/// <summary>
/// Retrieve a single department
/// </summary>
/// <param name="performingUserId">user making the request</param>
/// <param name="departmentId">department to retrieve</param>
/// <returns></returns>
public IDepartmentDto GetDepartment(int performingUserId, int departmentId)
{
using (var context = new PrometheusContext())
{
return(ManualMapper.MapDepartmentToDto(context.Departments.FirstOrDefault(x => x.Id == departmentId)));
}
}
/// <summary>
/// Retrieves all departments
/// </summary>
/// <param name="performingUserId">user making the request</param>
/// <returns></returns>
public IEnumerable <IDepartmentDto> GetDepartments(int performingUserId)
{
using (var context = new PrometheusContext())
{
foreach (var department in context.Departments)
{
yield return(ManualMapper.MapDepartmentToDto(department));
}
}
}
protected override IDepartmentDto Create(int performingUserId, IDepartmentDto departmentDto)
{
using (var context = new PrometheusContext())
{
var department = context.Departments.Find(departmentDto.Id);
if (department != null)
{
throw new InvalidOperationException(string.Format("Department with ID {0} already exists.", departmentDto.Id));
}
var savedDepartment = context.Departments.Add(ManualMapper.MapDtoToDepartment(departmentDto));
context.SaveChanges(performingUserId);
return(ManualMapper.MapDepartmentToDto(savedDepartment));
}
}
protected override IDepartmentDto Update(int performingUserId, IDepartmentDto departmentDto)
{
using (var context = new PrometheusContext())
{
if (!context.Departments.Any(x => x.Id == departmentDto.Id))
{
throw new InvalidOperationException(string.Format("Department with ID {0} cannot be updated since it does not exist.",
departmentDto.Id));
}
var updatedDepartment = ManualMapper.MapDtoToDepartment(departmentDto);
context.Departments.Attach(updatedDepartment);
context.Entry(updatedDepartment).State = EntityState.Modified;
context.SaveChanges(performingUserId);
return(ManualMapper.MapDepartmentToDto(updatedDepartment));
}
}