fix AddProfessorToCourse

Tsi1.Api/Tsi1.Api/Controllers/CourseController.cs

@@ -110,7 +110,10 @@ namespace Tsi1.Api.Controllers
         [HttpPost("AddProfessorToCourse")]
         public async Task<IActionResult> AddProfessorToCourse(ProfessorCourseDto professorCourseDto)
         {
-            var result = await _courseService.AddProfessorToCourse(professorCourseDto);
+            var userId = int.Parse(HttpContext.User.Claims.FirstOrDefault(x => x.Type == "Id").Value);
+            var userType = HttpContext.User.Claims.FirstOrDefault(x => x.Type == ClaimTypes.Role).Value;
+
+            var result = await _courseService.AddProfessorToCourse(professorCourseDto, userId, userType);
             
             if (result.HasError)
             {

Tsi1.Api/Tsi1.BusinessLayer/Interfaces/ICourseService.cs

@@ -14,7 +14,7 @@ namespace Tsi1.BusinessLayer.Interfaces
 
         Task<ServiceResult<bool>> Matriculate(int userId, int courseId);
 
-        Task<ServiceResult<bool>> AddProfessorToCourse(ProfessorCourseDto professorCourseDto);
+        Task<ServiceResult<bool>> AddProfessorToCourse(ProfessorCourseDto professorCourseDto, int userId, string userType);
 
         Task<ServiceResult<List<CoursePreviewDto>>> GetAll(int tenantId, bool isTemplate = false);
 

Tsi1.Api/Tsi1.BusinessLayer/Services/CourseService.cs

@@ -160,7 +160,7 @@ namespace Tsi1.BusinessLayer.Services
             if (user == null || user.Professor == null)
             {
                 result.HasError = true;
-                result.Message = string.Format(ErrorMessages.UserDoesNotExist, user.Username);
+                result.Message = string.Format(ErrorMessages.UserDoesNotExist, user.Id);
                 return result;
             }