/**
* @param selectedSubject Haluttu aine.
* @param date Haluttu pvm.
* @return Koe-taulukon malli, jossa on kaikki tietorakenteen parametreja osittain vastaavat
* yksiköt.
*/
public DataTableModel<CombinedUnit> getExamTableModel(Subject selectedSubject, String date) {
FN[] fields = {FN.SUBJECT_NAME, FN.EXAM_DATE};
String[] fieldNames = {"aine", "päivämäärä"};
String subjectId;
if (selectedSubject == null) {
subjectId = "";
} else {
subjectId = String.valueOf(selectedSubject.getRef());
}
String[] search = {subjectId, date};
List<Exam> exams = manager.searchExams(search, new FN[] {FN.EXAM_SUBJECT_REF, FN.EXAM_DATE});
List<CombinedUnit> data = manager.joinRefs(exams, FN.EXAM_SUBJECT_REF);
DataTableModel<CombinedUnit> model = new DataTableModel<>(data, fields, fieldNames);
return model;
}
/**
* Luo paramatrien pohjalta uusi tai tallenna vanha koe tietorakenteeseen.
*
* @param unit Yksikkö, joka tallennetaan.
* @param date Pvm.
* @param subject Aine.
* @return True, jos tallennettiin, muute false.
*/
public boolean saveExam(Exam unit, String date, String subject) {
boolean replace = false;
if (unit.getRef() != null) {
if (!confirmSave()) {
return false;
}
replace = true;
}
Exam edit = unit;
if (replace) {
edit = getEditable(edit);
}
try {
edit.parseField(FN.EXAM_DATE, date);
if (subject != null) {
List<Subject> match = manager.getSubjects(subject, FN.SUBJECT_NAME);
Subject s;
if (match.size() < 1) {
s = new Subject();
s.parseField(FN.SUBJECT_NAME, subject);
manager.add(s);
} else {
s = match.get(0);
}
Ref subjectRef = s.getRef();
edit.setField(FN.EXAM_SUBJECT_REF, subjectRef);
}
} catch (ParseException e) {
showParseError(e);
return false;
}
if (replace) {
manager.remove(unit);
}
manager.add(edit);
finishSave();
return true;
}