Defining and implementation of PersonTypes

[marblekirby]

We should define a list of PersonTypes that will be in the system. If we are going to use these PersonTypes for authorization then I think we should implement an enum-like structure for our PersonType entity. We could define the types first then store them within the PersonType entity. This is an example with 'Volunteer', 'Employee' and 'Manager':

public class PersonType
{
	public static PersonType Volunteer = new PersonType(1, "Volunteer");
	public static PersonType Employee = new PersonType(2, "Employee");
	public static PersonType Manager = new PersonType(3, "Manager");

	public int Id { get; private set; }
	public string Name { get; private set; }
	public ICollection<PersonPersonType> PersonPersonTypes { get; set; }
	public PersonType(int id, string name)
	{
		this.Id = id;
		this.Name = name;
	}

	public List<PersonType> GetList()
	{
		return new List<PersonType> {
			Volunteer, Employee, Manager
	};
}

and then say we need to get all people that have the 'Manager' PersonType, we can use something like the following

_DbContext.Persons
    .Include(x => x.PersonPersonType)
    .ThenInclude(x => x.PersonType)
    .Where(x => x.PersonPersonType.Any(y => y.PersonTypeId == PersonType.Manager.Id));