private void RemoveCoursePaymentType(string courseId, string pTypeId)
{
CoursePaymentType coursePT = _context.CoursePaymentTypes
.FirstOrDefault(cpt => cpt.CourseId == courseId && cpt.PaymentTypeId == pTypeId);
if (coursePT != null)
{
_context.CoursePaymentTypes.Remove(coursePT);
_context.SaveChanges();
}
}
public async Task <IdentityResult> UpdateCourseAsync(CourseViewModel course)
{
Course dbCourse = _context.Courses
.Include(cour => cour.CourseAppUsers)
.Include(cour => cour.CoursePaymentTypes)
.FirstOrDefault(cour => cour.Id == course.Id);
if (dbCourse == null)
{
return(IdentityResult.Failed(new IdentityError {
Description = "Курс не знайдено"
}));
}
IList <string> coursTeachersId = dbCourse.CourseAppUsers.Select(usr => usr.AppUserId).ToList();
IEnumerable <string> addedTeachers = course.TeachersId.Except(coursTeachersId);
IEnumerable <string> removedTeachers = coursTeachersId.Except(course.TeachersId);
IList <string> coursPtypes = dbCourse.CoursePaymentTypes.Select(cpt => cpt.PaymentTypeId).ToList();
IEnumerable <string> addedPTypes = course.PTIds.Except(coursPtypes);
IEnumerable <string> removedPTypes = coursPtypes.Except(course.PTIds);
dbCourse.Name = course.Name;
dbCourse.Description = course.Description;
dbCourse.IsActive = course.IsActive;
dbCourse.Price = course.Price;
dbCourse.AllowOneTimePrice = course.AllowOneTimePrice;
dbCourse.OneTimePrice = course.OneTimePrice;
var state = _context.Courses.Update(dbCourse);
if (state.State != EntityState.Modified)
{
return(IdentityResult.Failed(new IdentityError {
Description = "Курс не оновлено"
}));
}
await _context.SaveChangesAsync();
foreach (string teacher in addedTeachers)
{
await _teacherService.AddTeacherToCourse(teacher, dbCourse.Id);
}
foreach (string teacher in removedTeachers)
{
await _teacherService.RemoveTeacherFromCourse(teacher, dbCourse.Id);
}
foreach (string pType in addedPTypes)
{
_context.CoursePaymentTypes.Add(new CoursePaymentType {
CourseId = course.Id, PaymentTypeId = pType
});
}
foreach (string pType in removedPTypes)
{
CoursePaymentType removedCPT = _context.CoursePaymentTypes
.FirstOrDefault(cpt => cpt.PaymentTypeId == pType && cpt.CourseId == course.Id);
if (removedCPT != null)
{
_context.CoursePaymentTypes.Remove(removedCPT);
}
}
await _context.SaveChangesAsync();
return(IdentityResult.Success);
}