protected void Button_SubmitSubject_Click(object sender, EventArgs e)
{
if (Page.IsValid)
{
byte[] fileData = null;
int fileSize = 0;
using (BinaryReader reader = new BinaryReader(FileUpload_subject.PostedFile.InputStream))
{
fileData = reader.ReadBytes(FileUpload_subject.PostedFile.ContentLength);
fileSize = FileUpload_subject.PostedFile.ContentLength;
}
StudentSubject studentSubject = new StudentSubject { UserId = Convert.ToInt32(LoggedInUser.UserId), Assignment = fileData, SubjectName = TextBox_assignmentgrade.Text, SubjectCode = TextBox_subjectcode.Text, SubjectDescription = TextBox_subjectdescription.Text, AssignmentName = TextBox_assignmentname.Text, AssignmentSize = fileSize };
StudentSubjectService service = new StudentSubjectService();
var returnValue = service.AddStudentSubject(studentSubject);
Labeluploadstatus.ForeColor = System.Drawing.Color.Green;
Labeluploadstatus.Text = "data was saved successfully";
}
else
{
Labeluploadstatus.ForeColor = System.Drawing.Color.Red;
Labeluploadstatus.Text = "data was not saved";
}
LoadData();
}
public int AddStudentSubject(StudentSubject studentSubject)
{
StudentSubjectDao = new StudentSubjectDao();
//convert from business object to data access object
DataAccess.Domain.StudentSubject studentSubjectData = new DataAccess.Domain.StudentSubject { UserId = studentSubject.UserId, SubjectName = studentSubject.SubjectName, SubjectCode = studentSubject.SubjectCode, AssignmentName = studentSubject.AssignmentName, SubjectDescription = studentSubject.SubjectDescription, Assignment = studentSubject.Assignment, AssignmentSize = studentSubject.AssignmentSize };
return StudentSubjectDao.AddStudentSubject(studentSubjectData);
}
public StudentSubject GetAssignemnt(int studentSubjectId)
{
StudentSubjectDao = new StudentSubjectDao();
//convert from business object to data access object
DataAccess.Domain.StudentSubject studentSubjectData = new DataAccess.Domain.StudentSubject { StudentSubjectId = studentSubjectId };
studentSubjectData = StudentSubjectDao.GetStudentSubject(studentSubjectData);
// map data objects to business objects
StudentSubject studentSubject = new StudentSubject() { UserId = studentSubjectData.UserId, SubjectName = studentSubjectData.SubjectName, SubjectDescription = studentSubjectData.SubjectDescription, SubjectCode = studentSubjectData.SubjectCode, StudentSubjectId = studentSubjectData.StudentSubjectId, AssignmentName = studentSubjectData.AssignmentName, Assignment = studentSubjectData.Assignment, AssignmentSize = studentSubjectData.AssignmentSize };
return studentSubject;
}
public List<StudentSubject> GetStudentSubjects(User user, string studentId)
{
List<StudentSubject> list = new List<StudentSubject>();
StudentSubjectDao = new StudentSubjectDao();
//convert from business object to data access object
int userIdToUse = 0;
if (user.UserType == UserType.Employer)
{
// get it from student dao
UserDao = new UserDao();
// go into data access open connection, bring query, fill in datatable
DataTable resultDataTable = UserDao.GetUser("select * from WAE_LTU_USER where student_id='" + studentId + "'");
if (resultDataTable.Rows.Count == 1)
{
DataRow userRecord = resultDataTable.Rows[0];
userIdToUse = (int)userRecord.ItemArray[0];
}
}
else if (user.UserType == UserType.Student)
{
userIdToUse = Convert.ToInt32(user.UserId);
}
else
{
throw new ArgumentOutOfRangeException();
}
DataAccess.Domain.User userData = new DataAccess.Domain.User { UserId = userIdToUse };
List<DataAccess.Domain.StudentSubject> studentSubjectDataList = StudentSubjectDao.GetStudentSubjects(userData);
// map list of data objects to business objects
foreach (DataAccess.Domain.StudentSubject record in studentSubjectDataList)
{
var businessStudentSubject = new StudentSubject{ UserId = record.UserId, Assignment= record.Assignment, AssignmentName= record.AssignmentName, StudentSubjectId= record.StudentSubjectId, SubjectCode = record.SubjectCode, SubjectDescription = record.SubjectDescription, SubjectName= record.SubjectName};
list.Add(businessStudentSubject);
}
return list;
}
