private String GetChartUrl(StudentGradeDistribution gd)
{
StringBuilder labels = new StringBuilder();
StringBuilder labelPos = new StringBuilder();
int count = 0;
String tempDate;
foreach (var date in gd.dates)
{
tempDate = date.ToShortDateString();
tempDate = tempDate.Substring(0, tempDate.LastIndexOf("/"));
labels.Append(tempDate).Append("|");
labelPos.Append(count).Append(",");
count++;
}
labelPos = labelPos.Remove(labelPos.Length-1,1);//.Substring(0, labelPos.Length - 1);
labels = labels.Remove(labels.Length - 1, 1);// Substring(0, labels.Length - 1);
StringBuilder grades = new StringBuilder();
foreach (var grade in gd.grades)
{
grades.Append(grade).Append(",");
}
grades = grades.Remove(grades.Length - 1, 1);// Substring(0, grades.Length - 1);
StringBuilder chartUrl = new StringBuilder("http://chart.apis.google.com/chart");
chartUrl.Append("?chxl=1:|").Append(labels);
chartUrl.Append("&chxp=1,").Append(labelPos);
chartUrl.Append("&chxr=0,0,100|1,0,").Append(count - 1);
chartUrl.Append("&chxs=1,676767,11.5,0,lt,676767");
chartUrl.Append("&chxt=y,x");
chartUrl.Append("&chs=600x300");
chartUrl.Append("&cht=lc");
chartUrl.Append("&chco=C2D6EB");
//chartUrl.Append("&chd=s:tjcfc");
chartUrl.Append("&chd=t:").Append(grades);
chartUrl.Append("&chdl=Grade");
chartUrl.Append("&chdlp=t");
chartUrl.Append("&chg=14.3,-1,1,1");
chartUrl.Append("&chls=4,4,0");
chartUrl.Append("&chm=B,C5D4B5BB,0,0,0");
chartUrl.Append("&chtt=Grade+Summary");
return chartUrl.ToString();
}
public ActionResult StudentPerformance(string courseTermShortName, string siteShortName, Guid id /*ProfileID*/)
{
Profile profile = dataRepository.GetProfileByID(id);
double totalWeight = 0;
if (profile == null)
return View("ProfileNotFound");
if (!AuthHelper.IsCurrentStudentOrUserIsAdmin(courseTerm, id))
{
return View("NotAuthorized");
}
List<GradeSection> sections = new List<GradeSection>();
foreach (AssessmentType type in dataRepository.GetNonTestBankAssessmentTypes(courseTerm))
{
GradeSection section = new GradeSection(type, profile,dataRepository,true);
totalWeight += section.Weight;
sections.Add(section);
}
PerformanceReportModel model = new PerformanceReportModel(sections, profile);
model.TotalWeight = totalWeight;
CourseTermMember member = dataRepository.GetCourseTermMemberByMembershipID(courseTerm, id);
model.FinalGrade = member.GetFinalGrade();
model.FinalLetterGrade = member.GetFinalLetterGrade();
//student performance report
DateTime now = DateTime.Now;
DateTime snapshot = courseTerm.Term.StartDate.AddDays(21);
Double grade;
StudentGradeDistribution gd = new StudentGradeDistribution();
while (snapshot.CompareTo(now) < 0)
{
grade = member.GetGradeByDate(true, snapshot);
gd.AddGrade(grade, snapshot);
snapshot = snapshot.AddDays(7);
}
if (gd != null)
{
model.chartUrl = GetChartUrl(gd);
}
List<CourseTermMember> students = dataRepository.GetStudentsInCourseTerm(courseTerm);
int currentStudentIndex = students.IndexOf(member);
if (currentStudentIndex > 0)
{
model.PreviousStudent = students[currentStudentIndex - 1].Profile;
}
else if (currentStudentIndex == 0)
{
model.PreviousStudent = students[students.Count - 1].Profile;
}
if (currentStudentIndex < students.Count - 1)
{
model.NextStudent = students[currentStudentIndex + 1].Profile;
}
else if (currentStudentIndex == students.Count - 1)
{
model.NextStudent = students[0].Profile;
}
return View(model);
}
public GradeSnapshotModel(StudentGradeDistribution g, Profile p)
{
gradeDist = g;
profile = p;
}
public ActionResult GradeSnapshot(string courseTermShortName, string siteShortName, Guid id /*ProfileID*/)
{
Profile profile = dataRepository.GetProfileByID(id);
if (profile == null)
return View("ProfileNotFound");
if (!AuthHelper.IsCurrentStudentOrUserIsAdmin(courseTerm, id))
{
return View("NotAuthorized");
}
CourseTermMember member = dataRepository.GetCourseTermMemberByMembershipID(courseTerm, id);
DateTime now = DateTime.Now;
DateTime snapshot = courseTerm.Term.StartDate.AddDays(14);
Double grade;
StudentGradeDistribution gd = new StudentGradeDistribution();
while (snapshot.CompareTo(now) < 0)
{
grade = member.GetGradeByDate(true, snapshot);
gd.AddGrade(grade, snapshot);
snapshot = snapshot.AddDays(7);
}
GradeSnapshotModel model = new GradeSnapshotModel(gd, profile);
return View(model);
}
