter } } }
My project is based on Generic Repository pattern. Following is the Interface of my Generic Repository:
public interface IRepository<T> { IQuerable<T> All {get;} T Find(int id); IQuerable<T> GetIncluding(params Expression<Func<T, object>>[] includesproperties); }
The folowing Interface is inherited from IRepository Interface:
public interface IEmployeeRepository : IRepository<Employee> { }
Following is the method where i want to retrieve those Employees who belongs to Head Quearters:
public class GetEmployeesListQuery : IGetEmployeesListQuery { private readonly IEmployeeRepository _employeeRepository; public GetEmployeesListQuery(IEmployeeRepository employeeRepository) { _employeeRepository = employeeRepository; } public List<GetEmployeAuthoritiesListModel> GetEmployeeAuthoritiesList() { var employeeList = new List<GetEmployeAuthoritiesListModel>(); var allEmployees = _employeeRepository.GetIncluding(e => e.KBZPosition, e => e.SourceOrganization, e => e (HQEmployee).Rank).Where(e => e.IsHQ); } }
I am getting error in the Where Clause of the LINQ Query becuase i am checking the unmapped field "IsHQ". The error says that the field "IsHQ" is not mapped into database. Following is the full description of the error:
The LINQ Expression could not be translated, either rewrite the query in a form that can be translated or switch to client evaluation explicitly by inserting a call to AsEnumerable.
I have searched on google and find this question in the net but i did not find a solution for my issue. Please give me suggestion because it was working in .NET Core 3.1 and the project is already in production.