public async Task HandleAsync(UserUpdateSpecificCommand command)
{
var user = await _context
.User
.Include(t => t.UserCoursePrivilege)
.ThenInclude(t => t.Course)
.FirstOrDefaultAsync(x => x.Id == command.UserId);
var courseIdsToRemove = command.Courses.Where(x => x.Privileges.Count == 0).Select(x => x.CourseId).ToList();
if (courseIdsToRemove.Count != 0)
{
courseIdsToRemove.ForEach(x =>
{
_context.UserCoursePrivilege.Remove(user.UserCoursePrivilege.FirstOrDefault(y => y.CourseId == x));
});
}
var courseIdsToChange = command.Courses.Where(x => x.Privileges.Count != 0).Select(x => x.CourseId).ToList();
if (courseIdsToChange.Count != 0)
{
courseIdsToChange.ForEach(x =>
{
var currentPrivilegeIds = user.UserCoursePrivilege.Where(y => y.CourseId == x).Select(y => y.PrivilegeId).ToList();
var changedPrivilegeIds = command.Courses.FirstOrDefault(y => y.CourseId == x).Privileges;
var res = currentPrivilegeIds.Union(changedPrivilegeIds).Except(currentPrivilegeIds.Intersect(changedPrivilegeIds)).ToList();
res.ForEach(y =>
{
if (currentPrivilegeIds.Contains(y))
{
var privileges = _context.UserCoursePrivilege.Where(z => z.PrivilegeId == y && z.UserId == command.UserId && z.CourseId == x);
_context.UserCoursePrivilege.RemoveRange(privileges);
}
else
{
_context.UserCoursePrivilege.Add(new UserCoursePrivilege()
{
PrivilegeId = y,
UserId = command.UserId,
CourseId = x
});
}
});
});
}
await _context.SaveChangesAsync();
}
public async Task <IActionResult> UpdateSpecific(UserUpdateSpecificCommand command)
{
await _commandBus.ExecuteAsync(command);
return(Ok());
}
