void Gradebook::exportStudent(const string studentID, string saveLocation) const
{
vector<string> newFields;
vector<string> newData;
for(set<Course>::const_iterator course = m_courses.begin(); course != m_courses.end(); ++course)
{
string courseName = course->m_courseName;
int year = course->m_year;
string semester = SemesterString[course->m_semester];
int idField = 0;
int nameField = 0;
//get the user ID / Student ID field
for(Student::const_iterator field = course->m_fields.begin(); field != course->m_fields.end(); ++field)
{
string f = *field;
if (f.compare("Student Id") == 0 || f.compare("User ID") == 0) {
break;
}
else idField++;
}
//iterating through the students
for(vector<Student>::const_iterator student = course->m_students.begin(); student != course->m_students.end(); ++student)
{
Student s = *student;
//checking every student ID for a match
if (s[idField].compare(studentID) == 0)
{
if (newData.size() == 0) newData.push_back(s[idField]); //first entry of the created csv is always the id
if (newFields.size() == 0) newFields.push_back("User ID");
//get iterators for the fields and for the data
Student::const_iterator sit = s.begin();
Student::const_iterator f = course->m_fields.begin();
//we can iterate through both vectors together since the fields and data should always match at a given index
while ((sit != s.end()) && (f != course->m_fields.end()))
{
string fval = *f; //current header title
std:transform(fval.begin(), fval.end(), fval.begin(), ::tolower); //makes fval lower case for more accurate checking
//we only keep the fields that aren't related to the names and user ids
if (fval.find("name") == string::npos && fval.find("student id") == string::npos && fval.find("user id") == string::npos)
{
stringstream ss;
//building new header titles in the form courseName-semester-year-title
ss << courseName << "-" << semester << "-" << year << "-" << *f;
string sout = ss.str();
sout.erase(remove(sout.begin(), sout.end(), '\r'), sout.end()); //removes newlines
newFields.push_back(sout);
ss.str("");
string dout = *sit;
dout.erase(remove(dout.begin(), dout.end(), '\r'), dout.end()); //removes newlines
newData.push_back("\""+dout+"\"");
}
f++;
sit++;
}
}
}
}
if (newData.size() == 0) {
cout << "No match found for student " << studentID << endl;
return;
}
//writing out
ofstream outfile((saveLocation).c_str());
int ctr = 0;
//writing the fields
for (vector<string>::const_iterator fw = newFields.begin(); fw != newFields.end(); ++fw) {
outfile << *fw;
if (ctr != newFields.size()-1) outfile << ",";
ctr++;
}
ctr = 0;
outfile << endl;
//writing the data
for (vector<string>::const_iterator dr = newData.begin(); dr != newData.end(); ++dr) {
outfile << *dr;
if (ctr != newData.size()-1) outfile << ",";
ctr++;
}
outfile.close();
cout << "Exported student " << studentID << " to " << saveLocation << endl;
}
