private List <HometaskMark> GetHometasksMarksFromNode(XElement hometasksMarksNode)
{
List <HometaskMark> hometasksMarks = new List <HometaskMark>();
foreach (var mark in hometasksMarksNode.Elements())
{
HometaskMark importMark = new HometaskMark
{
Id = Convert.ToInt32(mark.Attribute("id").Value),
ComplitionDate = mark.Attribute("complition-date").Value.GetDate(),
Done = Convert.ToBoolean(mark.Attribute("done").Value)
};
hometasksMarks.Add(importMark);
}
return(hometasksMarks);
}
private XElement GetMarkXmlPresentation(HometaskMark mark)
{
XElement markElement = new XElement("mark", new XAttribute("id", mark.Id),
new XAttribute("complition-date", mark.ComplitionDate.GetDate()),
new XAttribute("done", mark.Done)
);
XElement course = new XElement("course");
course.Add(new XElement("course", new XAttribute("id", mark.Course.Id),
new XAttribute("name", mark.Course.Name))
);
XElement hometask = new XElement("hometask");
hometask.Add(new XElement("hometask", new XAttribute("id", mark.Hometask.Id),
new XAttribute("name", mark.Hometask.Name))
);
markElement.Add(course);
markElement.Add(hometask);
return(markElement);
}
private Academy GetAcademyObjectModelFromXml(XDocument document)
{
Academy academy = new Academy();
XElement academyNode = document.Elements().First();
XElement coursesNode = academyNode.Descendants("courses-list").FirstOrDefault();
List <Course> courses = GetCoursesFromNode(coursesNode);
XElement lecturersNode = academyNode.Descendants("lecturers-list").FirstOrDefault();
List <Lecturer> lecturers = GetLecturersFromNode(lecturersNode);
XElement studentsNode = academyNode.Descendants("students-list").FirstOrDefault();
List <Student> students = GetStudentsFromNode(studentsNode);
XElement hometasksNode = academyNode.Descendants("hometasks-list").FirstOrDefault();
List <Hometask> hometasks = GetHometasksFromNode(hometasksNode);
XElement hometasksMarksNode = academyNode.Descendants("hometasks-marks-list").FirstOrDefault();
List <HometaskMark> hometasksMarks = GetHometasksMarksFromNode(hometasksMarksNode);
List <KeyValuePair <int, int> > bindingCoursesLecturersDictionary = GetBindingDictionaryById(coursesNode, "lecturers");
List <KeyValuePair <int, int> > bindingCoursesStudentsDictionary = GetBindingDictionaryById(coursesNode, "students");
List <KeyValuePair <int, int> > bindingCoursesHometasksDictionary = GetBindingDictionaryById(coursesNode, "hometasks");
List <KeyValuePair <int, int> > bindingStudentsMarksDictionary = GetBindingDictionaryById(studentsNode, "hometask-marks");
List <KeyValuePair <int, int> > bindingMarksHometasksDictionary = GetBindingDictionaryById(hometasksMarksNode, "hometask");
List <KeyValuePair <int, int> > bindingMarksCoursesDictionary = GetBindingDictionaryById(hometasksMarksNode, "course");
// courses and lecturers binding
foreach (var courseLecturer in bindingCoursesLecturersDictionary)
{
Course course = courses.Where(n => n.Id == courseLecturer.Key).First();
Lecturer lecturer = lecturers.Where(n => n.Id == courseLecturer.Value).First();
course.Lecturers.Add(lecturer);
lecturer.Courses.Add(course);
}
// courses and students binding
foreach (var courseStudent in bindingCoursesStudentsDictionary)
{
Course course = courses.Where(n => n.Id == courseStudent.Key).First();
Student student = students.Where(n => n.Id == courseStudent.Value).First();
course.Students.Add(student);
student.Courses.Add(course);
}
// courses and hometasks binding
foreach (var courseHometask in bindingCoursesHometasksDictionary)
{
Course course = courses.Where(n => n.Id == courseHometask.Key).First();
Hometask hometask = hometasks.Where(n => n.Id == courseHometask.Value).First();
course.Hometasks.Add(hometask);
hometask.Course = course;;
}
// staudents and marks binding
foreach (var studentMark in bindingStudentsMarksDictionary)
{
Student student = students.Where(n => n.Id == studentMark.Key).First();
HometaskMark mark = hometasksMarks.Where(n => n.Id == studentMark.Value).First();
student.Marks.Add(mark);
}
// marks and hometasks binding
foreach (var markHometask in bindingMarksHometasksDictionary)
{
HometaskMark mark = hometasksMarks.Where(n => n.Id == markHometask.Key).First();
Hometask hometask = hometasks.Where(n => n.Id == markHometask.Value).First();
mark.Hometask = hometask;
hometask.HomeworkMarks.Add(mark);
}
// marks and courses binding
foreach (var markHometask in bindingMarksCoursesDictionary)
{
HometaskMark mark = hometasksMarks.Where(n => n.Id == markHometask.Key).First();
Course course = courses.Where(n => n.Id == markHometask.Value).First();
mark.Course = course;
}
academy.Courses = courses;
academy.Lecturers = lecturers;
academy.Students = students;
academy.Hometasks = hometasks;
academy.HometasksMarks = hometasksMarks;
return(academy);
}
