// <summary>
// creates an assignment
// </summary>
public void CreateAssignment(AssignmentCreationViewModel newAssignmentViewModel)
{
Assignment newAssignment = new Assignment
{
CourseInstanceId = newAssignmentViewModel.CourseInstanceId,
Name = newAssignmentViewModel.Name,
Description = newAssignmentViewModel.Description
};
var assignment = _db.Assignments.Add(newAssignment);
foreach (int problemId in newAssignmentViewModel.AssignmentProblemIds)
{
AssignmentProblem AssignmentProblemRelation = new AssignmentProblem()
{
AssignmentId = assignment.Id,
ProblemId = problemId
};
_db.AssignmentProblems.Add(AssignmentProblemRelation);
}
;
try
{
_db.SaveChanges();
}
catch (Exception e)
{
return;
}
}
/// <summary>
/// Update assignment information via TeacherCreateAssignmentViewModel
/// </summary>
public bool UpdateAssignment(TeacherCreateAssignmentViewModel assignment)
{
var dbAssignment = _db.Assignments.SingleOrDefault(x => x.Id == assignment.Id);
if (dbAssignment != null)
{
dbAssignment.Description = assignment.Description;
dbAssignment.Name = assignment.Name;
dbAssignment.EndTime = DateTime.Parse(assignment.EndTime);
dbAssignment.StartTime = DateTime.Parse(assignment.StartTime);
dbAssignment.MaxCollaborators = assignment.MaxCollaborators;
// Remove problems
foreach (var assignmentProblem in _db.AssignmentProblems.Where(x => x.AssignmentId == assignment.Id))
{
var found = assignment.Problems.Any(problem => assignmentProblem.ProblemId == problem.ProblemId);
if (!found)
{
RemoveProblemFromAssignmentByIds(assignmentProblem.AssignmentId, assignmentProblem.ProblemId);
}
}
// Add/Edit existing problems
foreach (var problem in assignment.Problems)
{
var dbAssignmentProblem = _db.AssignmentProblems.SingleOrDefault(x => x.AssignmentId == assignment.Id && x.ProblemId == problem.ProblemId);
if (dbAssignmentProblem != null)
{
dbAssignmentProblem.MaxSubmissions = problem.MaxSubmissions;
dbAssignmentProblem.Weight = (byte)problem.Weight;
}
else
{
var newAssignmentProblem = new AssignmentProblem {
ProblemId = problem.ProblemId,
AssignmentId = assignment.Id,
Weight = (byte)problem.Weight,
MaxSubmissions = problem.MaxSubmissions
};
_db.AssignmentProblems.Add(newAssignmentProblem);
}
}
try {
_db.SaveChanges();
return(true);
}
catch (Exception e) {
return(false);
}
}
return(false);
}
/// <summary>
/// Create a new assignment via TeacherCreateAssignmentViewModel
/// </summary>
public bool CreateNewAssignment(TeacherCreateAssignmentViewModel assignment)
{
var newAssignment = new Assignment {
CourseInstanceId = assignment.CourseInstanceId,
Description = assignment.Description,
EndTime = DateTime.Parse(assignment.EndTime),
StartTime = DateTime.Parse(assignment.StartTime),
Name = assignment.Name,
MaxCollaborators = assignment.MaxCollaborators,
IsGraded = false
};
newAssignment = _db.Assignments.Add(newAssignment);
foreach (var assignmentProblem in assignment.Problems)
{
var problem = _db.Problems.SingleOrDefault(x => x.Id == assignmentProblem.ProblemId);
if (problem == null)
{
continue;
}
var newAssignmentProblem = new AssignmentProblem {
ProblemId = problem.Id,
AssignmentId = newAssignment.Id,
Weight = (byte)assignmentProblem.Weight,
MaxSubmissions = assignmentProblem.MaxSubmissions
};
_db.AssignmentProblems.Add(newAssignmentProblem);
}
var students = _courseService.GetAllStudentsInCourseInstance(newAssignment.CourseInstanceId);
// Create groups for students
var count = 1;
foreach (var student in students)
{
_db.AssignmentGroups.Add(new AssignmentGroup {
UserId = student.Id,
AssignmentId = newAssignment.Id,
GroupNumber = count
});
count++;
}
try {
_db.SaveChanges();
return(true);
}
catch (Exception e) {
return(false);
}
}
/**/ public static void main(string[] strarr)
{
In @in = new In(strarr[0]);
int num = @in.readInt();
int arg_23_0 = num;
int arg_1E_0 = num;
int[] array = new int[2];
int num2 = arg_1E_0;
array[1] = num2;
num2 = arg_23_0;
array[0] = num2;
double[][] array2 = (double[][])ByteCodeHelper.multianewarray(typeof(double[][]).TypeHandle, array);
for (int i = 0; i < num; i++)
{
for (int j = 0; j < num; j++)
{
array2[i][j] = @in.readDouble();
}
}
AssignmentProblem assignmentProblem = new AssignmentProblem(array2);
StdOut.println(new StringBuilder().append("weight = ").append(assignmentProblem.weight()).toString());
for (int j = 0; j < num; j++)
{
StdOut.println(new StringBuilder().append(j).append("-").append(assignmentProblem.sol(j)).append("' ").append(array2[j][assignmentProblem.sol(j)]).toString());
}
for (int j = 0; j < num; j++)
{
StdOut.println(new StringBuilder().append("px[").append(j).append("] = ").append(assignmentProblem.dualRow(j)).toString());
}
for (int j = 0; j < num; j++)
{
StdOut.println(new StringBuilder().append("py[").append(j).append("] = ").append(assignmentProblem.dualCol(j)).toString());
}
for (int j = 0; j < num; j++)
{
for (int k = 0; k < num; k++)
{
StdOut.println(new StringBuilder().append("reduced[").append(j).append("-").append(k).append("] = ").append(assignmentProblem.reduced(j, k)).toString());
}
}
}
public IActionResult Post([FromBody] AssignmentProblem assignmentProblem)
{
if (ModelState.IsValid)
{
try
{
AssignmentProblemService assignmentProblemService = new AssignmentProblemService();
var result = assignmentProblemService.FindAssignments(assignmentProblem.Values);
var json = JsonConvert.SerializeObject(result);
return(Ok(json));
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
return(StatusCode(StatusCodes.Status500InternalServerError));
}
}
return(UnprocessableEntity());
}
